Find the best deals on flights from Houston George Bush Intercntl. (IAH) to London (YXU). Compare prices from hundreds of major travel agents and airlines, all in one search. Mon, 25 Nov LCY - IAH with Virgin Atlantic. 1 stop. from £591. London. £601 per passenger.Departing Tue, 23 Apr, returning Tue, 30 Apr.Return flight with SWISS.Outbound indirect flight with SWISS, departs from Houston George Bush Intercntl. on Tue, 23 Apr, arriving in London City.Inbound indirect flight with SWISS, departs from London City on ... Our data shows that the cheapest route for a one-way flight from Houston to London Heathrow Airport cost $442 and was between Houston George Bush Intcntl Airport and London Heathrow Airport. On average, the best prices are found if you fly this route. The average price for a return flight for this route is $553.Compare flight deals to London City from Houston George Bush Intercntl. from over 1,000 providers. Then choose the cheapest plane tickets or fastest journeys. Flex your dates to find the best Houston George Bush Intercntl.–London City ticket prices.09/13/24 - 09/21/24. from. $ 306*. Viewed: 22 hours ago. From. Houston (IAH) To. Boston (BOS) Roundtrip. Flights to London Heathrow Airport from Houston in February are about $1,022 on average during February, but can be found for as low as $621. When is the cheapest time to fly from Houston to London Heathrow Airport (IAH - LHR)? 09/13/24 - 09/21/24. from. $ 306*. Viewed: 22 hours ago. From. Houston (IAH) To. Boston (BOS) Roundtrip.IAH. Houston. LGW. London. $626. Roundtrip. found 2 days ago. $451 Search for cheap flights deals from IAH to LGW (George Bush Intercontinental to Gatwick). We offer cheap direct, non-stop flights including one way and roundtrip tickets.Flights to London Heathrow Airport from Houston in February are about $1,022 on average during February, but can be found for as low as $621. When is the cheapest time to fly from Houston to London Heathrow Airport (IAH - LHR)?IAH - LON. Find cheap flights from Houston George Bush Airport to London from $188. Round-trip. 1 adult. Economy. 0 bags. Add hotel. Sat 5/18. Sat 5/25. Search. Direct …$ 630. * 1 Passenger, Economy. Home. United flights. Flights to United Kingdom. Houston - London. Featured daily fares for flights from Houston (IAH) to London (LHR) Economy. … Fly to London Luton, train • 12h 33m. Fly from Houston (IAH) to London Luton (LTN) IAH - LTN. Take the train from Luton to London St Pancras Intl. £280 - £1,021. Quickest way to get there Cheapest option Distance between. United Airlines FLIGHT UA4 from London to Houston. On-time Performance, delay statistics and flight information for UA4 LIVE TRACKING ... LHR -> IAH London 20 Apr 13:40 BST London (LHR / EGLL) 20 Apr 13:40 BST: Houston 20 Apr 17:55 CDT Houston (IAH / KIAH) 20 Apr 17:55 CDT: 19. Apr On Time1 day ago · Find airfare and ticket deals for cheap flights from Houston George Bush Intcntl Airport (IAH) to London Heathrow Airport (LHR). Search flight deals from various travel partners with one click at $325. $436 Cheap British Airways flights Houston (IAH) to London (LHR) Prices were available within the past 7 days and start at $436 for one-way flights and $487 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Amazing British Airways IAH to LHR Flight Deals. The cheapest flights to Heathrow found within the past 7 days were $595 round trip and $436 one way. Prices and availability subject to change. Additional terms may apply. Mon, Mar 3 - Mon, Mar 10.How prices are estimated. In most cities, your cost is calculated up front, before you confirm your ride. In others, you will see an estimated price range (see applicable price terms in your city). Here are some fees and factors that can affect your price: Airfares from $405 One Way, $470 Round Trip from Houston to London. Prices starting at $470 for return flights and $405 for one-way flights to London were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply. Mon, Sep 30 - Tue, Oct 15. IAH. Houston. LGW. While the most popular route (Houston George Bush Intcntl - London Heathrow) can be booked for $524 on average our data indicates $2,486 when flying …Flight BA195 from London to Houston is operated by British Airways. Scheduled time of departure from Heathrow is 09:25 BST and scheduled time of arrival in George Bush Intercontinental is 13:45 CDT. The duration of the flight British Airways BA 195 is 10 hours 20 minutes.