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Cheap flights from London to Houston from $433

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 11/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Multiple Airlines Logo
2:00 pm - 5:26 pmLGW-IAH
33h 26m2 stops
Multiple Airlines Logo
5:14 am - 6:00 amIAH-LGW
18h 46m1 stop
$752Multiple Airlines
Find Deal
Fri, Nov 7 - Tue, Nov 11
WestJet Logo
2:50 pm - 12:44 pmLHR-IAH
27h 54m1 stop
WestJet Logo
1:35 pm - 12:50 pmIAH-LHR
17h 15m1 stop
$752WestJet
Find Deal
Sun, Nov 23 - Wed, Nov 26
Multiple Airlines Logo
11:55 am - 7:24 amLGW-IAH
25h 29m3 stops
Multiple Airlines Logo
8:35 pm - 10:55 amIAH-LGW
32h 20m3 stops
$755Multiple Airlines
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Sun, Nov 23 - Wed, Dec 3
Icelandair Logo
8:05 am - 12:41 pmLHR-IAH
34h 36m2 stops
Icelandair Logo
6:45 pm - 6:55 amIAH-LHR
30h 10m1 stop
$759Icelandair
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Fri, Dec 5 - Sun, Dec 14
JetBlue Logo
9:20 am - 12:41 pmLHR-IAH
33h 21m1 stop
JetBlue Logo
6:45 pm - 6:55 amIAH-LHR
30h 10m1 stop
$762JetBlue
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Wed, Dec 10 - Tue, Dec 16
Icelandair Logo
9:20 am - 9:37 amLHR-IAH
30h 17m1 stop
Icelandair Logo
8:10 pm - 6:55 amIAH-LHR
28h 45m1 stop
$763Icelandair
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Sat, Nov 22 - Wed, Nov 26
JetBlue Logo
9:20 am - 5:51 pmLHR-IAH
14h 31m1 stop
JetBlue Logo
1:36 pm - 6:55 amIAH-LHR
11h 19m1 stop
$767JetBlue
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Tue, Nov 18 - Tue, Dec 16
United Airlines Logo
4:20 pm - 8:19 pmLHR-IAH
33h 59m1 stop
United Airlines Logo
6:36 pm - 7:55 amIAH-LHR
31h 19m1 stop
$809United Airlines
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Thu, Nov 20 - Sat, Nov 22
British Airways Logo
8:40 am - 10:24 pmLCY-IAH
19h 44m2 stops
British Airways Logo
8:00 am - 2:35 pmIAH-LCY
24h 35m2 stops
$1,096British Airways
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Wed, Jan 7 - Mon, Jan 19
British Airways Logo
7:50 am - 10:24 pmLCY-IAH
20h 34m2 stops
British Airways Logo
6:10 pm - 2:35 pmIAH-LCY
38h 25m2 stops
$1,121British Airways
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Thu, Jan 22 - Sun, Feb 1

Lufthansa flights from London to Houston George Bush Intcntl Airport

Our best Lufthansa deals on London to Houston George Bush Intcntl Airport flight tickets
Lufthansa
Nov 19
LCY9:50 amLondon City
14h 25m
1 stop
IAH6:15 pmHouston George Bush Intcntl
Nov 27
IAH6:55 pmHouston George Bush Intcntl
15h 45m
1 stop
LCY4:40 pmLondon City
$1,063
Find similar
Lufthansa
Nov 17
LCY9:50 amLondon City
14h 25m
1 stop
IAH6:15 pmHouston George Bush Intcntl
Nov 24
IAH6:55 pmHouston George Bush Intcntl
15h 45m
1 stop
LCY4:40 pmLondon City
$1,084
Find similar
Lufthansa
Dec 2
LCY9:50 amLondon City
14h 25m
1 stop
IAH6:15 pmHouston George Bush Intcntl
Dec 9
IAH6:55 pmHouston George Bush Intcntl
15h 45m
1 stop
LCY4:40 pmLondon City
$1,098
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Scandinavian Airlines flights from London to Houston George Bush Intcntl Airport

Our best Scandinavian Airlines deals on London to Houston George Bush Intcntl Airport flight tickets
Scandinavian Airlines
Nov 18
LHR6:40 amLondon Heathrow
23h 16m
2 stops
IAH11:56 pmHouston George Bush Intcntl
Dec 10
IAH4:00 pmHouston George Bush Intcntl
23h 40m
2 stops
LHR9:40 pmLondon Heathrow
$779
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Scandinavian Airlines
Nov 18
LHR10:20 amLondon Heathrow
19h 36m
2 stops
IAH11:56 pmHouston George Bush Intcntl
Dec 10
IAH4:00 pmHouston George Bush Intcntl
19h 40m
2 stops
LHR5:40 pmLondon Heathrow
$780
Find similar
Scandinavian Airlines
Nov 18
LHR7:05 amLondon Heathrow
22h 51m
3 stops
IAH11:56 pmHouston George Bush Intcntl
Dec 10
IAH4:00 pmHouston George Bush Intcntl
23h 40m
2 stops
LHR9:40 pmLondon Heathrow
$829
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London to Houston George Bush Intcntl Airport 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 November 4, 2025.
Use the filters below to find and compare flights from London to Houston George Bush Intcntl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonHouston

