LON - IAH

$547 Find Cheap Flights from London to Houston George Bush Airport - Compare and Save

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Everything you should know

Cheapest round-trip
$726
Typical prices: $944-$1,429
Multiple Airlines
Sat 12/1Sun 12/9
LHR - IAH • 2 stops
Cheapest non-stop
$877
Typical prices: $1,067-$1,495
Lufthansa
Tue 3/6Wed 3/7
LHR - IAH • Non-stop
Advice from real travelers
BA economy fares include a carry-on bag, helping avoid extra fees.
For more comfort, Lufthansa Premium Economy adds space and an extra checked bag.
Expert advice
+1
Expert advice
+1
Nonstop flights
You can fly direct with United Airlines and British Airways. Average duration is 10h 34m
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 26% average savings
Most popular
Insights
Insights
Avoid delays
Most punctual • 90% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 18 weeks in advance save around 27% 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 layover airports
Cheapest • Avg $764 (round-trip)
Shortest trip • 12h 25m (one-way)
Insights
Insights
Start a new search
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We hope you love your trip to Houston George Bush Intcntl Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from London to George Bush Intcntl (LON-IAH)

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

Recent round-trip flight deals from London to George Bush Intcntl

Tue, Dec 1 - Wed, Dec 9
Multiple Airlines Logo
5:50 pm - 5:31 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
29h 41m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
Multiple Airlines Logo
9:41 am - 6:25 amIAH  Houston George Bush Intcntl-LHR London Heathrow
14h 44m1 stop Atlanta Hartsfield-Jackson
$726Multiple Airlines
Wed, Dec 2 - Tue, Dec 8
Multiple Airlines Logo
6:30 am - 5:31 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
17h 01m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
Multiple Airlines Logo
9:41 am - 6:25 amIAH  Houston George Bush Intcntl-LHR London Heathrow
14h 44m1 stop Atlanta Hartsfield-Jackson
$729Multiple Airlines
Wed, Jan 27 - Wed, Jan 27
United Airlines Logo
7:40 am - 3:42 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
14h 02m1 stop Chicago O'Hare Intl
United Airlines Logo
7:00 pm - 10:15 amIAH  Houston George Bush Intcntl-LHR London Heathrow
9h 15mnonstop
$735United Airlines
Thu, Jan 28 - Thu, Jan 28
United Airlines Logo
10:00 am - 2:35 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
10h 35mnonstop
United Airlines Logo
5:10 pm - 12:00 pmIAH  Houston George Bush Intcntl-LHR London Heathrow
12h 50m1 stop Chicago O'Hare Intl
$735United Airlines
Mon, Jan 25 - Mon, Feb 1
JetBlue Logo
8:05 am - 4:50 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
14h 45m1 stop New York John F Kennedy Intl
JetBlue Logo
11:32 am - 9:30 amIAH  Houston George Bush Intcntl-LHR London Heathrow
15h 58m1 stop New York John F Kennedy Intl
$745JetBlue
Tue, Jan 26 - Tue, Feb 2
JetBlue Logo
7:25 am - 4:50 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
15h 25m1 stop New York John F Kennedy Intl
JetBlue Logo
11:32 am - 9:30 amIAH  Houston George Bush Intcntl-LHR London Heathrow
15h 58m1 stop New York John F Kennedy Intl
$745JetBlue
Wed, Jan 27 - Sun, Jan 31
British Airways Logo
9:35 am - 2:05 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
10h 30mnonstop
British Airways Logo
3:50 pm - 6:50 amIAH  Houston George Bush Intcntl-LHR London Heathrow
9h 00mnonstop
$763British Airways
Tue, Jan 26 - Mon, Feb 1
British Airways Logo
3:25 pm - 7:55 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
10h 30mnonstop
British Airways Logo
3:50 pm - 6:50 amIAH  Houston George Bush Intcntl-LHR London Heathrow
9h 00mnonstop
$763British Airways
Sat, Mar 6 - Sun, Mar 7
Lufthansa Logo
1:35 pm - 8:36 amLHR  London Heathrow-IAH Houston George Bush Intcntl
25h 01m2 stops Chicago O'Hare Intl Atlanta Hartsfield-Jackson
Lufthansa Logo
4:30 pm - 12:00 pmIAH  Houston George Bush Intcntl-LHR London Heathrow
13h 30m1 stop Chicago O'Hare Intl
$790Lufthansa
Tue, Jan 19 - Wed, Jan 20
Lufthansa Logo
3:20 pm - 11:01 amLHR  London Heathrow-IAH Houston George Bush Intcntl
25h 41m1 stop Los Angeles
Lufthansa Logo
4:30 pm - 7:40 amIAH  Houston George Bush Intcntl-LHR London Heathrow
9h 10mnonstop
$824Lufthansa
Booking Insights