(IAH) George Bush Intercontinental Airport Houston, TX, US (LHR) London Heathrow Airport London, EN, GB. On-Time Performance Chart (using rounded numbers) On-Time. 46. 75%. Late. 4. 7%. Very Late. 3. 5%. Excessive. 7. 11%. Cancelled. 0. 0%. Diverted. 1. 2%. Delay Statistics (Aggregate Arrival Delay Statistics for this Flight)*Awards have been available for round trips within the last 48 hours and may not be currently available. For Economy class, awards listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions.Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.Find cheap flights from Houston George Bush Airport to London Luton Airport from. $297. Round-trip. 1 adult. Economy. 0 bags. Add hotel. Wed 5/22. Wed 5/29.London. $596 per passenger. Departing Sat, May 4, returning Sat, May 11. Round-trip flight with Spirit Airlines and Fly Play. Outbound indirect flight with Spirit Airlines, departing from Houston George Bush Intercntl. on Sat, May 4, arriving in London Stansted.The cheapest way to get from Houston Airport (IAH) to Rotterdam costs only €649, and the quickest way takes just 9½ hours. Find the travel option that best suits you. ... Fly from Houston (IAH) to London Heathrow (LHR) IAH - LHR; Take the train from London St Pancras Intl to Rotterdam Centraal; €421 - €1286. Fly to Frankfurt, train ...Our data shows that the cheapest route for a one-way flight from Houston George Bush Intcntl Airport to London cost $439 and was between Houston George Bush Intcntl Airport and London Heathrow Airport. On average, the best prices are found if you fly this route. The average price for a return flight for this route is $597.Cheap Flights from Houston to London (HOU-LHR) Prices were available within the past 7 days and start at $405 for one-way flights and $484 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Houston to London with no change fee on selected flights.IAH. Houston. LHR. London. $598. Roundtrip. found 3 days ago. Wed, Dec 11 - Wed, Dec 18. IAH. Houston. LHR. London. $605.Flight BA194 from Houston to London is operated by British Airways. Scheduled time of departure from George Bush Intercontinental is 15:35 CDT and scheduled time of arrival in Heathrow is 06:50 BST. The duration of the flight British Airways BA 194 is 9 …Flights to London Heathrow Airport from Houston in February are about $1,022 on average during February, but can be found for as low as $621. When is the cheapest time to fly from Houston to London Heathrow Airport (IAH - LHR)?Fly Houston to Manchester, train • 15h 23m. Fly from Houston (IAH) to Manchester (MAN) IAH - MAN. Take the train from Wilmslow to London Euston. £379 - £1,176. Quickest way to get there Cheapest option Distance between.09/24/24 - 10/03/24. from. $ 986*. Viewed: 17 hours ago. From. Houston (IAH) To. Barcelona (BCN) Roundtrip.London. $596 per passenger. Departing Sat, May 4, returning Sat, May 11. Round-trip flight with Spirit Airlines and Fly Play. Outbound indirect flight with Spirit Airlines, departing from Houston George Bush Intercntl. on Sat, May 4, arriving in London Stansted.Towncar • 24 min. Take a town car from Houston Airport to Downtown Houston (Station) 22.2 miles. $110 - $150. Quickest way to get there Cheapest option Distance between.Flight BA195 from London to Houston is operated by British Airways. Scheduled time of departure from Heathrow is 09:25 BST and scheduled time of arrival in George Bush Intercontinental is 13:45 CDT. The duration of the flight British Airways BA 195 is 10 hours 20 minutes. Wed, May 15 LHR – IAH with Scandinavian Airlines. 1 stop. from $533. London.