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Cheap flights from London to Houston from $378

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Houston departing on 9/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Multiple Airlines Logo
7:40 am - 9:17 pmLGW-IAH
43h 37m3 stops
Multiple Airlines Logo
9:02 am - 10:00 amIAH-LGW
18h 58m2 stops
$769Multiple Airlines
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Wed, Oct 8 - Fri, Oct 10
Multiple Airlines Logo
1:30 pm - 1:39 pmLCY-IAH
30h 09m3 stops
Multiple Airlines Logo
6:00 am - 5:05 pmIAH-LCY
29h 05m2 stops
$769Multiple Airlines
Find Deal
Wed, Nov 19 - Wed, Nov 26
Scandinavian Airlines Logo
6:40 am - 11:56 pmLHR-IAH
23h 16m2 stops
Scandinavian Airlines Logo
4:00 pm - 5:40 pmIAH-LHR
19h 40m2 stops
$769Scandinavian Airlines
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Thu, Nov 20 - Wed, Dec 10
Lufthansa Logo
6:35 am - 4:10 pmLHR-IAH
15h 35m1 stop
Lufthansa Logo
7:05 pm - 10:15 amIAH-LHR
9h 10mnonstop
$803Lufthansa
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Fri, Dec 5 - Sun, Dec 14
Lufthansa Logo
9:30 am - 6:15 pmLHR-IAH
14h 45m1 stop
Lufthansa Logo
4:20 pm - 7:30 amIAH-LHR
9h 10mnonstop
$811Lufthansa
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Tue, Nov 4 - Tue, Nov 11
British Airways Logo
9:25 am - 1:40 pmLHR-IAH
10h 15mnonstop
British Airways Logo
9:00 pm - 12:20 pmIAH-LHR
9h 20mnonstop
$815British Airways
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Tue, Sep 30 - Tue, Oct 14
British Airways Logo
9:20 am - 1:40 pmLHR-IAH
10h 20mnonstop
British Airways Logo
9:50 pm - 12:50 pmIAH-LHR
9h 00mnonstop
$816British Airways
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Sat, Oct 4 - Sat, Dec 6
United Airlines Logo
6:35 am - 4:10 pmLHR-IAH
15h 35m1 stop
United Airlines Logo
5:05 pm - 10:50 amIAH-LHR
12h 45m1 stop
$824United Airlines
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Fri, Mar 6 - Thu, Mar 12
United Airlines Logo
9:30 am - 5:50 pmLHR-IAH
14h 20m1 stop
United Airlines Logo
10:00 am - 6:30 amIAH-LHR
14h 30m1 stop
$825United Airlines
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Wed, Oct 8 - Wed, Oct 22
Iberia Logo
6:45 pm - 8:02 pmLHR-HOU
31h 17m2 stops
Iberia Logo
2:26 pm - 10:50 amHOU-LHR
14h 24m1 stop
$918Iberia
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Wed, Oct 1 - Thu, Oct 23

American Airlines flights from London to Houston

Our best American Airlines deals on London to Houston flight tickets
American Airlines
Oct 2
LGW12:20 pmLondon Gatwick
17h 28m
2 stops
HOU11:48 pmHouston Hobby
Oct 6
HOU8:59 amHouston Hobby
17h 36m
2 stops
LGW8:35 amLondon Gatwick
$812
Find similar
American Airlines
Nov 12
LGW12:30 pmLondon Gatwick
18h 17m
2 stops
IAH12:47 amHouston George Bush Intcntl
Nov 19
IAH7:30 amHouston George Bush Intcntl
19h 30m
2 stops
LGW9:00 amLondon Gatwick
$813
Find similar
American Airlines
Mar 1
LGW11:20 amLondon Gatwick
32h 15m
2 stops
IAH1:35 pmHouston George Bush Intcntl
Mar 3
IAH6:25 pmHouston George Bush Intcntl
55h 05m
2 stops
LGW7:30 amLondon Gatwick
$820
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Virgin Atlantic flights from London to Houston

Our best Virgin Atlantic deals on London to Houston flight tickets
Virgin Atlantic
Sep 24
LHR6:30 amLondon Heathrow
12h 45m
1 stop
IAH1:15 pmHouston George Bush Intcntl
Oct 11
IAH4:21 pmHouston George Bush Intcntl
15h 09m
1 stop
LHR1:30 pmLondon Heathrow
$794
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Virgin Atlantic
Oct 9
LHR6:15 amLondon Heathrow
13h 20m
1 stop
IAH1:35 pmHouston George Bush Intcntl
Oct 12
IAH4:21 pmHouston George Bush Intcntl
15h 09m
1 stop
LHR1:30 pmLondon Heathrow
$800
Find similar
Virgin Atlantic
Sep 27
LHR6:30 amLondon Heathrow
12h 45m
1 stop
IAH1:15 pmHouston George Bush Intcntl
Oct 4
IAH6:00 pmHouston George Bush Intcntl
13h 30m
1 stop
LHR1:30 pmLondon Heathrow
$807
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momondo Fare Finder