Price, demand and travel trends for London 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 is the cheapest London to Houston George Bush Intcntl Airport flight route?

London Southend Airport (SEN) to Houston George Bush Intcntl Airport (IAH) is the cheapest London to Houston George Bush Intcntl Airport route, averaging $770 round-trip. Other London to Houston George Bush Intcntl Airport routes average $1,102, based on KAYAK data over the past 12 months.

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

•February is the cheapest month to fly from London to Houston George Bush Intcntl Airport at $945 round-trip.
•August ($1,547) and July ($1,368) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 63% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from London to Houston George Bush Intcntl Airport are cheapest 18 weeks before departure. Booking in this window typically costs about 27% 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 London to George Bush Intcntl

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

Marisa Garcia

Expert on Iberia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

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 on the sea, likely en route to Antarctica or the Arctic.

Duncan Madden

Duncan Madden

Expert on British Airways and LHR

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 traveled to more than 50 countries across six continents.

John Walton

John Walton

Expert on IAH

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Key details for London to Houston George Bush Intcntl Airport flights

Low season

September

Cheapest flight

$547
Beat the crowds with an average 14% drop in travelers.
The most popular month to fly with an average 13% increase in travelers.
One-way flight from London Stansted Airport to Houston George Bush Intcntl Airport

When to book flights from London to George Bush Intcntl

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

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

Insights shared by verified travelers who flew the route from London to George Bush Intcntl 
AndreaFlew with United Airlines-Apr 2026
Flight connections can be risky with a 2:45-hour gap. Be aware that the Houston airport is very busy.
WarrenFlew with United Airlines-Jan 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 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 to Houston George Bush Intcntl Airport?

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

    • Earliest: departs at 9:35 am and lands at 8:09 pm
    • Latest: departs at 3:25 pm and lands at 1:59 am.

    The flight takes about 10h 34m.

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

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

    A nonstop flight from London to Houston George Bush Intcntl Airport takes 10h 34m, covering 4,833 miles.

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

    Round-trip flights from London to Houston George Bush Intcntl Airport range from $944 to $1,429, with an average of $1,189 over the past 12 months. Anything below $944 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 19% above the $1,189 route average. Book 18 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from London to Houston George Bush Intcntl Airport?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $764 round-trip via Orlando (MCO), compared to $1,251 for nonstop.

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

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $55–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

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

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

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

    One-way fares from London to Houston George Bush Intcntl Airport are currently lower than usual. Average one-way flight prices are about $756, which is 22% below the typical average for this route.

  • What car rental options are available at Houston George Bush Intcntl Airport (IAH)?

    Houston George Bush Intcntl Airport (IAH) hosts 5 major car rental companies, with daily rates averaging $40 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 to Houston George Bush Intcntl Airport?

    Flights from London to Houston George Bush Intcntl Airport may depart from several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN). Flights usually arrive at Houston George Bush Intcntl (IAH).

  • What time of day has the fewest delays on flights from London 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 from London 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 to Houston George Bush Intcntl Airport route, 14% of flights were delayed in the past 3 months, with delays averaging 2h 34m.