$585 per passenger.Departing Mon, Oct 7, returning Tue, Oct 8.Round-trip flight with Air Canada and Lufthansa.Outbound indirect flight with Air Canada, departing from Houston George Bush Intercntl. on Mon, Oct 7, arriving in London Heathrow.Inbound indirect flight ... Singapore Airlines flight deals and tickets from Houston to London (IAH to SEN)Flight deals from Houston (IAH) to London (LHR) Virgin Atlantic is incredibly proud to have been awarded Diamond status in Health and Safety by APEX and Simpliflying. This is the highest standard possible, and shows our unwavering commitment to keeping our staff and customers safe and sound throughout the Covid-19 pandemic.Fly Emirates to Houston (IAH) and beyond. Get inspired by our recommended destinations and book your next flight or vacation today. And on your way, enjoy superior comfort, gourmet meals and award-winning entertainment with us, whether you’re flying in Economy Class, Premium Economy, Business Class or First Class.Cheap Flights from Houston to London (HOU-LHR) Prices were available within the past 7 days and start at $405 for one-way flights and $484 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Houston to London with no change fee on selected flights.London has five major airports you can fly to, London Heathrow (LHR), London City (LCY), London Gatwick (LGW), London Luton (LTN), and London Stansted (STN). LHR is about 16 miles from Downtown London, and LCY is about 8 miles away, the closest airport to the city. LGW is about 38 miles, STN about 30 miles, and LTN about 34 miles.Flights between Houston and London, UK - our lowest fares in cash. Looking for flights from Houston (IAH) to London, UK (LHR)? Fly Air Canada, voted "Best Airline in North America" by Skytrax and Global Traveler Magazine. Book your Houston to London, UK flight today.12 minutes. 17 minutes. International Processing. International passengers who arrive at both Terminals D and E will proceed through Customs & Immigration to the Terminal E international arrivals hall. * Does not include secondary processing by CBP. TSA Security Recheck. TSA Security Recheck. Less than 10 minutes. $436 Cheap British Airways flights Houston (IAH) to London (LHR) Prices were available within the past 7 days and start at $436 for one-way flights and $487 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. London. $794 per passenger. Departing Wed, Apr 17, returning Wed, Apr 24. Round-trip flight with Air France and easyJet. Outbound indirect flight with Air France, departing from Houston George Bush Intercntl. on Wed, Apr 17, arriving in London Stansted.In the past 3 days, the cheapest one-way tickets to London Heathrow Airport from Houston George Bush Airport were found on WestJet ($421) and Iberia ($425), and the lowest …Mon, Nov 18 - Fri, Nov 29. IAH. Houston. LHR. London. $487. Roundtrip. London.$524 per passenger.Departing Tue, Apr 30, returning Tue, May 7.Round-trip flight with Spirit Airlines and Norse Atlantic Airways (UK).Outbound indirect flight with Spirit Airlines, departing from Houston George Bush Intercntl. on Tue, Apr 30, arriving in London Gatwick.Inbound indirect flight with Norse Atlantic Airways (UK), departing ... Search and compare business class flight deals to London. Fly from Washington, D.C. from $1,789, from Newark from $1,849, from New York from $1,912. Book your business class tickets to London.Find United Airlines cheap flights from Houston to Dublin. Enjoy a Houston to Dublin modern flight experience in premium cabins with Wi-Fi.Book our best prices between Houston and London within the next 6 months. Virgin Atlantic is incredibly proud to have been awarded Diamond status in Health and Safety by APEX and Simpliflying. This is the highest standard possible, and shows our unwavering commitment to keeping our staff and customers safe and sound throughout the Covid-19 ...Cheap Flights from Houston to Istanbul (IAH-IST) Prices were available within the past 7 days and start at $597 for one-way flights and $871 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Houston to Istanbul with no change fee on selected flights.Rome2Rio also offers online bookings for selected operators, making reservations easy and straightforward. The cheapest way to get from Houston Airport (IAH) to Bhutan costs only $1,724, and the quickest way takes just 22 hours. Find the travel option that best suits you.Flight deals from Houston (IAH) to London (LHR) Virgin Atlantic is incredibly proud to