LHR - IAH

$448 Find Cheap Flights from London Heathrow Airport to Houston George Bush Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to George Bush Intcntl departing on 5/2. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Houston George Bush Intcntl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Houston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Houston, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$786
Overall average: $891
JetBlue
Wed 9/2Wed 9/9
LHR - IAH • 1 stop
Cheapest non-stop
$1,091
Typical prices: $943-$1,112
Brussels Airlines
Wed 5/13Wed 5/20
LHR - IAH • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Heathrow's security queues can be long; arrive early.
Expect to clear US customs at Houston George Bush Intcntl.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $786 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with British Airways and United Airlines. Average duration is 10h 21m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 89% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to George Bush Intcntl!
Flight Deals
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Expert advice
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Heathrow to George Bush Intcntl 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 Heathrow to George Bush Intcntl

Wed, Sep 2 - Wed, Sep 9
JetBlue Logo
8:40 am - 12:32 pm
LHR
-
IAH
33h 52m
1 stop
JetBlue Logo
11:50 am - 9:30 am
IAH
-
LHR
15h 40m
1 stop
$786JetBlue
Wed, Apr 29 - Wed, May 6
JetBlue Logo
8:40 am - 11:44 am
LHR
-
IAH
33h 04m
1 stop
JetBlue Logo
12:44 pm - 6:30 am
IAH
-
LHR
11h 46m
1 stop
$795JetBlue
Tue, Sep 1 - Wed, Sep 9
JetBlue Logo
8:40 am - 5:43 pm
LHR
-
IAH
15h 03m
1 stop
JetBlue Logo
11:50 am - 9:30 am
IAH
-
LHR
15h 40m
1 stop
$801JetBlue
Wed, Apr 29 - Wed, May 6
JetBlue Logo
8:40 am - 11:44 am
LHR
-
IAH
33h 04m
1 stop
JetBlue Logo
12:44 pm - 6:30 am
IAH
-
LHR
11h 46m
1 stop
$802JetBlue
Sat, Apr 18 - Sat, Apr 25
Multiple Airlines Logo
7:30 am - 9:50 pm
LHR
-
IAH
20h 20m
2 stops
Multiple Airlines Logo
1:07 pm - 9:20 am
IAH
-
LHR
14h 13m
1 stop
$812Multiple Airlines
Mon, May 4 - Tue, May 12
JetBlue Logo
8:40 am - 11:53 am
LHR
-
IAH
33h 13m
1 stop
JetBlue Logo
12:44 pm - 6:30 am
IAH
-
LHR
11h 46m
1 stop
$814JetBlue
Mon, May 4 - Tue, May 12
JetBlue Logo
8:40 am - 11:53 am
LHR
-
IAH
33h 13m
1 stop
JetBlue Logo
12:44 pm - 6:30 am
IAH
-
LHR
11h 46m
1 stop
$816JetBlue
Tue, Apr 28 - Fri, May 29
WestJet Logo
2:10 pm - 1:55 pm
LHR
-
IAH
29h 45m
1 stop
WestJet Logo
2:50 pm - 12:05 pm
IAH
-
LHR
15h 15m
1 stop
$818WestJet
Thu, Apr 30 - Thu, May 7
JetBlue Logo
8:40 am - 11:53 am
LHR
-
IAH
33h 13m
1 stop
JetBlue Logo
12:44 pm - 6:30 am
IAH
-
LHR
11h 46m
1 stop
$819JetBlue
Tue, Apr 21 - Tue, Apr 28
Multiple Airlines Logo
6:00 am - 10:04 pm
LHR
-
IAH
22h 04m
2 stops
Multiple Airlines Logo
7:00 am - 7:15 am
IAH
-
LHR
18h 15m
2 stops
$821Multiple Airlines
Booking Insights

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

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

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

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

When flying from London Heathrow Airport to Houston George Bush Airport, you should consider leaving on a Sunday and avoid Fridays if you are looking for the best rates. For your return to London Heathrow Airport, you’ll find the best rates on Wednesdays and the most expensive ones on Saturdays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Houston George Bush Intcntl Airport, 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 London Heathrow Airport to Houston George Bush Intcntl Airport is January, where tickets cost $834 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $1,283 and $1,224 respectively.

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

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.

No, with an average price for the route of $1,100, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Houston George Bush Intcntl Airport, 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 London Heathrow Airport to Houston George Bush Intcntl Airport, you should book around 2 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Expert advice

Expert advice for your flight from Heathrow to George Bush Intcntl

 
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
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.

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.

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.

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.

Good to know

Low seasonJanuary
Cheapest flight$448
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from London Heathrow Airport to Houston George Bush 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 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.

FAQs for booking London Heathrow Airport to Houston George Bush Airport flights

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Houston George Bush Intcntl Airport was $448 for a one-way ticket and $786 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in London Heathrow Airport and on arrival in Houston George Bush Airport.

