LHR - IAH

£409 Find Cheap Flights from London Heathrow Airport to Houston George Bush Airport – Compare and Save

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Everything you should know

Cheapest return flight
£569
Typical prices: £730-£1,078
Multiple Airlines
Wed 21/11Sun 9/12
LHR - IAH • 3 stops
Cheapest direct flights
£570
Typical prices: £801-£1,114
British Airways
Fri 26/1Sun 4/2
LHR - IAH • Direct
Direct flights
You can fly direct with United Airlines and British Airways. Average duration is 10h 33m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 90% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 18 weeks in advance save around 29% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg £645 (return)
Shortest trip • 12h 25m (one-way)
Insights
Insights
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We hope you enjoy your trip to Houston George Bush Intcntl Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Heathrow to George Bush Intcntl (LHR-IAH)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to George Bush Intcntl

Sat, 21 Nov - Wed, 9 Dec
Multiple Airlines Logo
12:15 - 08:22LHR  London Heathrow-IAH Houston George Bush Intcntl
26h 07m3 stops Reykjavik Keflavik Intl Orlando Chicago O'Hare Intl
Multiple Airlines Logo
06:00 - 19:30IAH  Houston George Bush Intcntl-LHR London Heathrow
31h 30m3 stops Denver Intl Orlando Reykjavik Keflavik Intl
£569Multiple Airlines
Tue, 26 Jan - Thu, 4 Feb
British Airways Logo
09:35 - 14:05LHR  London Heathrow-IAH Houston George Bush Intcntl
10h 30mdirect
British Airways Logo
15:50 - 06:50IAH  Houston George Bush Intcntl-LHR London Heathrow
9h 00mdirect
£570British Airways
Fri, 20 Nov - Mon, 7 Dec
Multiple Airlines Logo
06:20 - 08:44LHR  London Heathrow-IAH Houston George Bush Intcntl
32h 24m2 stops Paris Charles de Gaulle Miami
Multiple Airlines Logo
10:57 - 06:30IAH  Houston George Bush Intcntl-LHR London Heathrow
13h 33m1 stop Miami
£570Multiple Airlines
Fri, 4 Dec - Fri, 11 Dec
Scandinavian Airlines Logo
06:40 - 00:07LHR  London Heathrow-IAH Houston George Bush Intcntl
23h 27m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
10:07 - 16:00IAH  Houston George Bush Intcntl-LHR London Heathrow
23h 53m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
£584Scandinavian Airlines
Wed, 18 Nov - Fri, 11 Dec
Scandinavian Airlines Logo
06:40 - 21:59LHR  London Heathrow-IAH Houston George Bush Intcntl
21h 19m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
10:07 - 16:00IAH  Houston George Bush Intcntl-LHR London Heathrow
23h 53m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
£584Scandinavian Airlines
Tue, 24 Nov - Wed, 25 Nov
United Airlines Logo
07:30 - 18:15LHR  London Heathrow-IAH Houston George Bush Intcntl
16h 45m1 stop Frankfurt am Main
United Airlines Logo
12:40 - 11:15IAH  Houston George Bush Intcntl-LHR London Heathrow
16h 35m1 stop San Francisco
£590United Airlines
Mon, 1 Mar - Mon, 1 Mar
Lufthansa Logo
07:30 - 18:15LHR  London Heathrow-IAH Houston George Bush Intcntl
16h 45m1 stop Frankfurt am Main
Lufthansa Logo
22:10 - 07:25IAH  Houston George Bush Intcntl-LHR London Heathrow
27h 15m1 stop San Francisco
£590Lufthansa
Wed, 27 Jan - Wed, 27 Jan
United Airlines Logo
09:30 - 18:15LHR  London Heathrow-IAH Houston George Bush Intcntl
14h 45m1 stop Frankfurt am Main
United Airlines Logo
22:03 - 07:25IAH  Houston George Bush Intcntl-LHR London Heathrow
27h 22m1 stop San Francisco
£601United Airlines
Mon, 1 Mar - Mon, 1 Mar
Lufthansa Logo
10:00 - 14:35LHR  London Heathrow-IAH Houston George Bush Intcntl
10h 35mdirect
Lufthansa Logo
19:55 - 07:25IAH  Houston George Bush Intcntl-LHR London Heathrow
29h 30m1 stop San Francisco
£616Lufthansa
Mon, 23 Nov - Mon, 30 Nov
British Airways Logo
09:35 - 14:05LHR  London Heathrow-IAH Houston George Bush Intcntl
10h 30mdirect
British Airways Logo
15:50 - 06:50IAH  Houston George Bush Intcntl-LHR London Heathrow
9h 00mdirect
£705British Airways
Booking Insights

Price, demand, and travel trends for London Heathrow Airport to Houston George Bush Intcntl Airport flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from London Heathrow Airport to Houston George Bush Intcntl Airport?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from London Heathrow Airport to Houston George Bush Intcntl Airport. It’s 3% cheaper than the average day, while Sunday is the most expensive, with prices 7% higher.

