£337 Cheap Flights from Houston (IAH) to London (LGW)

View £337 flight on Sun, 26 Jul 2026Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Gatwick Airport (LGW)

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Cheap Flights from Houston (IAH) to London (LGW)

Prices were available within the past 7 days and start at £337 for one-way flights and £616 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, 24 Aug - Mon, 31 Aug
IAH
Houston
LGW
London
£616 Return, found 5 days ago
£616
Return
found 5 days ago
Select American Airlines flight, departing Mon, 24 Aug from Houston to London, returning Mon, 31 Aug, priced at £616 found 5 days ago
American Airlines
Wed, 6 May - Fri, 4 Sept
IAH
Houston
LGW
London
£632 Return, found 4 days ago
£632
Return
found 4 days ago
Select American Airlines flight, departing Wed, 6 May from Houston to London, returning Fri, 4 Sept, priced at £632 found 4 days ago
American Airlines
Tue, 18 Aug - Tue, 1 Sept
IAH
Houston
LGW
London
£633 Return, found 1 day ago
£633
Return
found 1 day ago
Select American Airlines flight, departing Tue, 18 Aug from Houston to London, returning Tue, 1 Sept, priced at £633 found 1 day ago
American Airlines
Wed, 13 May - Tue, 19 May
IAH
Houston
LGW
London
£634 Return, found 7 hours ago
£634
Return
found 7 hours ago
Select American Airlines flight, departing Wed, 13 May from Houston to London, returning Tue, 19 May, priced at £634 found 7 hours ago
American Airlines
Fri, 8 May - Fri, 22 May
IAH
Houston
LGW
London
£642 Return, found 5 days ago
£642
Return
found 5 days ago
Select American Airlines flight, departing Fri, 8 May from Houston to London, returning Fri, 22 May, priced at £642 found 5 days ago
Iberia
Wed, 13 May - Tue, 19 May
IAH
Houston
LGW
London
£643 Return, found 7 hours ago
£643
Return
found 7 hours ago
Select Iberia flight, departing Wed, 13 May from Houston to London, returning Tue, 19 May, priced at £643 found 7 hours ago
Delta
Tue, 18 Aug - Tue, 1 Sept
IAH
Houston
LGW
London
£649 Return, found 1 day ago
£649
Return
found 1 day ago
Select Delta flight, departing Tue, 18 Aug from Houston to London, returning Tue, 1 Sept, priced at £649 found 1 day ago
KLM
Tue, 18 Aug - Fri, 28 Aug
IAH
Houston
LGW
London
£649 Return, found 1 day ago
£649
Return
found 1 day ago
Select KLM flight, departing Tue, 18 Aug from Houston to London, returning Fri, 28 Aug, priced at £649 found 1 day ago
Delta
Wed, 21 Oct - Thu, 29 Oct
IAH
Houston
LGW
London
£650 Return, found 11 hours ago
£650
Return
found 11 hours ago
Select Delta flight, departing Wed, 21 Oct from Houston to London, returning Thu, 29 Oct, priced at £650 found 11 hours ago
Air France
Wed, 21 Oct - Thu, 29 Oct
IAH
Houston
LGW
London
£650 Return, found 11 hours ago
£650
Return
found 11 hours ago
Select Air France flight, departing Wed, 21 Oct from Houston to London, returning Thu, 29 Oct, priced at £650 found 11 hours ago

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Heathrow LHR. Cheapest option available. Average driving time to city centre is 28 minutes. Flights from £674
LHR
Heathrow
Cheapest
Average driving time to city centre28 min
Flights from £674

Frequently asked questions

How much is a flight from Houston Airport to London Gatwick?
Based on fares listed within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from George Bush Intercontinental Airport (IAH) to London Gatwick start from £616. Make your booking ASAP to secure the best price for your journey. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Houston Airport to Gatwick Airport (LGW)?
This can vary between airlines, as each has its own terms and conditions. Visit the Customer Service Portal, where you'll find simple instructions on how to cancel online.
How do I find cheap flights from IAH to LGW that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for George Bush Intercontinental Airport (IAH) to LGW flights, you'll see a "no change fees" filter for you to select.
How far is the flight from George Bush Intercontinental Airport (IAH) to LGW?
The distance is around 7,800 kilometres. Sleep mask? Check. Warm clothes? Check. We suggest you pack all the essentials for this long-haul Houston to Gatwick flight.
Which airlines fly direct from IAH to LGW?
There are no direct flights, so you'll have to make at least one stop between Houston Airport and London Gatwick. Use the layover time to stretch your legs and freshen up.
Are George Bush Intercontinental Airport (IAH) to London Gatwick flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from Houston Airport to Gatwick Airport (LGW) can be hit-or-miss. You may be able to find a bargain, but then again, you could miss out! If you'd rather play it safe and start planning your trip early, Expedia compares flight deals up to 12 months in advance. Just bear in mind that not all airlines release their prices so far in advance. Our suggestion? Check back often as prices are updated regularly.

Frequently asked questions

How do I find cheap flights from Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick)?
To find a cheap flight from Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick)?
There are approximately 45 connecting flights per day from Houston, TX (IAH-George Bush Intercontinental) (IAH) to London (LGW-Gatwick) (LGW). Some common connection points include Dallas-Fort Worth Intl. (DFW), Charlotte-Douglas Intl. (CLT), and O'Hare Intl. (ORD).
What is the earliest flight from Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick)?
The earliest flight from Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick) typically departs at approximately 6:05 AM local time. This seasonal service is active in October and is operated by American Airlines and British Airways. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick)?
Flights from IAH to LGW with one stop typically take around 19 hours 20 minutes, covering approximately 4,844 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick)?
Select the "Business class" and "First class" filters when looking for IAH to LGW flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick) flight with Expedia?
It's easy to earn miles on a Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for London from George Bush Intercontinental (IAH)?
From George Bush Intercontinental (IAH), you can fly into Gatwick (LGW), London City (LCY), Heathrow (LHR) and London Intl. (YXU) in London. Some flights may connect through major hubs like Charlotte-Douglas Intl. (CLT), Dallas-Fort Worth Intl. (DFW), O'Hare Intl. (ORD) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick) at the last minute?
Typically, booking a last minute flight from Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick) flight and hotel package?
Securing a Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick)?
If you booked your Houston, TX (IAH-George Bush Intercontinental) to London (LGW-Gatwick) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Gatwick
Airlines serving
Air France, American Airlines, British Airways, Delta, Iberia, Icelandair, JetBlue Airways, KLM, Swiss International Air Lines, TAP Portugal, Turkish Airlines, Virgin Atlantic
Return price
£616
Distance
7750 km

Book with confidence

Compare flights from Houston to London easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Houston to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Gatwick in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from George Bush Intercontinental to Gatwick.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from George Bush Intercontinental (IAH) to Gatwick (LGW)

The easiest way to view the best deals on flights from Houston to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from George Bush Intercontinental to Gatwick start at just £616 and range up to £650.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Houston and London
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Houston to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from George Bush Intercontinental to Gatwick for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Houston to London easily and book with confidence

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