£414 Find Cheap Flights from London Heathrow Airport to Houston – Compare and Save

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 19/10. 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.
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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£566
Typical prices: £617-£799
Scandinavian Airlines
Thu 10/9Mon 14/9
LHR - IAH • 2 stops
Cheapest direct flights
£674
Typical prices: £630-£804
British Airways
Wed 9/9Mon 28/9
LHR - IAH • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
At busy Houston Airport, allow extra time if your connection is under 2:45.
From Terminals D/E, use the mini-train to A, B, or C for easier Uber pickup.
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Cheapest • from £566 (return)
Best reviews • 7.6 score
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Direct flights
You can fly direct with British Airways, United Airlines, and Aer Lingus. Average duration is 10h 20m
Direct flights
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Cheapest
Most popular
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Most punctual • 90% on-time
Best time • Fewest delays
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in advance
Our data shows that travellers who book at least 2 weeks in advance save around 29% compared to booking last minute.
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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

Thu, 10 Sep - Mon, 14 Sep
Scandinavian Airlines Logo
06:40 - 22:33
LHR
-
IAH
21h 53m
2 stops
Scandinavian Airlines Logo
12:21 - 16:00
IAH
-
LHR
21h 39m
2 stops
£566Scandinavian Airlines
Mon, 21 Sep - Sat, 3 Oct
Scandinavian Airlines Logo
06:40 - 21:14
LHR
-
IAH
20h 34m
2 stops
Scandinavian Airlines Logo
14:35 - 16:00
IAH
-
LHR
19h 25m
2 stops
£566Scandinavian Airlines
Fri, 9 Oct - Sat, 10 Oct
Lufthansa Logo
16:40 - 00:30
LHR
-
IAH
13h 50m
1 stop
Lufthansa Logo
20:15 - 06:55
IAH
-
LHR
28h 40m
2 stops
£574Lufthansa
Wed, 12 Aug - Thu, 13 Aug
United Airlines Logo
07:30 - 17:55
LHR
-
IAH
16h 25m
1 stop
United Airlines Logo
07:20 - 07:25
IAH
-
LHR
18h 05m
1 stop
£576United Airlines
Thu, 3 Sep - Mon, 7 Sep
JetBlue Logo
11:55 - 16:50
LHR
-
IAH
34h 55m
1 stop
JetBlue Logo
19:31 - 06:30
IAH
-
LHR
28h 59m
1 stop
£581JetBlue
Fri, 9 Oct - Sat, 10 Oct
United Airlines Logo
13:40 - 17:55
LHR
-
IAH
10h 15mdirect
United Airlines Logo
09:40 - 14:10
IAH
-
LHR
22h 30m
1 stop
£584United Airlines
Tue, 8 Sep - Sun, 13 Sep
JetBlue Logo
08:15 - 10:58
LHR
-
IAH
32h 43m
1 stop
JetBlue Logo
17:18 - 09:30
IAH
-
LHR
34h 12m
1 stop
£586JetBlue
Wed, 9 Sep - Mon, 28 Sep
British Airways Logo
09:10 - 13:25
LHR
-
IAH
10h 15mdirect
British Airways Logo
15:30 - 06:40
IAH
-
LHR
9h 10mdirect
£674British Airways
Wed, 9 Sep - Thu, 24 Sep
British Airways Logo
09:10 - 13:25
LHR
-
IAH
10h 15mdirect
British Airways Logo
15:40 - 06:50
IAH
-
LHR
9h 10mdirect
£675British Airways
Fri, 27 Nov - Sun, 29 Nov
Lufthansa Logo
16:00 - 08:13
LHR
-
IAH
46h 13m
2 stops
Lufthansa Logo
16:45 - 06:40
IAH
-
LHR
31h 55m
1 stop
£794Lufthansa
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.

How much is a return flight from London Heathrow Airport to Houston?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to Houston departing in September.

Flight prices are below average for this route right now.

Flights to Houston from London Heathrow Airport usually cost between £671 and £1,082 in September.
The lowest price found in the past 5 days was £566 on Scandinavian Airlines (10 Sept–14 Sept).

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 £652 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 Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from London Heathrow Airport to Houston. For your return ticket, we recommend flying on a Monday 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 January, where tickets cost £654 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is £952 and £950 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 7 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.

