IAH - LON

$332 Find Cheap Flights from Houston George Bush Airport to London - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from George Bush Intcntl to London departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Everything you should know

Cheapest round-trip
$818
Multiple Airlines
Mon 9/14Sun 9/20
IAH - LGW • 1 stop
Cheapest non-stop
$872
Typical prices: $603-$880
Iberia
Wed 10/21Wed 10/28
IAH - LHR • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
British Airways Premium Economy adds extra legroom and priority boarding on this route.
American Main Cabin Extra adds early boarding and free drinks; IAH is simpler off United.
Expert advice
Expert advice
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Nonstop flights
You can fly direct with British Airways and United Airlines. Average duration is 9h 17m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top routes
Cheapest
Most popular
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Avoid delays
Most punctual • 84% on-time
Best time • Fewest delays
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Top layover airports
Cheapest • Avg $562 (round-trip)
Shortest trip • 11h 30m (one-way)
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When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 25% compared to booking last minute.
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When to travel
Cheapest • 20% price drop
Most popular
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from George Bush Intcntl 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 may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Mon, Sep 14 - Sun, Sep 20
Multiple Airlines Logo
12:21 pm - 10:00 am
IAH
-
LGW
15h 39m
1 stop
Multiple Airlines Logo
2:00 pm - 9:26 am
LGW
-
IAH
25h 26m
1 stop
$818Multiple Airlines
Tue, Oct 13 - Tue, Oct 20
Multiple Airlines Logo
12:00 pm - 3:00 pm
IAH
-
LGW
21h 00m
2 stops
Multiple Airlines Logo
2:30 pm - 1:35 pm
LGW
-
IAH
29h 05m
3 stops
$819Multiple Airlines
Mon, Sep 21 - Tue, Oct 6
Turkish Airlines Logo
9:15 pm - 9:55 am
IAH
-
STN
30h 40m
1 stop
Turkish Airlines Logo
5:35 pm - 7:20 pm
STN
-
IAH
31h 45m
1 stop
$839Turkish Airlines
Mon, Sep 21 - Tue, Oct 6
Turkish Airlines Logo
2:30 pm - 4:40 pm
IAH
-
STN
20h 10m
1 stop
Turkish Airlines Logo
6:55 am - 7:20 pm
STN
-
IAH
18h 25m
1 stop
$839Turkish Airlines
Tue, Oct 27 - Fri, Oct 30
United Airlines Logo
6:10 pm - 11:50 am
IAH
-
LHR
36h 40m
1 stop
United Airlines Logo
6:35 am - 5:20 pm
LHR
-
IAH
15h 45m
1 stop
$858United Airlines
Mon, Nov 23 - Thu, Nov 26
United Airlines Logo
6:10 pm - 11:50 am
IAH
-
LHR
35h 40m
1 stop
United Airlines Logo
6:35 am - 4:20 pm
LHR
-
IAH
15h 45m
1 stop
$858United Airlines
Sun, Dec 6 - Tue, Dec 22
Virgin Atlantic Logo
3:25 pm - 8:50 pm
IAH
-
LHR
23h 25m
1 stop
Virgin Atlantic Logo
6:20 am - 4:50 pm
LHR
-
IAH
16h 30m
1 stop
$865Virgin Atlantic
Mon, Sep 21 - Tue, Oct 6
Delta Logo
4:58 pm - 11:20 am
IAH
-
LHR
12h 22m
1 stop
Delta Logo
6:30 am - 1:20 pm
LHR
-
IAH
12h 50m
1 stop
$869Delta
Mon, Sep 21 - Tue, Oct 6
Delta Logo
4:58 pm - 11:20 am
IAH
-
LHR
12h 22m
1 stop
Delta Logo
6:30 am - 1:20 pm
LHR
-
IAH
12h 50m
1 stop
$871Delta
Mon, Nov 23 - Wed, Dec 2
Virgin Atlantic Logo
11:50 am - 7:50 am
IAH
-
LHR
14h 00m
1 stop
Virgin Atlantic Logo
8:25 pm - 1:25 pm
LHR
-
IAH
23h 00m
1 stop
$872Virgin Atlantic
Booking Insights

KAYAK's insights & trends for George Bush Intcntl to London flights

Get data-powered insights and trends into flights from George Bush Intcntl to London to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Houston George Bush Intcntl Airport to London?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Houston George Bush Intcntl Airport to London departing in September.

Flight prices are typical for this route right now.

Flights to London from Houston George Bush Intcntl Airport usually cost between $575 and $937 in September.
The lowest price found in the past 5 days was $818 on Multiple Airlines (Sep 14-Sep 20).

What is the cheapest Houston George Bush Intcntl Airport to London flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Houston George Bush Intcntl Airport to London costs $810 on the route between Houston George Bush Intcntl Airport (IAH) and London Heathrow Airport (LHR). It is also the most popular route.

