LHR - IAH

$517 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 1/9. 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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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

Sat, Nov 15 - Tue, Nov 18
Multiple Airlines Logo
6:40 am - 9:47 pmLHR-IAH
21h 07m2 stops
Multiple Airlines Logo
5:45 am - 5:00 pmIAH-LHR
29h 15m3 stops
$754Multiple Airlines
Find Deal
Sat, Nov 15 - Tue, Nov 18
JetBlue Logo
9:20 am - 12:41 pmLHR-IAH
33h 21m1 stop
JetBlue Logo
1:38 pm - 6:55 amIAH-LHR
11h 17m1 stop
$756JetBlue
Find Deal
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
6:50 am - 11:01 pmLHR-IAH
22h 11m3 stops
Multiple Airlines Logo
12:17 pm - 5:30 pmIAH-LHR
23h 13m3 stops
$758Multiple Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
6:50 am - 11:01 pmLHR-IAH
22h 11m3 stops
Multiple Airlines Logo
6:20 pm - 12:50 pmIAH-LHR
36h 30m1 stop
$759Multiple Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 25
Multiple Airlines Logo
2:50 pm - 12:44 pmLHR-IAH
27h 54m1 stop
Multiple Airlines Logo
8:54 pm - 12:50 pmIAH-LHR
33h 56m2 stops
$762Multiple Airlines
Find Deal
Wed, Nov 12 - Wed, Nov 19
JetBlue Logo
9:20 am - 5:51 pmLHR-IAH
14h 31m1 stop
JetBlue Logo
1:38 pm - 6:55 amIAH-LHR
11h 17m1 stop
$764JetBlue
Find Deal
Thu, Jan 8 - Mon, Jan 12
Icelandair Logo
9:20 am - 11:40 amLHR-IAH
32h 20m1 stop
Icelandair Logo
12:30 pm - 6:55 amIAH-LHR
12h 25m1 stop
$769Icelandair
Find Deal
Sun, Nov 16 - Thu, Dec 4
WestJet Logo
2:50 pm - 12:44 pmLHR-IAH
27h 54m1 stop
WestJet Logo
1:35 pm - 12:50 pmIAH-LHR
17h 15m1 stop
$773WestJet
Find Deal
Thu, Jan 15 - Mon, Jan 26
WestJet Logo
2:50 pm - 12:44 pmLHR-IAH
27h 54m1 stop
WestJet Logo
6:20 pm - 12:50 pmIAH-LHR
36h 30m1 stop
$775WestJet
Find Deal
Sat, Nov 15 - Tue, Nov 18
Icelandair Logo
8:05 am - 12:41 pmLHR-IAH
34h 36m2 stops
Icelandair Logo
1:38 pm - 6:55 amIAH-LHR
11h 17m1 stop
$783Icelandair
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
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
JetBlue
Cheapest • from $756 (round-trip)
Austrian Airlines
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 18% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$754
Overall average: $897
Multiple Airlines
Sat 11/15Tue 11/18
LHR - IAH • 2 stops
Cheapest non-stop
$998
Typical prices: $1,087-$1,543
Lufthansa
Mon 12/8Wed 12/24
LHR - IAH • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to George Bush Intcntl!
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 Thursday 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 February, where tickets cost $814 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $1,300 and $1,210 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 $981, 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 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Expert advice

Expert advice for your flight from Heathrow to George Bush Intcntl

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Iberia

Iberia’s Business class offers roomy seating with all-aisle access and comfortable bedding.


Iberia’s Premium Economy provides 37-inch seat pitch and 18.5-inch width, ideal for long-haul comfort.

Read more about Iberiaby Marisa Garcia
British Airways

BA’s premium economy offers seven inches extra legroom, enhancing comfort on long flights.


British Airways provides priority boarding and bigger baggage allowance in premium economy.

United Airlines

United Polaris offers lie-flat seats with aisle access, ideal for long-haul comfort.


United Premium Plus provides extra recline and legroom, enhancing comfort on long flights.

Lufthansa

Lufthansa’s Premium Economy offers 50% more space and an extra checked bag.


Lufthansa provides 11 special meal choices, including vegetarian and vegan options.

Read more about Lufthansaby Jessica Macdonald
Airports
LHR

Heathrow's security queues can be long. Arrive two hours early for carry-on only, more if checking bags, especially during peak times.

Read more about LHRby Duncan Madden
IAH

For international arrivals at IAH, you'll go through US customs and collect bags before heading to ground transportation.

Read more about IAHby John Walton
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Iberia

Marisa Garcia

Marisa Garcia

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.

Read more
Duncan Madden

Duncan Madden

Expert on British Airways and LHR

Duncan Madden

Duncan Madden

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.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek

Stefanie Waldek

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.

Read more
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Jessica Macdonald

Jessica Macdonald

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.

Read more
John Walton

John Walton

Expert on IAH

John Walton

John Walton

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.

Read more

Good to know

Low seasonJanuary
Cheapest flight$517
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 30% 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 $517 for a one-way ticket and $754 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, Austrian Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from London to Houston are Austrian Airlines and United Airlines. With an average price for the route of $1,217 and an overall rating of 7.6, Austrian Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,162 and an overall rating of 7.4.

  • 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 $781 or less one-way and $847 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.
7.6
Austrian AirlinesOverall score based on 862 reviews
7.6Boarding
6.8Entertainment
8.1Crew
7.3Comfort
6.8Food
Airline reviews

Great! They got my vegetarian meal right, flight was comfortable, they helped store my heavy luggage. Pleasant crew and flight staff.

