$554 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 10/27. 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.
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Everything you should know

Cheapest round-trip
$755
Typical prices: $884-$1,181
Scandinavian Airlines
Fri 10/9Tue 10/20
LHR - IAH • 2 stops
Cheapest non-stop
$899
Typical prices: $840-$1,072
British Airways
Wed 9/9Mon 9/28
LHR - IAH • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
Lufthansa Premium Economy adds 50% more space and an extra checked bag.
BA Premium Economy offers wider seats; Iberia adds Wi-Fi on long flights.
Expert advice
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Cheapest • from $755 (round-trip)
Best reviews • 7.4 score
Airline reviews
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Nonstop 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 travelers 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 (LHR-HOU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip 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 round-trip flight deals from London to Houston

Fri, Oct 9 - Tue, Oct 20
Scandinavian Airlines Logo
6:40 am - 11:55 pm
LHR
-
IAH
23h 15m
2 stops
Scandinavian Airlines Logo
12:03 pm - 4:00 pm
IAH
-
LHR
21h 57m
2 stops
$755Scandinavian Airlines
Thu, Sep 10 - Mon, Sep 14
Scandinavian Airlines Logo
6:40 am - 10:33 pm
LHR
-
IAH
21h 53m
2 stops
Scandinavian Airlines Logo
12:21 pm - 4:00 pm
IAH
-
LHR
21h 39m
2 stops
$755Scandinavian Airlines
Fri, Oct 9 - Sat, Oct 10
Lufthansa Logo
4:40 pm - 12:30 am
LHR
-
IAH
13h 50m
1 stop
Lufthansa Logo
8:15 pm - 6:55 am
IAH
-
LHR
28h 40m
2 stops
$765Lufthansa
Wed, Aug 12 - Thu, Aug 13
United Airlines Logo
7:30 am - 5:55 pm
LHR
-
IAH
16h 25m
1 stop
United Airlines Logo
7:20 am - 7:25 am
IAH
-
LHR
18h 05m
1 stop
$768United Airlines
Thu, Sep 3 - Mon, Sep 7
JetBlue Logo
11:55 am - 4:50 pm
LHR
-
IAH
34h 55m
1 stop
JetBlue Logo
7:31 pm - 6:30 am
IAH
-
LHR
28h 59m
1 stop
$775JetBlue
Fri, Oct 9 - Sat, Oct 10
United Airlines Logo
1:40 pm - 5:55 pm
LHR
-
IAH
10h 15mnonstop
United Airlines Logo
9:40 am - 2:10 pm
IAH
-
LHR
22h 30m
1 stop
$779United Airlines
Tue, Sep 8 - Sun, Sep 13
JetBlue Logo
8:15 am - 10:58 am
LHR
-
IAH
32h 43m
1 stop
JetBlue Logo
5:18 pm - 9:30 am
IAH
-
LHR
34h 12m
1 stop
$781JetBlue
Wed, Sep 9 - Mon, Sep 28
British Airways Logo
9:10 am - 1:25 pm
LHR
-
IAH
10h 15mnonstop
British Airways Logo
3:30 pm - 6:40 am
IAH
-
LHR
9h 10mnonstop
$899British Airways
Wed, Sep 9 - Thu, Sep 24
British Airways Logo
9:10 am - 1:25 pm
LHR
-
IAH
10h 15mnonstop
British Airways Logo
3:40 pm - 6:50 am
IAH
-
LHR
9h 10mnonstop
$900British Airways
Sat, Nov 21 - Mon, Nov 30
Lufthansa Logo
11:35 am - 11:14 am
LHR
-
IAH
29h 39m
1 stop
Lufthansa Logo
7:00 pm - 10:15 am
IAH
-
LHR
9h 15mnonstop
$1,046Lufthansa
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 round-trip flight from London Heathrow Airport to Houston?