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

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

    • New York John F Kennedy Intl (JFK) - 39% of one-stop connections
    • Boston Logan Intl (BOS) - 30% of one-stop connections
    • Istanbul (IST) - 12% of one-stop connections
    • Orlando (MCO) - 9% of one-stop connections

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

    Yes. Flexible dates can save you up to 10% on flights from London to Houston George Bush Intcntl Airport. Wednesday is the cheapest departure day at $1,160 round-trip on average, while Sunday is the most expensive at $1,279, a difference of $119.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

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

    • United Airlines
    • British Airways

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

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

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

    Houston George Bush Intcntl Airport is 6 hours behind London (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 George R. Brown Convention Center, Daikin Park 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 to Houston George Bush Intcntl Airport flights?

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

    • Iberia: offers free seat selection
    • United Airlines: offers free seat selection
    • Brussels Airlines: offers extra legroom
    • 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 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
    • Finnair: a cabin bag and a checked bag in Economy Class

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

  • How can I travel from IAH to Houston downtown?

    The airport is located to the north of the city and is about 23 miles away from the downtown area. Although there are no buses or trains that can take you directly into the city, you’ll find taxis that can. You’ll find the taxi ranks outside terminals A, B, C, and E. You can expect to pay around $57 (£42) for a one-way ride from the airport to downtown.

  • Are there any hotels on-site?

    Yes, you can find the Houston Airport Marriott at the airport, which is located between terminals B and C. To make your stay really easy you can use the underground train service that runs from the hotel to all of the airport’s airline gates. There are more than 20 other hotels within 3 miles of the airport and some of them offer airport pick-ups and drop-offs.

  • What mobility options does IAH offer?

    There are Aira services for BLV and you can also find service animal relief areas within the airport at terminals B, C, D, and E. All of the inter-terminal connector trains are wheelchair friendly. You can also always download their Access Houston Airports app for free before flying, which can be particularly helpful if you are travelling with someone with a developmental disability.

  • Are there any currency exchange offices at the airport?

    There are several exchange offices in terminals B, C, D and E for you to exchange your cash for into the local dollar, convenient if you didn’t have time to exchange your money before you left. They are open between 7:30 and 21:00, within the scheduled hours for all international flights. You also have the option of withdrawing money from ATMs at every terminal.

  • What are the immigration procedures like on arrival?

    Flying from London, you will land into Terminal D or Terminal E and continue to the Immigration Hall. Here you have two options of being processed, either by an immigration officer or at the Global Entry Trusted Traveller Network Program kiosk, which is reserved for members only. If you only have carry-on luggage, then you can exit the Immigration and Passport Control hall using the OneStop shortcut.

Your guide to booking London 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 $1,160, about $119 less than Sunday fares (9% 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 27% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your London to Houston George Bush Intcntl Airport trip for February. Fares historically average $945 round-trip in that month - typically $602 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 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 Orlando Airport (MCO) can be cheaper than flying direct. The cheapest layover option averages $764 round-trip on this route - about $487 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
  • On arrival at Houston George Bush Intercontinental Airport (IAH), jump on the free shuttle services Skyway and Subway, which connect all 5 of the terminals. Skyway travels inside the security and Subway outside security.
  • If you decide to fly with KML Crown Airlines then you can enjoy their lounges and complimentary services at LHR, LGW and LCY airports.
  • You’ll find that flights to IAH from London Heathrow are more frequent than from the other London airports and that LHR offers more direct flight options.
  • If you fly from London Heathrow to IAH Airport with either Finnair, British Airways, or Lufthansa then you have the option to fly direct.
  • Within IAH airport, you can find several staffed information booths by luggage reclaim and in the International Arrivals Hall and they are open from 8:00 to18:00.
  • There are also many interactive visitor kiosks throughout the airport in Houston that’ll help you to find information about services, hotels, public transport options and maps.

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

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

Direct departures

London 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

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 London to George Bush Intcntl

Complete your trip to Houston with a hotel stay or car rental