£386 Find Cheap Flights from Houston to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Houston to Heathrow departing on 22/7. 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 London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to London, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
£712
Typical prices: £657-£458
KLM
Sun 9/8Sun 16/8
IAH - LHR • 1 stop
Cheapest direct flights
£712
Typical prices: £619-£458
British Airways
Sun 9/8Mon 17/8
IAH - LHR • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
For United, arrive early at Houston to keep check-in smooth and less stressful.
At Heathrow, follow signage closely; exits and Wi-Fi can be less convenient.
Expert advice
Expert advice
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Expert advice
Expert advice
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Top airlines
Cheapest • from £712 (return)
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with British Airways and United Airlines. Average duration is 9h 20m
Direct flights
Direct flights
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+1
Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 82% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 22% compared to booking last minute.
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Houston to Heathrow

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

Sun, 9 Aug - Sun, 16 Aug
KLM Logo
17:48 - 13:05
IAH
-
LHR
13h 17m
1 stop
KLM Logo
06:30 - 13:20
LHR
-
IAH
12h 50m
1 stop
£712KLM
Thu, 6 Aug - Tue, 18 Aug
Delta Logo
13:13 - 13:15
HOU
-
LHR
18h 02m
1 stop
Delta Logo
08:40 - 22:05
LHR
-
HOU
19h 25m
2 stops
£712Delta
Fri, 20 Nov - Fri, 27 Nov
Air Canada Logo
12:10 - 20:35
IAH
-
LHR
26h 25m
2 stops
Air Canada Logo
06:00 - 21:39
LHR
-
IAH
21h 39m
2 stops
£713Air Canada
Sun, 9 Aug - Mon, 17 Aug
British Airways Logo
15:30 - 06:40
IAH
-
LHR
9h 10mdirect
British Airways Logo
09:10 - 13:25
LHR
-
IAH
10h 15mdirect
£714British Airways
Sun, 20 Sep - Sun, 27 Sep
Virgin Atlantic Logo
14:25 - 11:20
HOU
-
LHR
14h 55m
2 stops
Virgin Atlantic Logo
09:40 - 22:35
LHR
-
HOU
18h 55m
2 stops
£714Virgin Atlantic
Sun, 22 Nov - Fri, 27 Nov
Delta Logo
11:50 - 06:25
IAH
-
LHR
12h 35m
1 stop
Delta Logo
06:20 - 13:55
LHR
-
IAH
13h 35m
1 stop
£715Delta
Fri, 4 Sep - Sat, 12 Sep
United Airlines Logo
20:15 - 11:35
IAH
-
LHR
9h 20mdirect
United Airlines Logo
07:25 - 16:40
LHR
-
IAH
15h 15m
1 stop
£715United Airlines
Sun, 11 Oct - Sun, 18 Oct
Lufthansa Logo
20:15 - 11:35
IAH
-
LHR
9h 20mdirect
Lufthansa Logo
07:25 - 16:40
LHR
-
IAH
15h 15m
1 stop
£716Lufthansa
Thu, 15 Oct - Mon, 19 Oct
British Airways Logo
18:19 - 14:25
HOU
-
LHR
14h 06m
1 stop
British Airways Logo
20:00 - 23:53
LHR
-
HOU
33h 53m
2 stops
£721British Airways
Thu, 9 Jul - Thu, 10 Sep
Virgin Atlantic Logo
12:55 - 11:20
HOU
-
LHR
16h 25m
2 stops
Virgin Atlantic Logo
08:40 - 21:35
LHR
-
HOU
18h 55m
2 stops
£723Virgin Atlantic
Booking Insights

KAYAK’s insights & trends for Houston to Heathrow flights

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

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

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

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

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

The cheapest return flight from Houston to London Heathrow Airport costs £332 on the route between Houston George Bush Intcntl Airport (IAH) and London Heathrow Airport (LHR). It is also the most popular route.

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

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

Your flight ticket price will generally be cheaper if you fly to London on a Monday and more expensive on a Saturday. On your return trip to Houston, you should consider flying back on a Thursday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Houston to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Houston to London Heathrow Airport is August, where tickets cost £76 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £472 and £458 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Houston to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Houston to London Heathrow Airport, you should book around 2 weeks before departure, which saves you about 22% 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 Houston to Heathrow

 
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
Tara Craig

Tara Craig

Expert on Austrian Airlines

Tara Craig has been a journalist for 17 years, focusing on aviation for more than a decade. She has covered everything from how airports accommodate disabled passengers to the emergence of electric air taxis. Tara is constantly travelling and finds it hard to stop noticing things – good and bad – about the air travel experience.

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.

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.

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.

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.

Good to know - Cheap tickets from Houston to London

Cheapest flight£386
Flight from Houston George Bush Airport to London Heathrow Airport

When to book flights from Houston to Heathrow

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

Insights shared by verified travellers who flew the route from Houston to Heathrow 
AndrewFlew with United Airlines
IAH
-
LHR
Jul 2025
United really looked after me, just make sure you arrive good and early to ensure an unpressurised check in
Verified travelerFlew with British Airways
IAH
-
LHR
May 2025
Heathrow has good signage. There are lots of people going to the same terminal waiting for the train. Be patient and when you have connecting flights choose a 2-hour layover.
JamesFlew with American Airlines
IAH
-
LHR
Apr 2025
Try to avoid Heathrow! Not the most convenient to get into London unless you have a driver. Also, Heathrow needs better signs on where to go to exit and better wifi for foreign travelers.