have been awarded Diamond status in Health and Safety by APEX and Simpliflying. This is the highest standard possible, and shows our unwavering commitment to keeping our staff and customers safe and sound throughout the Covid-19 pandemic.Airlines flying from Houston to London Gatwick. In total there are 3 airlines that cover the full route from Houston IAH to London Gatwick LGW. These airlines are: JetBlue (B6) Lufthansa (LH) Delta (DL) All other flights from Houston to London Gatwick are operated by a combination of multiple carriers, which are listed below:Amazing Turkish Airlines IAH to LHR Flight Deals. The cheapest flights to Heathrow found within the past 7 days were $812 round trip and $571 one way. Prices and availability subject to change. Additional terms may apply. Thu, Oct 17 - Mon, Oct 21. London.$524 per passenger.Departing Tue, Apr 30, returning Tue, May 7.Round-trip flight with Spirit Airlines and Norse Atlantic Airways (UK).Outbound indirect flight with Spirit Airlines, departing from Houston George Bush Intercntl. on Tue, Apr 30, arriving in London Gatwick.Inbound indirect flight with Norse Atlantic Airways (UK), departing ... At present, there are 114 domestic flights from Houston. Remove ads. The longest flight from Houston IAH is a 5,339 mile (8,593 km) non-stop route to Sydney SYD. This direct flight takes around 17 hours and 35 minutes and is operated by United Airlines. Find United Airlines cheap flights from London to Houston. Enjoy a London to Houston modern flight experience in premium cabins with Wi-Fi. Flights to London Heathrow Airport from Houston in February are about $1,022 on average during February, but can be found for as low as $621. When is the cheapest time to fly from Houston to London Heathrow Airport (IAH - LHR)? The cheapest way to get from Houston Airport (IAH) to Barcelona costs only €555, and the quickest way takes just 12¾ hours. Find the travel option that best suits you. ... Flights from Houston to Girona via London Heathrow, Brussels Ave. Duration 21h 25m When Thursday and Sunday Estimated price €600 - €2200 ...Review: British Airways B777-300 Club Suites Business Class (LHR-IAH) To wrap up our trip, we flew British Airways' new Club Suites on the B777-300 from London Heathrow to Houston-Intercontinental. For a long time, British Airways was known for their terrible 2-4-2 business class layout with the old "coffin" Club World seats. London.$524 per passenger.Departing Tue, Apr 30, returning Tue, May 7.Round-trip flight with Spirit Airlines and Norse Atlantic Airways (UK).Outbound indirect flight with Spirit Airlines, departing from Houston George Bush Intercntl. on Tue, Apr 30, arriving in London Gatwick.Inbound indirect flight with Norse Atlantic Airways (UK), departing ... Air Canada Flights from Houston to London (IAH to LHR) starting at $600. As COVID-19 disrupts travel, a few airlines are offering WAIVING CHANGE FEE for new bookingsBA194 and Houston IAH to London LHR Flights. Flight BA194 is code-shared by 4 airlines using the flight numbers AA6951, AY5494, EI8894, IB7389. Other flights departing from Houston IAH: WN6115, LH441, DL1572, AF637. Other flights arriving at London LHR: BA28, UA901, BA126, BA212.Houston George Bush Intcntl London Heathrow. IAH - LHR. IAH LHR. Houston George Bush Intcntl. Tue 9/10. 2 stops 23h 10m. London Heathrow. Wed 9/18. 2 stops 23h 19m. $632. Pick Dates. Flights are sorted by cheapest first. Deals found on 4/23. IAH-LHR.Rome2Rio also offers online bookings for selected operators, making reservations easy and straightforward. The cheapest way to get from Houston Airport (IAH) to Bhutan costs only $1,724, and the quickest way takes just 22 hours. Find the travel option that best suits you.IAH - LON. Find cheap flights from Houston George Bush Airport to London from $188. Round-trip. 1 adult. Economy. 0 bags. Add hotel. Sat 5/18. Sat 5/25. Search. Direct … from $537. London.