LHR - IAH

$466 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 4/27. 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
$715
Overall average: $946
Multiple Airlines
Mon 3/16Tue 3/24
LHR - IAH • 2 stops
Cheapest non-stop
$836
Typical prices: $910-$1,158
British Airways
Mon 4/13Wed 4/22
LHR - IAH • Non-stop
Our travelers' advice
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
JetBlue
Cheapest • from $733 (round-trip)
Austrian Airlines
Best reviews • 7.5 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
January
Cheapest • 18% price drop
July
Most popular
Good to know
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+1
+1
Good to know
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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

Mon, Mar 16 - Tue, Mar 24
Multiple Airlines Logo
3:50 pm - 8:40 am
LHR
-
IAH
21h 50m
2 stops
Multiple Airlines Logo
12:46 pm - 9:55 am
IAH
-
LHR
16h 09m
1 stop
$715Multiple Airlines
Mon, Mar 2 - Mon, Mar 16
Multiple Airlines Logo
6:00 am - 12:30 am
LHR
-
IAH
24h 30m
2 stops
Multiple Airlines Logo
4:04 pm - 9:40 pm
IAH
-
LHR
24h 36m
2 stops
$716Multiple Airlines
Sun, Feb 8 - Wed, Apr 29
JetBlue Logo
9:20 am - 11:39 am
LHR
-
IAH
32h 19m
1 stop
JetBlue Logo
12:44 pm - 6:30 am
IAH
-
LHR
11h 46m
1 stop
$718JetBlue
Mon, Mar 16 - Mon, Mar 30
Multiple Airlines Logo
6:00 am - 10:18 am
LHR
-
IAH
33h 18m
3 stops
Multiple Airlines Logo
8:00 am - 4:25 pm
IAH
-
LHR
26h 25m
3 stops
$723Multiple Airlines
Thu, Apr 30 - Sun, May 3
Multiple Airlines Logo
1:05 pm - 8:37 am
LHR
-
IAH
25h 32m
3 stops
Multiple Airlines Logo
7:35 am - 11:55 am
IAH
-
LHR
22h 20m
3 stops
$732Multiple Airlines
Mon, Apr 13 - Mon, May 4
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
$733JetBlue
Tue, Mar 10 - Wed, May 13
Multiple Airlines Logo
2:50 pm - 12:45 pm
LHR
-
IAH
26h 55m
1 stop
Multiple Airlines Logo
7:05 am - 8:05 am
IAH
-
LHR
19h 00m
2 stops
$734Multiple Airlines
Tue, Apr 28 - Tue, May 12
Multiple Airlines Logo
8:05 pm - 3:44 pm
LHR
-
IAH
25h 39m
1 stop
Multiple Airlines Logo
7:05 am - 6:20 am
IAH
-
LHR
17h 15m
1 stop
$739Multiple Airlines
Tue, Mar 10 - Wed, May 13
Multiple Airlines Logo
2:50 pm - 12:45 pm
LHR
-
IAH
26h 55m
1 stop
Multiple Airlines Logo
7:05 am - 6:45 am
IAH
-
LHR
17h 40m
1 stop
$741Multiple Airlines
Mon, Mar 16 - Mon, Mar 23
Multiple Airlines Logo
12:05 pm - 5:32 pm
LHR
-
IAH
34h 27m
3 stops
Multiple Airlines Logo
8:00 am - 7:15 pm
IAH
-
LHR
30h 15m
3 stops
$743Multiple 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 $820 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $1,286 and $1,204 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 $843, 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

 
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$466
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 28% 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 $466 for a one-way ticket and $714 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 $1,193 and an overall rating of 7.5, Austrian Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,101 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 $706 or less one-way and $781 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 5 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.
7.5
Austrian AirlinesOverall score based on 896 reviews
8.1Crew
7.3Comfort
6.8Entertainment
6.8Food
7.6Boarding
Airline reviews

My Austrian Air flight from Montenegro to Vienna was delayed by three hours because their plane de-icer was broken and they had to wait for the sun to come up before the ice could melt. This meant we missed our United flight altogether. So I can't speak about United, but I was not impressed by Austrian Air. They made us check in two carry on bags for a 60% full flight, and the bags didn't find us in the US for ten days. The re-routing they arranged included an extra leg, a midnight taxi ride across New Jersey and New York, and a five hour sleep in a hotel. Not impressed.