What is the cheapest month to fly from London Heathrow Airport to Houston George Bush Intcntl Airport?

•January is the cheapest month to fly from London Heathrow Airport to Houston George Bush Intcntl Airport at £715 return.
•August (£1,178) and July (£1,045) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 64% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from London Heathrow Airport to Houston George Bush Intcntl Airport the cheapest?

Flights from London Heathrow Airport to Houston George Bush Intcntl Airport are cheapest 18 weeks before departure. Booking in this window typically costs about 29% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Heathrow to George Bush Intcntl

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has travelled to more than 50 countries across six continents.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.

Gabriel Leigh

Gabriel Leigh

Expert on Finnair

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Key details for London Heathrow Airport to Houston George Bush Intcntl Airport flights

Low season

December

Cheapest flight

£409
Beat the crowds with an average 13% drop in traveller numbers.
The most popular month to fly with an average 16% increase in traveller numbers.
One-way flight from London Heathrow Airport to Houston George Bush Intcntl Airport

When to book flights from Heathrow to George Bush Intcntl

Are your dates flexible? Find out the best times to travel from Heathrow to George Bush Intcntl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Flights from Heathrow to George Bush Intcntl: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Heathrow to George Bush Intcntl 
AndreaFlew with United AirlinesApr 2026
Flight connections can be risky with a 2:45-hour gap. Be aware that the Houston airport is very busy.
WarrenFlew with United AirlinesJan 2024
The ground transportation situation (Uber, taxis) at International Arrivals (Terminals D/E) is frankly pathetic for a major American city. Way too many people and cars for the allotted space. I would recommend taking the mini-train to another terminal (A,B or C) and getting an Uber there, rather than trying to navigate International.

Your London Heathrow Airport to Houston George Bush Intcntl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from London Heathrow Airport to Houston George Bush Intcntl Airport?

    These are the earliest and latest flight times available from London Heathrow Airport to Houston George Bush Intcntl Airport:

    • Earliest: departs at 09:10 and lands at 19:43
    • Latest: departs at 15:25 and lands at 01:58.

    The flight takes about 10h 33m.

  • Which cabin classes can I book on flights from London Heathrow Airport to Houston George Bush Intcntl Airport?

    Four cabin classes are available on flights from London Heathrow Airport to Houston George Bush Intcntl Airport:

    • Economy class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from London Heathrow Airport to Houston George Bush Intcntl Airport?

    A direct flight from London Heathrow Airport to Houston George Bush Intcntl Airport takes 10h 33m, covering 4,820 miles.

  • Do I need a passport to fly from London Heathrow Airport to Houston George Bush Intcntl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a London Heathrow Airport to Houston George Bush Intcntl Airport flight?

    Return flights from London Heathrow Airport to Houston George Bush Intcntl Airport range from £730 to £1,078, with an average of £902 over the past 12 months. Anything below £730 counts as a good deal.

  • How expensive are last-minute London Heathrow Airport to Houston George Bush Intcntl Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 19% above the £902 route average. Book 18 weeks before departure for the lowest fares.

  • How much can I save by having a stopover when flying from London Heathrow Airport to Houston George Bush Intcntl Airport?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average £645 return via Newark (EWR), compared with £932 for direct.

  • What is the standard checked bag allowance on flights from London Heathrow Airport to Houston George Bush Intcntl Airport?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £41–£75 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from London Heathrow Airport to Houston George Bush Intcntl Airport?

    The Boeing 777 family is used most often on this route, operated mainly by Austrian Airlines and Lufthansa. Other aircraft seen on the route include Boeing 787-9 Dreamliner variants.

  • How are flight departures from London Heathrow Airport to Houston George Bush Intcntl Airport spread across the day?

    Morning is the busiest departure period on London Heathrow Airport to Houston George Bush Intcntl Airport flights, with 50% leaving in that window. Afternoon departures account for 50%, Evening flights for 0%, and Night flights for 0%.