$540 per passenger.Departing Wed, Aug 21, returning Sun, Sep 8.Round-trip flight with Spirit Airlines and easyJet.Outbound indirect flight with Spirit Airlines, departing from Houston George Bush Intercntl. on Wed, Aug 21, arriving in London Gatwick.Inbound indirect flight with easyJet, departing from London Luton on Sun, Sep ... Flights to London Heathrow Airport from Houston in February are about $1,022 on average during February, but can be found for as low as $621. When is the cheapest time to fly from Houston to London Heathrow Airport (IAH - LHR)? VIRGINATLANTIC.COM. However, booking Virgin Atlantic business-class flights is unreasonable — you can easily drop 67,500 miles and $875 in fees one-way. It's worth noting that you can book Delta flights to London for as little as 15,000 points in economy and 47,500 points in Delta One (business class). Amazing Delta IAH to LHR Flight Deals. The cheapest flights to Heathrow found within the past 7 days were $590 round trip and $440 one way. Prices and availability subject to change. Additional terms may apply. Sun, Sep 22 - Tue, Sep 24. Cheap flight deals from Houston to London (IAH-YXU) Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Houston to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals ...Cheap flight deals from Houston to London (IAH-YXU) Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Houston to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals ...The total flight duration from IAH to LHR is 10 hours, 10 minutes. This assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/h or 434 knots. It also adds an extra 30 minutes for take-off and landing. Your exact time may vary depending on wind speeds. If you're planning a trip, remember to add more ...Our data shows that the cheapest route for a one-way flight from Houston George Bush Intcntl Airport to London cost $439 and was between Houston George Bush Intcntl Airport and London Heathrow Airport. On average, the best prices are found if you fly this route. The average price for a return flight for this route is $597.Houston George Bush Intcntl London Heathrow. IAH - LHR. IAH LHR. Houston George Bush Intcntl. Tue 9/10. 2 stops 23h 10m. London Heathrow. Wed 9/18. 2 stops 23h 19m. $632. Pick Dates. Flights are sorted by cheapest first. Deals found on 4/23. IAH-LHR.London (LHR) 05/05/24 - 05/12/24. from. $682* Updated: 3 hours ago. Round trip. I. Economy. See Latest Fare. Houston (HOU) to. London (LHR) 05/09/24 - 05/16/24. from. $687* Updated: 3 hours ago. Round trip. I. Economy. See Latest Fare. keyboard_arrow_right *Fares displayed have been collected within the last 24hrs and …In the past 3 days, the cheapest one-way tickets to London Heathrow Airport from Houston George Bush Airport were found on WestJet ($421) and Iberia ($425), and the lowest … $436 Cheap British Airways flights Houston (IAH) to London (LHR) Prices were available within the past 7 days and start at $436 for one-way flights and $487 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Lufthansa flight deals and tickets from Houston to London (IAH to LHR) from $696 Cheap Flights from Houston to London (IAH-LON) Prices were available within the past 7 days and start at $220 for one-way flights and $500 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Houston to London with no change fee on selected flights. Cheap Flights from IAH to LHR starting at $220 One Way, $490 Round Trip. Prices starting at $490 for return flights and $220 for one-way flights to Heathrow were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply. Wed, Apr 24 - Tue, Sep 24.
Flight carbon footprint between Houston George Bush Intercontinental Airport (IAH) and London Heathrow Airport (LHR) On average, flying from Houston to London generates about 562 kg of CO2 per passenger, and 562 kilograms equals 1 240 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.. How to print on an envelope