2.0 MediocreNate, Jan 2026
GSP - IAD
Read more Austrian Airlines reviews

My Austrian Air flight from Montenegro to Vienna was delayed by three hours because their plane de-icer was broken and they had to wait for the sun to come up before the ice could melt. This meant we missed our United flight altogether. So I can't speak about United, but I was not impressed by Austrian Air. They made us check in two carry on bags for a 60% full flight, and the bags didn't find us in the US for ten days. The re-routing they arranged included an extra leg, a midnight taxi ride across New Jersey and New York, and a five hour sleep in a hotel. Not impressed.

Excellent flight. The crew was exceptionally attentive and organized. Attention to details is unmatched.

Loved the courtesy and punctuality. Very professional and most importantly on time.

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.

Delayed, toilets did not flush, pilot parked to far away from Gate

Check-in, boarding and the flight from Phoenix to Houston was quick and easy. The flight from Houston to Shreveport was delayed 5 hours. It was frustrating but I think United handled it the best they could.

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

In Liberia airport 5 min before our departure the airport was closed for takeoff for 30 min. Upon arrival to IAH we didn’t have any available gate and waited taxing another 40 min. As a result we arrived for 1+ h later. The walkway to the passport control in IAH is about 1-2 ml long. After the passport control you have to pass the security check again. Only 3 out of 16 checkpoints were open and the line was enormously long. As a result, even though we supposed to have 2.5 hrs gap in between the flights we missed our transfer. United rebooked us for the next available flight early morning and provided free hotel and meal vouchers through.

United is an incompetent airline. They parked the plane on the tarmac for an hour after arriving because they “didn’t have a gate available” it was actually some sort of lie because as we de planed there were approximately 9 open and manned and empty gates that we walked past. Many people on the flight missed connections for the hour long sit on the tarmac. Utterly baffling and incompetent behavior from United flight ops.

I boarded flight UA#1318 at Sacramento International Airport going back to Houston TX. The flight was scheduled at 5:10am. I was able to check in virtually using the United Airlines app. When I entered the airport, there was no one outside assisting with checked bags as it was for Delta Airlines. Immediately upon entering, there was a LONG, EXTREMELY LONG line to the kiosks to get boarding passes. I stand in line to get boarding passes then had to move to ANOTHER EXTREMELY LONG line to get my bags checked in. While standing in this line, we noticed an agent taking customers to 3 at a time to her station to check their bags in. Lucky for me, she called me back, checked my bags for me and I was on my way. I then encountered another long line at the TSA check and to avoid I ending up having to sign up for CLEAR to bypass it. So glad, I did.,...Both of my flights were great with no issues, butthe check in progress at Bush Airport was so much smoother. Check-in at SMF airport needs to be anaylzed and corrected. Do better United, I know you can....thanks

everything was pretty good. Houston airport is awful. Unnecessarily inefficient; people working there are rude. Badly run

Staff on board was excellent. Positive upbeat helpful- like it used to be.

The Sears in the 800s are not too good perfect Airbus why cant the new 737 fix that

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

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

Staff's did their best to make everyone comfortable and I appreciate them for it

Pathetic check in experience once again. Not enough staff scheduled at bag drop or for special assistance at LHR. Really need to rethink the whole self check in procedure. The crew was good. A very decent selection of special meals in this leg as compared to the JFK-LHR leg.

Very clean and comfortable cabin. Amazing Mediterranean salad for lunch before landing. Great range of films to watch. Really quiet and easy to sleep on the flight also. The initial food was a bit weird: odd fried chicken pieces in some weird white gloop, but that would be my lack of cultural knowledge on the grub. Salad more than made up for it at the other end. Staff were super attentive and helpful. Great and easy flight

I flew Business Class. Rory, one of the Cabin stewards, was attentive, explained the menu, provided appropriate drinks. was

Not great - seats were very narrow and food was terrible.

Some of the crew was sassy and not super helpful. The food was okay, but it seems like they were all unprepared compared to my flight I did from JFK to Frankfurt

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

We were in premium economy seats that appeared to be locked in plae, No reclining. My aching back.

I don’t understand how they charge as much as they do for such a poor experience

Lufthansa flight LH04414 from Munich to Washington DC, was fine. Efficient and safe!

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 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.

The plane was late (as was my flight out from Birmingham the day before)

Great experience. Flight was on time and reached destination on time

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.

Entertainment devices on A380 need to be fixed, the seats might do with updates.

Everything. Employees offered to help me because I had to use a cane.

Check-in and boarding were great. On flight staff were rude and disrespectful. Paid for extra room and found it incredibly cramped. Bathrooms kept in poor condition. Overall negative experience.

My seat cushion was poor. The cushion was compressed and was uncomfortable for such a long flight.

I was in a bulkhead seat and my tray table wasn't level. Eating was difficult.

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

Information on your arrival and departure airports