10.0 ExcellentL, Oct 2025VIE - EWR
Read more Austrian Airlines reviews

Great! They got my vegetarian meal right, flight was comfortable, they helped store my heavy luggage. Pleasant crew and flight staff.

I did wish they would give us the entire little bottle Bailey's instead of just have 1/2 bottle at a time

My layover in Vienna was supposed to be 35 minutes but because my flight was canceled I had to wait in the airport for an additional 8 hours.

The flight was delayed for 30 minutes with no apparent reason. There is no entertainment at all, and no USB or electric outlets for charging your phone or tablet.

They had me unpack a handbag 2 lbs overweight into another handbag 8 lbs underweight for a Bible.

My flight was canceled and even though I paid אם KAYAK you didn't even answer me and obviously didn't refund my money. I will never buy a ticket through you again.

Accessibility serious problems in Viena airport making it seriousely difficult in in-between gates and boarding travel. Pretens of breakfast and service care in the economy pathetic.

One thing I really liked about Austrian Airlines was that the flight attendants were very kind, and the in-flight entertainment offered many choices. One thing that could be improved is the meal service, since only a vegetarian option was offered — it would be better to have at least two choices

Despite the booked seats in front of the land we were moved to the back of the plane even first like 8 lines were totally without pasangers. When I tried to sit on empty seat flight attendant asked me to go to my dedicated seat in the fully crowded back of the plane. She was not able to explain why. Food was very poor on flight LAX - VIE.

We had a wonderful experience overall. The only issue was check-in our luggage at the Split Airport counter. It was very confusing because we needed to pay for baggage.

Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

I flew with my dog and had already purchased my dog’s ticket. Even that morning I had called costumer service to insure that my husband and I had seats together since the website was giving me an error when choosing our seats and the representative mentioned our dog. I showed up early to the airport and when I got to the gate and we started boarding I was help back and told that I was supposed to have a yellow tag and that I should have checked in at the counter for them to give me that tag. I was not aware of this, the representative on the phone did not say anything. Nor did I see it anywhere in the checking process online, so if you travel with a pet and are not checking in luggage, just know that you still have to go to the check in counter when arriving at the airport unless you want to be the last one to board and not have room for your carry on in the overhead bins. Other than that, I had a great experience.

The experience was great, the crew was very polite and hospitable. I will definitely make if my go to airlines.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

The woman gate agent in Phoenix was none too sympathetic about my check-in process as I am relatively new with using apps. I almost did not get on because she said I did not check-in. I thought I had via Kayak where I purchased a very expensive ticket. Lesson learned but to be told I may not get on as a matter of factly was difficult to hear.

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 seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Give yourself over 2+ hours layover because if flight is slighlty delayed and you miss your connection, Lufthansa will do nothing for you

We would have missed our connection from Munich to Boston but we had a van outside the plan that wisked us to our terminal. Much appreciated and we didn’t even realize that Lufthansa had done this until the announcement on disembarkation. Well organized airline! Will definitely fly Lufthansa again!!!

Everything went well. I will fly with Lufthansa again. And use Kayak whenever I book flights

Bought a seat in a flight that got changed out so ended up paying for a seat I would have had if I hadn't paid.

Food was poor quality and the screens for entertainment didn’t work properly

Food was much better than my outbound flight. On-time. Good service. I had a problem with my entertainment screen, but the attendant fixed it promptly.

The seating arrangement by having privacy screens would have been more appealing. If you sit in the business class, you pay for extra comfort and privacy. Other than that, the service was excellent and the staff very professional.

There might be more food options for people who can't eat so much starch/sugar/bread/rice. Meat, cheese, walnuts/pecans for snack, maybe jerky or other kinds of meat-based snacks would be better than bread and rice and sweets. I had an extra chardonnay, which was fine. The entertainment was great.

Unfortunately, my flight was cancelled because of some sort of emergency over the Atlantic and had to return to London. While I think British Airways made every effort to mitigate the situation, I must say it was still pretty unpleasant. I do appreciate the fact, however, that British Airways put my safety first…and I think the effort to correct a bad situation was very sincere. But I think the process might be handled better in future.

Crew service was poor and very little difference between premium economy and economy. Disappointed.

My bags never made it on the flight and I now have to wait for them to arrive hopefully tomorrow. You can’t even track your bags in the app to see where they are since they didn’t arrive. You have to file a claim and then wait for them to inform you when you will receive your bag. We were already delayed for an hour due to baggage so I don’t understand how my bag didn’t make the flight.

One of the worst experience given the middle seat even asked for the change no one honored,boarded at the end and overall one of the worst experience

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

I am a 25+ years American Airlines member. British Airways is simply above and beyond in every customer satisfaction category.

The seat pads are past there sell by date now and are uncomfotable. Also, with screens in the back of the seat, the seats shouldnt be able to recline as this puts rhe screen in your face.

1. The website didn’t allow me to checkin from London as I have Bangladesh passport with US permanent resident card. This pushed me to sit with my wife in the middle of two aisle seats, terrible experience! 2. BA should allow within 24 hours to checkin with other passport holders to choose better seats. A 2nd verification of travel documents can be done at the desk about immigration status. 3. Food options were poor for vegetarian passengers, try to introduce healthy options avoiding carb-dense food ingredients.

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

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