This analysis is based on the cheapest round-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 $895 and $1,442 in September.
The lowest price found in the past 5 days was $755 on Scandinavian Airlines (Sep 10-Sep 14).

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 $810 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 Heathrow Airport to Houston clicked on KAYAK for each day over the last 12 months.

When flying from London to Houston, you should consider leaving on a Sunday and avoid Tuesdays if you are looking for the best rates. For your return to London, you’ll find the best rates on Wednesdays and the most expensive ones on Fridays.

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 $872 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,269 and $1,267 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 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
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

Cheapest flight

$554
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 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.

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

Insights shared by verified travelers 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 London 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 $554 for a one-way ticket and $755 for a round-trip.

  • Do I need a passport to fly between London and Houston?

    Yes, you’ll need a passport to travel to Houston from London.

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

    When flying out of London 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 to Houston?

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

  • Which airline alliances offer flights from London to Houston?

    oneworld, and Star Alliance are the airline alliances operating flights between London and Houston, with oneworld 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 round-trip 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 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 serving 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.
7.4
United AirlinesOverall score based on 10052 reviews
8.1Crew
6.6Food
7.7Boarding
7.3Comfort
7.1Entertainment
Airline reviews

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

8.0 ExcellentMarianne, May 2026
LHR - DEN
Read more United Airlines reviews

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.

The passport line was so long that many of us were concerned about missing our flight and some did. It would've helped if a AA representative had gone to the passport check-in sooner to advise that boarding was closing and those flying that were stuck back in the line, needed to come forward with apologies to others. An AA representative did do that but only after boarding had already closed. (They delayed take-off so that more who were running with carry-ons could get to the gate - especially stressful for older people!) Then to be crammed into a seat with barely enough leg room for a thin woman, 5'7", like me, much less for a taller, bigger person was not comfortable, especially if the person in front decided to lean back. Crew was fine, food and entertainment also.

It is okay. Flight was on time to start and early to land

Boarding was a shambles, pushed us all onto the airbridge and then made us wait for ages

Pilot kept the seatbelt light off for almost the entire flight, so bathroom visits were well spread out. Yes, it was a very smooth ride, but I have been on transatlantic flights where the seatbelt light was almost perpetually on, even though no turbulence. Pickup of meal trays and trash was exceptionally fast and frequent.

Overall it was good but not great. The aircraft was an old and seats didn’t recline in business class unless you kept playing around with it.

Food was terrible. Flight attendants OK. Only saw them at food service. Other than that they paid no attention to the passengers at all.

The plane was subbed for another last minute, the gate was changed last minute. Could live with that but we boarded and there was a delay which totaled an hour in the end. There was a technical issue which meant wheels needed to remain out for ten mins after take off. My USB phone charger was broken as was the headphone jack which meant I could t enjoy the IFE and could use my phone after a few hours. Even the map function on the plane failed to work after a few hours.

Had an hour delay due to mechanical/safety; so we missed our connection in Dallas. Got home later than planned but safely and that is appreciated.

Standby for us - as travelers with mobility issues - was inefficient and not responsive to our needs. Crew seemed disinterested and disaffected - just going through the necessary motions. Food snack (chicken wrap) was awful to the point of wrenching it up a few hours later.

Connection via Dallas was dodgy. It takes a long time to clear one terminal and check through into another. Allow at least 2.5 hours between plane times, maybe 3.

Flight was delayed. But my finances flight with JetBlue a week before same route was extra delayed and then cancelled at 2am when his flight was suppose to take off at 7pm was never provided a hotel or anything. Came back to airport and his rescheduled flight was cancelled again for 2 days later. Was told since it was a weather issue they don’t do refunds. But that’s a lie because I booked him on another airline at the same time and they were able to take off perfectly fine

Flight delayed 4 times on a non-stop from BOS to SFO. Then when landed in SFO had to wait for 30 mins for a gate AT 3:30AM.

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.

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 London to Houston

Information on your arrival and departure airports