£353 Find Cheap Flights from London Heathrow Airport to Houston

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 Houston departing on 5/5. 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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Houston.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Houston.
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Everything you should know

Cheapest return fare
£518
Typical prices: £637-£790
Multiple Airlines
Fri 1/5Tue 5/5
LHR - IAH • 2 stops
Cheapest direct flights
£531
Typical prices: £754-£988
British Airways
Tue 23/6Thu 16/7
LHR - IAH • Direct
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Finnair's Economy Comfort offers extra legroom.
United provides free messaging on most flights.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
JetBlue
Cheapest • from £525 (return)
Finnair
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
LHR
-
IAH
Cheapest
LHR
-
IAH
Most popular
Insights
Insights
Insights
Insights
When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 29% compared to booking last minute.
Insights
Insights
Insights
Insights
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Flight Deals

Cheap Flights from Heathrow to Houston (LHR-HOU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Houston 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 return flight deals from Heathrow to Houston

Fri, 1 May - Tue, 5 May
Multiple Airlines Logo
06:00 - 00:57
LHR
-
IAH
24h 57m
2 stops
Multiple Airlines Logo
11:38 - 17:50
IAH
-
LHR
24h 12m
3 stops
£518Multiple Airlines
Wed, 18 Feb - Tue, 24 Feb
Multiple Airlines Logo
10:50 - 19:04
LHR
-
IAH
14h 14m
1 stop
Multiple Airlines Logo
12:16 - 10:15
IAH
-
LHR
15h 59m
2 stops
£520Multiple Airlines
Wed, 8 Apr - Thu, 16 Apr
Multiple Airlines Logo
11:20 - 23:49
LHR
-
IAH
18h 29m
1 stop
Multiple Airlines Logo
17:23 - 12:35
IAH
-
LHR
13h 12m
1 stop
£521Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
12:05 - 10:36
LHR
-
IAH
27h 31m
3 stops
Multiple Airlines Logo
16:22 - 07:10
IAH
-
LHR
33h 48m
3 stops
£524Multiple Airlines
Wed, 18 Feb - Wed, 25 Feb
JetBlue Logo
09:20 - 14:01
LHR
-
IAH
34h 41m
1 stop
JetBlue Logo
14:55 - 06:55
IAH
-
LHR
34h 00m
1 stop
£525JetBlue
Tue, 24 Feb - Tue, 3 Mar
Multiple Airlines Logo
14:50 - 05:54
LHR
-
IAH
21h 04m
2 stops
Multiple Airlines Logo
15:37 - 17:30
IAH
-
LHR
19h 53m
3 stops
£526Multiple Airlines
Tue, 23 Jun - Thu, 16 Jul
British Airways Logo
09:10 - 13:25
LHR
-
IAH
10h 15mdirect
British Airways Logo
21:05 - 12:25
IAH
-
LHR
9h 20mdirect
£531British Airways
Tue, 24 Feb - Tue, 3 Mar
British Airways Logo
08:20 - 15:51
LHR
-
HOU
13h 31m
1 stop
British Airways Logo
16:21 - 10:00
HOU
-
LHR
11h 39m
1 stop
£562British Airways
Sun, 8 Mar - Thu, 19 Mar
Virgin Atlantic Logo
12:30 - 22:42
LHR
-
HOU
15h 12m
1 stop
Virgin Atlantic Logo
14:13 - 06:25
HOU
-
LHR
11h 12m
1 stop
£577Virgin Atlantic
Sun, 8 Mar - Sun, 22 Mar
American Airlines Logo
14:45 - 23:58
LHR
-
HOU
14h 13m
1 stop
American Airlines Logo
12:18 - 06:50
HOU
-
LHR
13h 32m
1 stop
£579American Airlines
Booking Insights

KAYAK's insights & trends for Heathrow to Houston flights

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

What is the cheapest London Heathrow Airport to Houston flight route?

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

The cheapest return flight from London Heathrow Airport to Houston costs £421 on the route between London Heathrow Airport (LHR) and Houston George Bush Intcntl Airport (IAH). It is also the most popular route.

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

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

If your flying dates are flexible, you should consider flying to Houston on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from London Heathrow Airport to Houston. For your return ticket, we recommend flying on a Tuesday and avoiding Saturdays for the best deals.

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

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, 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 is November, where tickets cost £611 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is £895 and £840 respectively.

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

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, 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, you should book around 2 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Expert advice

Expert advice for your flight from Heathrow to Houston

 
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
Duncan Madden

Duncan Madden

Expert on British Airways

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.

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 travelled to more than 50 countries across six continents.

Gabriel Leigh

Gabriel Leigh

Expert on Finnair

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

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 out at sea, likely en route to Antarctica or the Arctic.

Good to know - Cheap tickets from London Heathrow Airport to Houston

Cheapest flight£353
Flight from London Heathrow Airport to Houston George Bush Airport

When to book flights from Heathrow to Houston

Are your dates flexible? Find out the best times to travel from Heathrow to Houston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 flights

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Houston was £353 for a one-way ticket and £518 for a return.

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

    When flying out of London Heathrow Airport you will be using London Heathrow. You will be landing at one of these airports: Houston Hobby or Houston George Bush Intcntl.

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

    We unfortunately don’t have that data for this specific route.

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

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

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

    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.

  • 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?

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

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

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

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

    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 from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from London Heathrow Airport to Houston?

 
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.
Find which airlines fly direct from London Heathrow Airport to Houston, which days they fly and book direct flights.

Direct departures

London Heathrow to Houston

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 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 flying from Heathrow to Houston

 
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 Houston? 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
FinnairOverall score based on 1356 reviews
6.9Entertainment
7.5Comfort
7.7Boarding
6.7Food
8.2Crew
Airline reviews

Very good seat, very comfortable, good food, and good service.

10.0 ExcellentSunny, Jan 2026
HEL - DEL
Read more Finnair reviews

Very good seat, very comfortable, good food, and good service.

It was a good flight, very comfortable seats for sleeping in business class. Probably the most comfortable business class seat I've ever had (20+ times in business class on various airlines). Service was good, but the only downside is my screen didn't work and it had to be reset multiple times to get it to shut off. I had to block my eyes because the screen was white almost the entire flight and I wore an eye mask when I slept. But when eating and reading in my seat, my eyes hurt because the only way to turn the screen off was reset it and the screen would only be off for a few minutes at a time.

Everything was wonderful! AirBus seats are more comfortable to sleep in as compared to the Boeing planes.

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

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.

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.

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

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.

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.

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 Houston

Information on your arrival and departure airports