£414 Find Cheap Flights from London 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 London 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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Everything you should know

Cheapest return fare
£563
Multiple Airlines
Mon 14/9Sun 20/9
LGW - IAH • 1 stop
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 Houston Airport, International Arrivals can be very busy on this route.
Use the mini-train to Terminals A-C for easier Uber pickup than D/E.
Expert advice
Expert advice
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Expert advice
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Top airlines
Cheapest • from £566 (return)
Best reviews • 7.6 score
Airline reviews
Airline reviews
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Airline reviews
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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
Direct flights
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Direct flights
Direct flights
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Top routes
Cheapest
Most popular
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Avoid delays
Most punctual • 90% on-time
Best time • Fewest delays
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When to book
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 London to Houston (LON-HOU)

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

Mon, 14 Sep - Sun, 20 Sep
Multiple Airlines Logo
14:00 - 15:44
LGW
-
IAH
31h 44m
1 stop
Multiple Airlines Logo
12:21 - 10:00
IAH
-
LGW
15h 39m
1 stop
£563Multiple Airlines
Sun, 13 Sep - Sat, 26 Sep
Multiple Airlines Logo
14:00 - 10:40
LGW
-
IAH
26h 40m
1 stop
Multiple Airlines Logo
12:21 - 10:00
IAH
-
LGW
15h 39m
1 stop
£564Multiple 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
Mon, 14 Sep - Mon, 28 Sep
British Airways Logo
14:45 - 19:15
LHR
-
IAH
10h 30mdirect
British Airways Logo
15:30 - 06:40
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 London to Houston flights

Get data-powered insights and trends into flights from London 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 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 to Houston departing in September.

Flight prices are below average for this route right now.

Flights to Houston from London usually cost between £754 and £1,105 in September.
The lowest price found in the past 5 days was £563 on Multiple Airlines (14 Sept–20 Sept).

What is the cheapest London to Houston flight route?

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

The cheapest return flight from London 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 to Houston?

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

For London to Houston, Thursday is the cheapest day to fly on average and Monday is the most expensive. Flying from Houston back to London, the best deals are generally found on Monday, with Saturday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London 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 to Houston is January, where tickets cost £668 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is £949 and £926 respectively.

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

Cheapest flight

£414
Flight from London Heathrow Airport to Houston George Bush Airport

When to book flights from London to Houston

Are your dates flexible? Find out the best times to travel from London 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 London to Houston: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from London 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 flights from London to Houston

  • What is the cheapest flight from London to Houston?

    In the last 5 days, the lowest price for a flight from London to Houston was £414 for a one-way ticket and £563 for a return.

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

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

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

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

  • Which airline alliances offer flights from London to Houston?

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

  • How does KAYAK find such low prices on flights from London 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 to Houston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston from London 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 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 with another airline.

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

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London to Houston.
Find which airlines fly direct from London to Houston, which days they fly and book direct flights.

Direct departures

London 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

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 London 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 London 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
7.3Comfort
8.1Crew
6.8Entertainment
7.6Boarding
6.8Food
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.

Wonderful flight! The crew was good, check-in was good and orderly and the flight was uneventful and good.

The international portion was good. Food and beverage options were good. The sustainable wooden eatery was less than desirable. Your Star Alliance partner ANA provided real silverware. I'm 6'3" & 198 lbs and felt cramped in the exit row. How can that be? Flight attendant all had a pleasant disposition which is always good.

The staff were polite and professional. I found the boarding for First Class Business customers not great. They didn't offer me pre- boarding. Just regular zone 1 boarding which didn't feel great. On board and throughout all of our United Flights we found the staff wonderful. We'll definitely fly United again.

Boarded from a very small gate at LAX. Staff at gate had us line up, then waited 25 minutes to board without a word of explanation. Plane arrived on time then waited 20 minutes for a plane to vacate our gate. Majority of bags arrived after 15 minutes but it took an hour for a small number of remaining bags to be off-loaded despite my “priority” bag tag.

The boarding process on the departure from LA was rather slow even though I was in Group 1. For first class, I was not expecting to have to pay for Wi-fi but I did and then the wi-fi was spotty. The entree was surprisingly good and so that was a pleasant surprise. However, once I got to Houston, it was terrible. Unfortunately there was bad weather but the constant gate changes for my connecting flight was difficult to manage due to having to navigate back and forth between different terminals.

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

The flight was delayed, they didn’t even have water for the toilets or for drinks

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.

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.

We missed our connecting flight in Frankfurt do to security and all hell ensued then.we got rebooked to Washington got there round 10 am ish didn't find out till 630 we were rerouted to United!! Then we started getting updates

I like crew. They are friendly. The flight was delayed to take off for 1hr and that caused panic at Houston Airport to catch connecting flight due to security check delay. If it has reached on time I would have sufficient time in collecting bags and security check

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

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

Upon arriving at IAH, it was informed that the luggage had not arrived. Still waiting to hear back when it will be delivered.

I had handicap and pre board due to a recent broken arm, was made to find my own help placing carry on baggage in the storage above. My tv and entertainment unit did not work correctly, requested help and it took 30 minutes to get help, she did not fix it or come back to see if it was fixed. I went to her a second time and she did another reset, still did not fix.

Did not fly to Houston as original flight was cancelled.

Two things to note here. First, Lufthansa separated me from my small children. Apparently you need to pay extra to ensure that your children are not abandoned. This is different from KLM-Air France, where children sit with their parents automatically, and I usually fly KLM-Air France. I didn't realize Lufthansa was different on this score and is willing to leverage the wellbeing of small children to generate more revenue. Second, my flight arrived 3 hours and 54 minutes late, so I am entitled to financial compensation as per EU passenger rights regulation. From other aspects of Lufthansa's behavior during this trip, I expect that their approach to this is to start a war of attrition with their passengers to avoid giving compensation as much as possible - again, very differently from KLM-Air France. But we'll see, maybe I'll be pleasantly surprised.

The plane boarded 5 hours late. This made for a very long travel experience - 3.5 hours for getting to/taking the connecting flight (Air Dolomiti), 5.5 hours layover in Munich, 11.5 hour flight to Houston, 1 hour ride home. After landing at BUSH airport we spent 30 minutes on the tarmac waiting for United staff to prepare the jetway. Flight attendant admonished my wife for briefly opening the window shade midflight to take a look outside.

Check in in Albuquerque was awful. The people were great but they were over loaded. The procedures were terrible. We got through fine but it took 90+ minutes.

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 London to Houston

Cabin class types available on flights from London to Houston

Cabin classes available on flights from London to Houston. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.