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.

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.

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

Cheapest flight

£414
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.

Flights from Heathrow to Houston: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Heathrow to Houston 
AndreaFlew with United Airlines
LHR
-
IAH
Apr 2026
Flight connections can be risky with a 2:45-hour gap. Be aware that the Houston airport is very busy.
WarrenFlew with United Airlines
LHR
-
IAH
Jan 2024
The ground transportation situation (Uber, taxis) at International Arrivals (Terminals D/E) is frankly pathetic for a major American city. Way too many people and cars for the allotted space. I would recommend taking the mini-train to another terminal (A,B or C) and getting an Uber there, rather than trying to navigate International.

FAQs for booking London Heathrow Airport to Houston flights

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

    In the last 5 days, the lowest price for a flight from London Heathrow Airport to Houston was £414 for a one-way ticket and £566 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

Aer Lingus,British Airways,United Airlines

Aer Lingus,British Airways, +1 more

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
Austrian AirlinesOverall score based on 949 reviews
6.8Entertainment
7.6Boarding
6.8Food
7.3Comfort
8.1Crew
Airline reviews

No way to add a bag without getting in line at the counter, which took at least half an hour. No WiFi.

6.0 GoodBecky, Jul 2026
VIE - BOS
Read more Austrian Airlines reviews

No way to add a bag without getting in line at the counter, which took at least half an hour. No WiFi.

The preboarding and the gate organizing management was poor, unorganized and mismanaged. While standing in the business line I kept getting ignored and the personnel kept checking in others, right in front of me until I finally spoke up and pointed out their clear signs of ignoring me while patiently waiting to be checked in. Once checked in the gate the personnel kept chit-chatting and not managing which group is to board, being totally nonchalant, unorganized and behaving amateur-like . Very unprofessional and unlike the quality the Austrian Airlines brand otherwise provides. The crew on the plane are always fantastic and the best. What a shame the crew on the ground was so mediocre.

Flight delayed with no explanation. Boarding was confused (proceed to plane, go back to waiting area).

Last few years I didn't not have great experience with United Airlines.

Short flight. Bare bones and kinda seeming like an older plane. But got me there on time and that's what counts. Perfectly fine flight all the way from start to finish.

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

From all the segments I flew it was the only one I did not get the option to choose ni seat, I did not get the quality of seat I had paid for. Crew was nice, airplane was clean, but no food, only water and a small courtesy chocolate. Everything else you had to pay for.

Very friendly and helpful staff on board and United was excellent when I missed my onward flight due to the delay in London. Very well organised meant much less stress

First time flying with UA and it was a great experience. Thank you

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

United has come a long way, it’s been a fantastic experience traveling with them.

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

Our experience on United Airlines was extremely poor. The plane was extremely cold throughout our entire flight- which multiple people complained about- and we had to wait 2 hours to get a blanket which was too thin and barely helped warm us up. As well as this, none of the entertainment features were working so we had to sit through a roughly 10 hour flight with nothing to keep our attention, including the actual flight path screen. It was an extremely disappointing experience and I would hope that this gets fixed if we ever choose United Airlines again.

Cabin crew was very friendly, requests were satisfied promptly and cheerfully, and the cabin was reasonably clean when I boarded. The United lounges at Newark and Heathrow are always well-run and comfortable, especially Newark. I look forward to the new lounge that will be part of the rebuild of Terminal 2 at Heathrow.

The senior flight attendants were amazing. Totally different vibe from other carriers. Easy 10 hour flight in Business Class. Great food. Good humor as well.

I was lucky to sit in a seat with legroom in economy . The airplane felt like it was 100 years old, seats were very basic, barely reclined. Food was alright , staff was ok but not the friendliest. But all in all ok trip, perfectly on time

Textbook great flight. On-time departure and arrival, clean plane, good food, friendly flight attendants. Checked baggage delivered promptly.

Plane was delayed multiple times. I would like to request a refund. Was due to arrive Thursday evening ended up arriving Friday morning.

The seats were roomier than other airplanes I’ve been on.

The security line at JFK was one of the longest I’ve ever experienced - probably 45 minutes. I don’t know if JetBlue has control over it, but it detracted from the overall experience. Entertainment had good options, but the volume control was a bit small to tap on and the screen had a fair amount of interference blips. Clearer picture would have been better.