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

The average price of all round-trip flights from Houston George Bush Intcntl Airport to London clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to London on a Wednesday and more expensive on a Friday. On your return trip to Houston George Bush Airport, you should consider flying back on a Sunday, and avoid Tuesdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Houston George Bush Intcntl Airport to London, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Houston George Bush Intcntl Airport to London is January, where tickets cost $700 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,419 and $1,200 respectively.

Can I save money by flying with a layover from Houston George Bush Intcntl Airport to London?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $1,061 on average.

How far in advance should I book a flight from Houston George Bush Intcntl Airport to London?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Houston George Bush Intcntl Airport to London, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Houston George Bush Intcntl Airport to London, you should book around 3 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Expert advice

Expert advice for your flight from George Bush Intcntl to London

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
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.

Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

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.

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.

Good to know

Low season

January

Cheapest flight

$332
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 67% increase in price.
Flight from Houston George Bush Airport to London Heathrow Airport

When to book flights from George Bush Intcntl to London

Are your dates flexible? Find out the best times to travel from George Bush Intcntl to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

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

Insights shared by verified travelers who flew the route from George Bush Intcntl to London 
AndrewFlew with United Airlines
IAH
-
LHR
Jul 2025
United really looked after me, just make sure you arrive good and early to ensure an unpressurised check in
Verified travelerFlew with British Airways
IAH
-
LHR
May 2025
Heathrow has good signage. There are lots of people going to the same terminal waiting for the train. Be patient and when you have connecting flights choose a 2-hour layover.
JamesFlew with American Airlines
IAH
-
LHR
Apr 2025
Try to avoid Heathrow! Not the most convenient to get into London unless you have a driver. Also, Heathrow needs better signs on where to go to exit and better wifi for foreign travelers.

FAQs for booking Houston George Bush Airport to London flights

  • Which London airport should I fly into?

    Gatwick is the overall most convenient option. It has better accessibility, it's easy to navigate, and it features budget and regular airlines. Still, Heathrow stands as an excellent option if you want to catch an international flight from there. If you’re traveling for business, London City is the closest to Downtown London and has a business-oriented vibe, while the rest of the airports are better for budget airlines.

  • What is the quickest travel mode from London Heathrow (LHR) to Central London?

    The Heathrow Express train is the quickest mode of transport from LHR to the London city center. You’ll board from Terminal 2, 3, or 5 and take about 15min to the city. You can also use the underground train accessible from Terminals 2 and 3 between the pedestrian subway and Terminals 4 and 5 through the lift or escalators.

  • Does George Bush International Airport offer any services for families?

    If you’re traveling with kids, George Bush International Airport offers several nursing rooms and nurseries in different terminals. With older kids, you can rise the Skyway inter-terminal train as you wait for your flight. Alternatively, you can go check out the airport’s art collection that includes sculptures to photographs placed throughout the airport's terminals, including Terminal A, B, C, D, and E.

  • What services are available for passengers with limited mobility at London Gatwick (LGW)?

    LGW has several services for people with reduced mobility, including wider access paths, ramps, wheelchairs, buggies, assistance lanes, and special toilet facilities.

  • Which is the best way to get to Houston George Bush Intercontinental Airport (IAH) from downtown Houston?

    IAH lies about 18.8 miles from the city center of Houston, and there are various transportation options to get you there. However, the Metro 102 Bush IAH Express provides the most convenient way to commute between the two destinations, covering the distance in about 46min.

  • Which is the best arrival airport if I want to visit Buckingham Palace?

    You can arrive at Buckingham Palace from either London Heathrow Airport (LHR) or Gatwick Airport (LGW), as both facilities offer direct train and subway connections to Buckingham Palace. LGW provides a quicker connection to the palace as it sits about a drive away 45min away from LHR, which is approximately a 1h drive away.

  • Where can I store my extra luggage at London Heathrow Airport (LHR)?

    If you want to leave behind your excess bags as you tour London, remember that there are storage lockers at every terminal of this establishment. If you’re using Terminal 1, you’ll find them on the lower level of the International Arrivals foyer. Check with the attendant regarding the minimum and maximum storage duration.

  • Are there car rentals at Gatwick Airport (LGW)?

    Several car rental agencies run their desks at LGW. You can locate their pick-up garages at the North and South Terminals of the airport. Consider making early reservations if you’re keen to get cheaper rates.

  • What is the cheapest flight from Houston George Bush Intcntl Airport to London?

    In the last 5 days, the lowest price for a flight from Houston George Bush Intcntl Airport to London was $332 for a one-way ticket and $818 for a round-trip.

  • Do I need a passport to fly between Houston George Bush Airport and London?

    Yes, you’ll need a passport to travel to London from Houston George Bush Airport.

  • Which airports will I be using when flying from Houston George Bush Airport to London?

    On your way to London, you’ll fly out from Houston George Bush Intcntl. You’ll be landing in one of London’s 5 airports: London City, London Gatwick, London Heathrow, London Luton, or London Stansted.

  • Which airlines offer Wi-Fi service onboard planes from Houston George Bush Airport to London?