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from London to Houston are United Airlines and American Airlines. With an average price for the route of $1,101 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $1,198 and an overall rating of 7.1.

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

    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 London Heathrow Airport to Houston George Bush Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston George Bush Airport from London Heathrow 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 London Heathrow Airport to Houston George Bush Airport?

    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 Houston George Bush Airport with an airline and back to London Heathrow Airport with another airline. Booking your flights between London Heathrow Airport and IAH can sometimes prove cheaper using this method.

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

    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 Houston George Bush Airport from London Heathrow 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 London Heathrow Airport to Houston George Bush Intcntl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $854 or less one-way and $794 or less round-trip.

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

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London Heathrow to Houston George Bush Intcntl.
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

Reviews of the top 4 airlines serving from Heathrow to George Bush Intcntl

 
See real verified KAYAK customer reviews for airlines flying from London to Houston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to George Bush Intcntl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9462 reviews
7.7Boarding
8.1Crew
7.3Comfort
7.1Entertainment
6.6Food
Airline reviews

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

2.0 MediocreLa Vetra, Mar 2026
LAX - IAH
Read more United Airlines reviews

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

Everything was on time and service on the flight was great!

The boarding in Buenos Aires (at the on ramp) was not great. They had to check every carry on. Not a United problem but was a Buenos Aires problem.

Staff and aircraft were good. However, weather in Houston lee to a ground stop. We were looking at circling behind three other planes until the stop was lifted. Pilot said we didn’t have enough fuel for that. So we flew on to New Orleans as the closest port with immigration and customs staff. Landed there and sat in the plane for two hours plus while staff was sorted. Turned away by ICE. Waited for pilots to be switched out, but after they were approved by ICE. Then had to wait to get a runway because so many planes were ahead of us. Finally took off and flew back to Houston. We all missed our connecting flights because it took too long. Hotel voucher from United was only a link to booking site. Total BS. Finally got a flight out the next day after a night without sleep because all the Houston hotels were booked by rodeo and spring break crowds.

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Complimentary light meal would be appreciated. But great flight crew service on all legs

Crew was tired as we all were. Pretty abrupt. Flight was delayed. Not as enjoyable as the other 3 legs we flew.

Given I (and I’m assuming most people) have both carry in and a personal item included in their fare, I find it very unfair that on neither of my flights I was able to use the overhead for my small backpack because they were completely rammed with luggage, people personal items, jackets, hats and other items. So the only item I brought in had to be stuffed under my seat while they had their leg room and sat comfortable with all of their items in the overhead. This has to stop because I was uncomfortable on both flights when I only had one smaller item that could not be checked due to its contents (medication etc). Plenty of people could have checked theirs but chose not to and then took up the space allotment for 2 people.

British Airways is an excellent airline. Comfort, food and airline personnel.

Older airplane with worn out seats. No entertainment system at all. Connecting to Wi-Fi was problematic and hit and miss.

An delay of almost 3 hours while passengers were already in the plane kept us very uncomfortable. The food was also very limited. A bad experience overall.

I understand that there is a catering issue - water should be the minimum stock. During the flight, not once that the attendants came through with water. The conversations in the kitchen were very loud and they were swearing. I do not expect any white glove service, at the minimum, we should be cordial. It was almost an inconveniece that we were on the flight. And it made us feel if you even dare question us, we'll make you deplane.

The flight attendant use 1.5 hours to answer my call. My dirty food tray was unattended.

The flight was completely full. Crew was not happy. Everyone was rude and brusque. Travelling with an arm in a cast and seating in the first row of economy cabin (in front of the separation) I needed help retrieving my tray for the meal. A staff member literally threw the tray on my lap, without helping to take out the tray. Boarding was messy, with 300 people waiting in an encloses space with low ceiling. I will try to avoid AA next time I have a long flight.

I booked an aisle seat and was given a middle. At 6'4" 230lbs, it is not ideal to fly in the middle row for myself and passengers.

The business class seats are dated and uncomfortable. The space is bare minimum and there is absolutely no privacy. For $4K, this is not what I expect.

Flight, food and crew were all good, friendly and very satisfactory.

Lost luggage after 2 days no word leaving on cruise no stuff or clothes

How about changing the personal out to more friendly human beings? This team was pretty arrogant. No fun!!

Everything could have been better. What needed to be wrong with United went wrong

Excellent service. The crew goes above their way to make the customer comfortable.

It was good. The seats in economy weren’t bad

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Excellent service; they helped me reschedule so I can fly in an earlier flight

Wonderful staff. The boarding process can be improved a little better by adequate prior communication but all in all they did fine. However the boarding gate was quite unfreindly to elderly and who needs help with sevral stairs.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

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

Information on your arrival and departure airports