  • Have flight prices from London Heathrow Airport to Houston George Bush Intcntl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £569 to £4,578. That means the highest observed fare was about 8x higher than the lowest one.

  • How are flight prices from London Heathrow Airport to Houston George Bush Intcntl Airport looking right now?

    One-way fares from London Heathrow Airport to Houston George Bush Intcntl Airport are currently lower than usual. Average one-way flight prices are about £547, which is 30% below the typical average for this route.

  • Which car hire options are available at Houston George Bush Intcntl Airport (IAH)?

    Houston George Bush Intcntl Airport (IAH) hosts 5 major car hire companies, with daily rates starting from around £2 for economy cars. Top options include:

    • ACO Rent A Car
    • Easirent
    • America Car Rental
    • Thrifty
    • Hertz

  • Which airports can I use when flying from London Heathrow Airport to Houston George Bush Intcntl Airport?

    Flights from London Heathrow Airport to Houston George Bush Intcntl Airport usually depart from London Heathrow (LHR) and arrive at Houston George Bush Intcntl (IAH).

  • What time of day has the fewest delays on flights from London Heathrow Airport to Houston George Bush Intcntl Airport?

    Morning flights have the fewest delays on this route, while afternoon departures tend to have the most.

  • At what point is a flight considered delayed on the route from London Heathrow Airport to Houston George Bush Intcntl Airport?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the London Heathrow Airport to Houston George Bush Intcntl Airport route, 14% of flights were delayed in the past three months, with delays averaging 2h 34m.

  • Which airports do connecting flights from London Heathrow Airport to Houston George Bush Intcntl Airport pass through?

    One-stop flights from London Heathrow Airport to Houston George Bush Intcntl Airport most commonly connect through:

    • New York John F Kennedy Intl (JFK) – 50% of one-stop connections
    • Boston Logan Intl (BOS) – 32% of one-stop connections
    • Istanbul (IST) – 6% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) – 3% of one-stop connections

  • Can I save money by using flexible dates for flights from London Heathrow Airport to Houston George Bush Intcntl Airport?

    Yes. Flexible dates can save you up to 10% on flights from London Heathrow Airport to Houston George Bush Intcntl Airport. Wednesday is the cheapest departure day at £875 return on average, while Sunday is the most expensive at £968, a difference of £93.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly from London Heathrow Airport to Houston George Bush Intcntl Airport?

    2 airlines operate flights between London Heathrow Airport and Houston George Bush Intcntl Airport. The airlines offering direct flights on this route include:

    • United Airlines
    • British Airways

  • How much time can I save by choosing a different stopover airport from London Heathrow Airport to Houston George Bush Intcntl Airport?

    Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time of 12h 25m, compared to 13h 19m via Chicago O'Hare Intl (ORD) and 13h 24m via Amsterdam Schiphol (AMS).

  • What is the time difference between London Heathrow Airport and Houston George Bush Intcntl Airport?

    Houston George Bush Intcntl Airport is 5 hours behind London Heathrow Airport (Central Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Houston George Bush Intcntl Airport?

    Some of the most popular sights in Houston George Bush Intcntl Airport are NRG Arena, George R. Brown Convention Center, and Houston Stadium. These are among the most viewed places in Houston George Bush Intcntl Airport on KAYAK.

  • Which airlines offer extra legroom and free seat selection on London Heathrow Airport to Houston George Bush Intcntl Airport flights?

    Among airlines operating London Heathrow Airport to Houston George Bush Intcntl Airport flights:

    • Iberia: offers free seat selection
    • United Airlines: offers free seat selection
    • Brussels Airlines: offers extra legroom
    • Austrian Airlines: offers extra legroom; offers free seat selection
    • American Airlines: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on London Heathrow Airport to Houston George Bush Intcntl Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • British Airways: a cabin bag and a checked bag in Economy class
    • Lufthansa: a cabin bag and a checked bag in Economy class
    • Iberia: a cabin bag and a checked bag in Economy class

    Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

  • Which facilities are available at London Heathrow Airport for families with kids?

    If you have kids and you’re travelling through London Heathrow, you can access children’s entertainment to help keep your little ones busy. For instance, in Terminal 2, you can use the Mr Adventure Stay and Play area, which has slides, activity sheets and a soft play area. You can find the play area in Terminal 2A, on the way to Gates 1-6.

  • How can I get from Houston Airport to the city centre?