I liked the entertainment on JetBlue, the service from JFK to JAX was terrible at best

Jetblue provided a very good service during the flight, the plane in a very good condition, the crew is professional, everything was on time. That's it!

Worst customer service ever experienced on the planet, dirty plane, no communication, and severe delays

The regular feedback of any changes to our flights. The Jetblue staff were very helpful. Our flights were great. Lots of leg room!

Going through JFK’s security is a mess. The TSA security said no shoes on the bins. So, we place our shoes in the belt and they came out all over the belt. Boarding was delayed and Flight as well.

We liked the flight, but not in JFK, not in Gatwick it is no lounge and this was surprising and disappointing. I think by now it is understandable that COVID will not go away and why it should not be business lounge?

I loved the flight and the crew. It was comfortable and smooth.

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.

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.

Not what I expected for the last leg of a $5100 business class experience. Boarding was a nightmare. The flight was delayed and I had to keep checking my email to ensure I was at the right gate since the airline or the terminal had no clue until 15 mins prior to boarding. Food was gross, limited drink options.

Flights scheduled with impossible connections - Lufthansa apparently believes it takes 7mins to change terminals, go through passport control, re-clear security and walk 1.8kms…..and everything will work perfectly (which it never does at Frankfurt). No staff on hand to assist with transfers on delayed flights. No transfer guidance provided by app. No compensation offered for 6hr delay to connecting flight.

Crew were friendly and very helpful Plane was clean and the legroom is standard. Overall a good flight, no complaints.

Other than problems with checking in and uploading passport info everything was great. It would be nice to be able to manually input passport info. Often while traveling the bandwidth has problems uploading pictures

Boarding was a zoo. London ground crew was useless. Poor communication regarding where to line up. We were group 2, and everyone was jammed in together. Ground crew didn’t seem to care.

Horrible flight attendant in back of economy that screamed at me, have already reported to United. Horrible food - for Gluten free, why would you assume the person is vegetarian? I was served some kind of horrible curry bean paste and multiple cold rolls and soggy vegetables with no seasoning... um no!

Knowing that there was weather in other areas of the world, united airlines should have planned better than it did. The flight was 5 hours late. United has no regard for its customers

Flight itself fine, big problem with KAYAK. Revised e-ticket sent in July stated departure LHR 10:55, arrival SFO 13:45. (a believable local arrival time given flight length and time difference). When we got to LHR there was no 10:55 flight to SFO and were advised that in fact flight LH2473 was arriving in MUNICH at 13:45pm, and that we would need to get a connecting flight arriving in SFO at 18:55 local time - over 5 hours later than expected. 1) you the booking agent made an error on the revised e-ticket you sent, omitting the Munich stopover and incorrect SFO arrival time. 2) I booked a DIRECT flight and 3) we had to cancel plans this end as a result, even though the team at LHR did a great job moving us to a later direct flight getting us in 2 hours earlier than the flight from munich would have.

Very comfortable flight and simple and directed one way and back. Amazing price.

Airbus A350 is poorly designed for wheelchair users and reduced mobility passengers. The angle of the pods makes it awkward to transfer. I was able to but I have ab stability. It could be a real challenge for people with more severe mobility impairments. You'd think Airbus would have come up with a solution for this or thought more about us disabled folks more when designing this aircraft.

food options were terrible. for a 10-hour flight, there should be 2 decent meals. Also, flight attendants should come around with drinks more than just at the meals.

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.

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

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.

what would have been better would have been that my booking not been canceled by the system and had I been informed that the booking had been cancelled by the system I could have immediately rebooked and not found out that there was an issue when I was told by the system that I needed to book in. It would have also been good if either the booking agent or BA or anyone been in anyway useful. In the end I had to rebook a flight at an additional cost of $350. So no I'm not impressed by BA any of the other parties involved.

They cancelled our flight the morning of departure at 4:30am.

The staff were very friendly and helpful. The seat configuration was as awful which meant no one had any privacy. The food was very good.

We flew business class. The staff was polite and responsive. The accommodations were comfortable and spacious. The area was clean.

Everything you need to know for your flight from Heathrow to Houston

Information on your arrival and departure airports