 
Customize your flight search to find flights from London to Houston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from London to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonHouston

LGW - IAH

LGWIAH

London Gatwick

Wed 10/8

7:40 am-9:17 pm

3 stops43h 37m

Houston George Bush Intcntl

Fri 10/10

9:02 am-10:00 am

2 stops18h 58m

$769

LondonHouston

LCY - IAH

LCYIAH

London City

Wed 11/19

1:30 pm-1:39 pm

3 stops30h 09m

Houston George Bush Intcntl

Wed 11/26

6:00 am-5:05 pm

2 stops29h 05m

$769

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Thu 11/20

6:40 am-11:56 pm

2 stops23h 16m

Houston George Bush Intcntl

Wed 12/10

4:00 pm-5:40 pm

2 stops19h 40m

$769

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Fri 12/5

6:35 am-4:10 pm

1 stop15h 35m

Houston George Bush Intcntl

Sun 12/14

7:05 pm-10:15 am

Nonstop9h 10m

$803

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 11/4

9:30 am-6:15 pm

1 stop14h 45m

Houston George Bush Intcntl

Tue 11/11

4:20 pm-7:30 am

Nonstop9h 10m

$811

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 9/30

9:25 am-1:40 pm

Nonstop10h 15m

Houston George Bush Intcntl

Tue 10/14

9:00 pm-12:20 pm

Nonstop9h 20m

$815

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Sat 10/4

9:20 am-1:40 pm

Nonstop10h 20m

Houston George Bush Intcntl

Sat 12/6

9:50 pm-12:50 pm

Nonstop9h 00m

$816

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Fri 3/6

6:35 am-4:10 pm

1 stop15h 35m

Houston George Bush Intcntl

Thu 3/12

5:05 pm-10:50 am

1 stop12h 45m

$824

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 10/8

9:30 am-5:50 pm

1 stop14h 20m

Houston George Bush Intcntl

Wed 10/22

10:00 am-6:30 am

1 stop14h 30m

$825

LondonHouston

LHR - HOU

LHRHOU

London Heathrow

Wed 10/1

6:45 pm-8:02 pm

2 stops31h 17m

Houston Hobby

Thu 10/23

2:26 pm-10:50 am

1 stop14h 24m

$918

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Houston from

How to get the cheapest flight ticket from London to Houston

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between London and Houston?

What is the cheapest month to fly to Houston?

The month of March is, on average, the cheapest month to fly to Houston from London, with most prices found around $811. The month of January is another great option to travel to Houston, with average flight prices from London averaging around $813.

What is the cheapest day to depart on your flight to Houston?

On average, the least expensive day to fly to Houston from London is on a Saturday. momondo users have found tickets for Saturday departures for as low as $894. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Houston on Sunday is $1,280.

What is the cheapest time of day to depart on your flight to Houston?

Our data shows that the cheapest London to Houston flights are usually those with departure times in the evening. Our users have found flights to Houston in the evening for as low as $759. Try not to purchase tickets at noon because they tend to be around $1,011. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest London to Houston flight route?

Fly from London Heathrow to Houston George Bush Intcntl for the best London - Houston flight prices

How far in advance should I book a flight to Houston?

You are more likely to see cheaper flights to Houston from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston for around $966 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from London for as low as $809 on momondo.

What cabin class options are available on London to Houston flights?

There are 4 cabin classes available to choose from on London to Houston flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap London to Houston flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Houston

Fastest flight time

10h 15m

Direct flights

Every day

Airports in Houston

1 airport
The fastest flight from London to Houston takes 10h 15m
Direct flights go from London to Houston every day.
There is 1 airport near Houston: Houston George Bush Intcntl (IAH)
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  • How far is London to Houston by plane?

    The distance between London and Houston is about 4845.7 mi. In terms of flight time, this usually takes a little over 10h 15m.

  • When did momondo last update prices for flights from London to Houston?

    Prices for flights from London to Houston are refreshed on a daily basis.

  • How many operators does momondo search for flights from London to Houston?

  • How old do you have to be to fly from London to Houston?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Houston.

  • What documentation or ID do you need to fly to Houston?

    The necessary travel and health documents for your Houston trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from London to Houston

Compare and see reviews for airlines that fly from London to Houston with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $730Free CancellationRating
6.7
7,363 reviews
Search British Airways flights
United AirlinesPriceFrom $759Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
Austrian AirlinesPriceFrom $803Free CancellationRating
7.6
850 reviews
Search Austrian Airlines flights
LufthansaPriceFrom $830Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
IberiaPriceFrom $982Free CancellationRating
7.0
2,924 reviews
Search Iberia flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Houston?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Houston from London.

Can I find flights from London to Houston with flexible booking policies on momondo?

momondo does allow users to show only those flights to Houston from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Houston?

momondo helps you find the best flight between London and Houston by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Houston right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Houston now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Houston and let you know when they change.

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