Cheap Flights from Houston to London (IAH-LHR) Prices were available within the past 7 days and start at $405 for one-way flights and $501 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Houston to London with no change fee on selected flights. Flight time from Houston to London via Detroit, MI • IAH to LHR via DTW. Flight duration from George Bush Intercontinental Airport to London Heathrow Airport via Detroit Metropolitan Wayne County Airport, United States on Delta Air Lines flight is 11 hours 54 minutes. IAH to DTW. 2 hrs 47 mins. DTW.Flight BA194 from Houston to London is operated by British Airways. Scheduled time of departure from George Bush Intercontinental is 15:35 CDT and scheduled time of arrival in Heathrow is 06:50 BST. The duration of the flight British Airways BA 194 is 9 …2 flights per day. Show price. United Airlines. Star Alliance. Sun. Mon. Tue. Wed. Thu. Fri. Sat. 2 flights per day. Show price. Weekday-labels: HAS FLIGHTS …London. $596 per passenger. Departing Sat, May 4, returning Sat, May 11. Round-trip flight with Spirit Airlines and Fly Play. Outbound indirect flight with Spirit Airlines, departing from Houston George Bush Intercntl. on Sat, May 4, arriving in London Stansted. Cheap Flights from Houston (IAH) to London (LHR) Prices were available within the past 7 days and start at £325 for one-way flights and £473 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Reserve one-way or return flights from Houston to London with no change fee on selected ... Mon, 25 Nov LCY - IAH with Virgin Atlantic. 1 stop. from £591. London. £601 per passenger.Departing Tue, 23 Apr, returning Tue, 30 Apr.Return flight with SWISS.Outbound indirect flight with SWISS, departs from Houston George Bush Intercntl. on Tue, 23 Apr, arriving in London City.Inbound indirect flight with SWISS, departs from London City on ...The cheapest way to get from Houston Airport (IAH) to Edinburgh Airport (EDI) costs only £449, and the quickest way takes just 11¾ hours. Find the travel option that best suits you. ... Flights from Houston to Edinburgh via London Heathrow Ave. Duration 11h 50m When Wednesday, Thursday and Sunday Estimated price £800 - £2,300 ...Mon, 25 Nov LCY - IAH with Virgin Atlantic. 1 stop. from £591. London. £601 per passenger.Departing Tue, 23 Apr, returning Tue, 30 Apr.Return flight with SWISS.Outbound indirect flight with SWISS, departs from Houston George Bush Intercntl. on Tue, 23 Apr, arriving in London City.Inbound indirect flight with SWISS, departs from London City on ...1 day ago · Find airfare and ticket deals for cheap flights from Houston George Bush Intcntl Airport (IAH) to London Heathrow Airport (LHR). Search flight deals from various travel partners with one click at $325. Find United Airlines cheap flights from Houston to Dublin. Enjoy a Houston to Dublin modern flight experience in premium cabins with Wi-Fi. London. $596 per passenger. Departing Sat, May 4, returning Sat, May 11. Round-trip flight with Spirit Airlines and Fly Play. Outbound indirect flight with Spirit Airlines, departing from Houston George Bush Intercntl. on Sat, May 4, arriving in London Stansted.What is the cheapest flight from Houston George Bush Intcntl Airport to London Stansted Airport? In the last 3 days, the lowest price for a flight from Houston George Bush Intcntl …Discover our best Singapore Airlines flight from Houston IAH to London LHR. To find the best deals on flights to Houston from London with Singapore Airlines, just enter your travel dates, filter by Singapore Airlines, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.The easy way to find cheap flights to London LHR from Houston IAH with Finnair To find a cheap Finnair flight from Houston IAH to London LHR, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise , if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. Cheap Flights from Houston (IAH) to London (LHR) Prices were available within the past 7 days and start at £325 for one-way flights and £473 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Reserve one-way or return flights from Houston to London with no change fee on selected ... There are 2 airlines that fly nonstop from London Heathrow Airport to Houston George Bush Intcntl Airport. They are British Airways and United Airlines. The cheapest airline for this route is United Airlines, with the best one-way deal found costing $649. On average, the best prices for this route can be found at United Airlines.$478 Cheap American Airlines flights Houston (IAH) to London (LHR) Prices were available within the past 7 days and start at $478 for one-way flights and $659 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Roundtrip..