    Only American Airlines offers inflight Wi-Fi service on the Houston George Bush Airport to London flight route.

  • Which aircraft models fly most regularly from Houston George Bush Airport to London?

    The Boeing 777 is the aircraft model that flies most regularly on the Houston George Bush Airport to London flight route.

  • Which airline alliances offer flights from Houston George Bush Airport to London?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Houston George Bush Airport and London, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Houston George Bush Airport to London?

    There are nonstop flights from Houston George Bush Airport to London on a daily basis.

  • Which is the best airline for flights from Houston to London, Finnair or Austrian Airlines?

    The two airlines most popular with KAYAK users for flights from Houston to London are Finnair and Austrian Airlines. With an average price for the route of $908 and an overall rating of 7.6, Finnair is the most popular choice. Austrian Airlines is also a great choice for the route, with an average price of $974 and an overall rating of 7.6.

  • How does KAYAK find such low prices on flights from Houston George Bush Airport to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Houston George Bush Airport to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Houston George Bush Airport to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Houston George Bush Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Houston George Bush Airport to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Houston George Bush Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Houston George Bush Airport to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Houston George Bush Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Houston George Bush Intcntl Airport to London

  • Looking for a cheap flight? 25% of our users found flights on this route for $464 or less one-way and $1,007 or less round-trip.
  • If you're arranging a flight from Houston, Texas, to London, book your flight from the George Bush International Airport (IAH). If you drive yourself there, you can park your car at all five terminals on Terminal Road for about $15 per day. You'll also find cheaper rates at EcoPark parking lots outside the airport on John F. Kennedy Blvd.
  • 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. If you're looking for the shortest trip, fly into London Heathrow or London City Airport. Both airports have more flight options that make only one layover.
  • If you’re looking to fly from Houston to London non-stop, you’ll find multiple flights by Lufthansa and Delta at George Bush International Airport (IAH). Other airlines that offer flights to London from IAH include United Airlines, KLM, Lufthansa, JetBlue, and Alaska Airlines.
  • George Bush International Airport is a hub for United Airlines and a focus city for Spirit Airlines. London Heathrow is a hub for British Airways and a base for Virgin Atlantic. London Stansted a hub for RyanAir, and London Gatwick a hub for British Airways.
  • If you arrive late in London, Heathrow has several on-site hotels, including Hilton, Aerotel, Yotel, and Sofitel. Gatwick also has several hotels connected to the terminals, namely, Hampton by Hilton, Hilton, Sofitel, Premier Inn North, and Courtyard by Marriott.
  • If you’re looking to relax and get a drink as you wait for your flight at George Bush International Airport, American Airlines, KLM, Air France, and United Airlines all have lounges at the airport. There’s also a Centurion Lounge where you'll find extra complimentary services like a premium bar, snacks, and a family room.
  • Houston George Bush Intercontinental Airport (IAH ) features five terminals; A, B, C, D, and E. Travelers with connecting flights can move from one terminal to the next without re-entering security via a Skyway, an elevated train that links the terminals. For those arriving and who want to connect to their hotels, a subway (underground train) is handy in inter-terminal transfer.
  • If you'll be arriving from Houston George Bush Intercontinental Airport (IAH) through Gatwick Airport (LGW), spare time and experience some of the artwork in this facility. Suppose you'll be using the southern terminal, you won't the unique mosaic celebrating Her Majesty’s Diamond Jubilee. It's a fusion of about 5,500 photos of people from Surrey, Kent, and Sussex.
  • Travelers who feel weary before their flights from IAH to London have various outlets at their disposal for some therapy. This facility offers numerous spas and parlors to offer much-needed relaxation and self-indulgence. For instance, the XpreSpa provides deep tissue massage, manicures, and pedicures. You can locate it in Terminal A Near, 2800 N Terminal Rd.
  • Those flying aboard British Airways from Houston George Bush Intercontinental Airport to London should remember that the carriers allow them to bring service dogs in the cabin. However, the dog must bear the relevant health documentation and valid vaccination certificates. Any other emotional support pet travels in the hold.
  • Passengers who want to pray before their voyage from Houston to London will find two prayer rooms at this establishment. If you’re using Terminal C, you can locate it on the South side West concourse across from Gate 33A. Those using Terminal D will find this sacred sanctuary near gate D9.

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

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Houston George Bush Intcntl to London.
Find which airlines fly direct from Houston George Bush Intcntl Airport to London, which days they fly and book direct flights.

Direct departures

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

Direct returns

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

Aer Lingus,British Airways,United Airlines

Aer Lingus,British Airways, +1 more

Saturday

British Airways,United Airlines

British Airways,United Airlines

Sunday

British Airways,United Airlines

British Airways,United Airlines

See more direct flights

Everything you need to know for your flight from George Bush Intcntl to London

Other airlines flying from George Bush Intcntl to London

Flights from the other most popular airlines that fly from George Bush Intcntl to London according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.