    You can get from Houston Airport to Houston easily, with there being a couple of options available to you. One of the cheaper options is to take the 102 bus line, which departs from the terminal and takes around 55min to reach the city centre. Alternatively, you can get a taxi from outside the arrivals hall, taking about 25min, but this will cost more.

  • Which hotels are there at Heathrow Airport?

    If you have an early flight to take from Heathrow, then staying at an airport hotel is a good idea. ibis London Heathrow Airport is located only a short walk from the terminal building and offers wake-up calls, so you won’t miss your flight. There’s also Hilton Garden Inn located in Terminal 2.

  • How can I exchange currency at Houston Airport?

    When you land at Houston Airport, you can use a currency exchange office to convert your pound sterling to US dollars. You can access an International Currency Exchange bureau in the main terminal, which is prominently located for your convenience. There are also cashpoint machines available.

Your guide to booking London Heathrow Airport to Houston George Bush Intcntl Airport flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Sunday. On this route, Wednesday flights average £875, about £93 less than Sunday fares (10% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 18 weeks before you fly. On this route, that window historically saves about 29% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your London Heathrow Airport to Houston George Bush Intcntl Airport trip for January. Fares historically average £715 return in that month – typically £463 less than the most expensive month, which is August (based on the last 12 months).
  • For the best chance of arriving on time, fly with United Airlines. Over the past three months, 90% of United Airlines flights from London Heathrow Airport to Houston George Bush Intcntl Airport arrived on time, slightly above the route average of 86%. When flights on this route arrive late, they're delayed by an average of 2h 34m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Newark Airport (EWR) can be cheaper than flying direct. The cheapest stopover option averages £645 return on this route – about £287 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Houston George Bush Intcntl Airport.

    • Houston Airport Marriott at George Bush Intercontinental
  • Ahead of your flight from London Heathrow Airport (LHR), you can use a lounge to relax. For example, Plaza Premium Lounge in Terminal 2, where many of the direct flights to Houston Airport (IAH) depart from, offers refreshments, Wi-Fi and showers for about £40.
  • When you land at Houston George Bush Airport, you can travel to nearby cities easily. For instance, you can drive to Beaumont in about 1h 30min, Austin in around 2h 40min or Waco in approximately 2h 45min.
  • You can travel to Heathrow Airport from the centre of London easily, with there big several options available. You can take the Heathrow Express from London Paddington train station, which takes around 15min. The London Underground Piccadilly Line also operates a direct service to the terminal, with it taking about 45min from a central location like Covent Garden. You are also able to take a taxi from the centre in about 1h, depending on traffic.
  • If you have a mobility issue or a disability, then you can ask for help before you arrive at London Heathrow Airport. You should contact your airline at least 48h before take-off, so they are able to arrange for suitable assistance.
  • If you want to speed up your journey through the security gate at London Heathrow Airport, you can opt for the fast-track service. For about £12.50, you can use the service to jump the queue, so that you have more time to spend in the departures area.

Prefer to fly direct from London Heathrow Airport to Houston George Bush Airport?

 
Find which airlines fly direct from London Heathrow Airport to Houston George Bush Intcntl Airport, which days they fly and book direct flights.

Direct departures

London Heathrow to Houston George Bush Intcntl

Monday

British Airways,United Airlines

British Airways,United Airlines

Tuesday

British Airways,United Airlines

British Airways,United Airlines

Wednesday

British Airways,United Airlines

British Airways,United Airlines

Thursday

British Airways,United Airlines

British Airways,United Airlines

Friday

British Airways,United Airlines

British Airways,United Airlines

Saturday

British Airways,United Airlines

British Airways,United Airlines

Sunday

British Airways,United Airlines

British Airways,United Airlines

See more direct flights

Direct returns

Houston George Bush Intcntl to London Heathrow

Monday

British Airways,United Airlines

British Airways,United Airlines

Tuesday

British Airways,United Airlines

British Airways,United Airlines

Wednesday

British Airways,United Airlines

British Airways,United Airlines

Thursday

British Airways,United Airlines

British Airways,United Airlines

Friday

British Airways,United Airlines

British Airways,United Airlines

Saturday

British Airways,United Airlines

British Airways,United Airlines

Sunday

British Airways,United Airlines

British Airways,United Airlines

See more direct flights

More options for your flight from Heathrow to George Bush Intcntl

Complete your trip to George Bush Intcntl with a hotel stay or car hire