FAQs for booking Houston to London flights

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

    In the last 3 days, the lowest price for a flight from Houston to London Heathrow Airport was £386 for a one-way ticket and £712 for a return.

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

    Houston has 2 major airports: Houston Hobby and Houston George Bush Intcntl. London Heathrow is the only airport in London. You’ll usually find the cheapest deals if you fly from Houston George Bush Airport.

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

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

  • Which airline alliances offer flights from Houston to London?

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

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

    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 Houston to London.

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

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

    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 London with an airline and back to Houston with another airline.

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

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

Prefer to fly direct from Houston to London?

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

Direct departures

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

Direct returns

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,Aer Lingus

British Airways,United Airlines, +1 more

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 4 airlines flying from Houston to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Houston to London. 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 Houston to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Virgin AtlanticOverall score based on 689 reviews
7.5Entertainment
7.7Boarding
7.3Comfort
6.9Food
8.1Crew
Airline reviews

Seating and zone. The minor I went with didn’t even seat close to me

4.0 OkayAnonymous, Mar 2026
BOS - LIS
Read more Virgin Atlantic reviews

Seating and zone. The minor I went with didn’t even seat close to me

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Boarded early, left early, arrived 40 mins early! A win win for me!

I felt scammed. The priced advertised was different than what I paid. I paid the whole some online. I then got a call 20 minutes later saying I need to paid 70 more person. She said the price online is not the guaranteed price.

We had a delay, but thankfully I made it to my connection. Overall it went smooth

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

It's a long flight and I would have liked better snacks between lunch and the arrival meal. It's fine to have fruit and nuts but I really don't like ramen because it's salty junk soup. I'd suggest sandwiches. They're not expensive nor are they hard to store for a long flight. The FA's had a couple of big services and they were super busy preparing, executing and then cleaning up. Then they disappeared.

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

I've been flying American mostly, and it's been very frustrating. This united flight makes me realize maybe the issue isn't flying, but the airline. United was a significantly better experience. The plane was more comfortable, with a normal amount of leg room (vs the ridiculous reductions AA has made), more comfortable seats, screens to watch movies. It was a much better experience!

We had excellent customer service despite the chaos at George Bush airport in Houston!

They messed up my seat so I didn’t get the one I paid for

Put me on standby; flight was late; missed my connecting flight; disaster

Flights were delayed and due to a checked hand luggage bag by an overzealous gate agent in Berlin I missed my ground connection costing me another £80. Food was cold and bland, I honestly expect better from a national carrier operating out of one of their major hubs.

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

A bit more space? Not practical, I know. I felt squished in but part of that could have been the man sitting next to me.

I liked the crews attentiveness, all food and drink items were tasty, and came out in a timely manner. The entertainment systems were not as responsive and my seat had issues with the auxiliary for the headphones. Seats were OK, and the headrest for my seat could go back only so far. Bathrooms were tight fit.

The United Airlines crew that operated this flight was subpar. They didn’t

It was my first experience in business class. It was everything I expected and more. Service was impeccable, food was delicious and I felt rested once I arrived to London

Boarding process was chaotic. Confusion over Boarding gates: gate 55 or gate 56 ???. Unnecessary standing in long lines to board. Better to call out Boarding groups one at a time and everyone else to sit. Airline only has 2 Boarding groups 1-3 and 4-9. That causes over crowding and chaos

Lady next to me was coughing profusely the entire flight, other lady moved seats because of it, 8 hours of that during an overnight flight is a bit much.

3.5 hr delay leaving Pittsburgh, notifications for which were incomplete and untimely. Connecting flight was automatically switched to one requiring more than a 30 hour layover! After waiting in a long queue, customer service reduced layover to 11 hours and also set up an earlier standby. The standby had empty seats, but the gate agent couldn't change our tickets! On top of all that my luggage was lost and has yet to even be located, much less returned 5 (FIVE!) days later. Too bad there's no rating below poor.

Canceled flight late London to Florence. Help at airport very poor. Treated poorly. Had to sleep in the airport. Lost bags- still do not have them. Horrible. I should be reimbursed!

The seats are extra cramped if you are taller than 5’8! Spring for the extra legroom seats for sure if you have a long flight!

Very disappointed with British Airways. It has been over 24 hours and I still have not received my checked baggage or any proper update. Customer support has been unresponsive, making the situation even more frustrating. Poor baggage handling and lack of communication seriously impacted my travel experience.

Flight was good but temp in the cabin was cold.

I like American Airlines and their safety record. They provide quality service and a feel safe enough to prefer American Airlines over other carriers even if I have to pay a little more.

Cancelled flight and re booked seats were a downgrade. British Airways said the upgrade was t available but when I checked it was but then they wouldn’t make it right

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

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

Information on your arrival and departure airports