LGW - IAH

LGWIAH

London Gatwick

Fri 11/7

2:00 pm-5:26 pm

2 stops33h 26m

Houston George Bush Intcntl

Tue 11/11

5:14 am-6:00 am

1 stop18h 46m

$752

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Sun 11/23

2:50 pm-12:44 pm

1 stop27h 54m

Houston George Bush Intcntl

Wed 11/26

1:35 pm-12:50 pm

1 stop17h 15m

$752

LondonHouston

LGW - IAH

LGWIAH

London Gatwick

Sun 11/23

11:55 am-7:24 am

3 stops25h 29m

Houston George Bush Intcntl

Wed 12/3

8:35 pm-10:55 am

3 stops32h 20m

$755

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Fri 12/5

8:05 am-12:41 pm

2 stops34h 36m

Houston George Bush Intcntl

Sun 12/14

6:45 pm-6:55 am

1 stop30h 10m

$759

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 12/10

9:20 am-12:41 pm

1 stop33h 21m

Houston George Bush Intcntl

Tue 12/16

6:45 pm-6:55 am

1 stop30h 10m

$762

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Sat 11/22

9:20 am-9:37 am

1 stop30h 17m

Houston George Bush Intcntl

Wed 11/26

8:10 pm-6:55 am

1 stop28h 45m

$763

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 11/18

9:20 am-5:51 pm

1 stop14h 31m

Houston George Bush Intcntl

Tue 12/16

1:36 pm-6:55 am

1 stop11h 19m

$767

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Thu 11/20

4:20 pm-8:19 pm

1 stop33h 59m

Houston George Bush Intcntl

Sat 11/22

6:36 pm-7:55 am

1 stop31h 19m

$809

LondonHouston

LCY - IAH

LCYIAH

London City

Wed 1/7

8:40 am-10:24 pm

2 stops19h 44m

Houston George Bush Intcntl

Mon 1/19

8:00 am-2:35 pm

2 stops24h 35m

$1,096

LondonHouston

LCY - IAH

LCYIAH

London City

Thu 1/22

7:50 am-10:24 pm

2 stops20h 34m

Houston George Bush Intcntl

Sun 2/1

6:10 pm-2:35 pm

2 stops38h 25m

$1,121

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 George Bush Intcntl Airport

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 George Bush Intcntl Airport?

What is the cheapest month to fly to Houston George Bush Intcntl Airport?

The month of January is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from London, with most prices found around $822. If you are unable to visit Houston George Bush Intcntl Airport during the month of January, then departing from London during the month March is also very affordable. Most momondo users find prices during this month for around $836.

What is the cheapest day to depart on your flight to Houston George Bush Intcntl Airport?

The cheapest day to depart from London to Houston George Bush Intcntl Airport is on a Thursday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Thursday will often find tickets for as low as $947. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Friday is $1,059.

What is the cheapest time of day to depart on your flight to Houston George Bush Intcntl Airport?

Our data shows that the cheapest London to Houston George Bush Intcntl Airport flights are usually those with departure times in the evening. Our users have found flights to Houston George Bush Intcntl Airport in the evening for as low as $826. Try not to purchase tickets in the morning because they tend to be around $991. 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 George Bush Intcntl flight route?

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

How far in advance should I book a flight to Houston George Bush Intcntl Airport?

You are more likely to see cheaper flights to Houston George Bush Intcntl Airport from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston George Bush Intcntl Airport for around $999 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston George Bush Intcntl Airport from London for as low as $870 on momondo.

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

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

Can stopping save me money on London to Houston George Bush Intcntl Airport flights?

You could potentially save up to 6% on your flight if you consider stops on a London to Houston George Bush Intcntl Airport flight.

How have London to Houston George Bush Intcntl Airport flight prices changed over time?

As of November 2025, prices for London to Houston George Bush Intcntl Airport flights are approximately 66% more expensive when compared to flights at the same time last year.

When to book flights from London to Houston George Bush Intcntl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London to Houston George Bush Intcntl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London to Houston George Bush Intcntl Airport (LON to IAH) flight deals and tips

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

Best Price Found

$797

Fastest flight time

10h 15m

Direct flights

Every day
The best one-way flight to Houston George Bush Intcntl Airport from London in the past 72 hours is $797. The best round-trip flight deal from London to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is $856.
The fastest flight from London to Houston George Bush Intcntl Airport takes 10h 15m
Direct flights go from London to Houston George Bush Intcntl Airport every day.
Search flight deals

  • How far is London to Houston George Bush Intcntl by plane?

    The straight-line distance from London to Houston George Bush Intcntl is 4832.8 mi. Typically, this will take 14h 20m by plane in normal conditions.

  • When did momondo last update prices for flights from London to Houston George Bush Intcntl Airport?

    Prices for flights from London to Houston George Bush Intcntl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from London to Houston George Bush Intcntl Airport?

  • How old do you have to be to fly from London to Houston George Bush Intcntl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Houston George Bush Intcntl Airport.

  • What documentation or ID do you need to fly to Houston George Bush Intcntl Airport?

    The travel and health documents you'll need for your trip to Houston George Bush Intcntl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Houston George Bush Intcntl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from London to Houston George Bush Intcntl Airport?

  • What is the most popular airline from London to Houston George Bush Intcntl Airport?

Best airlines flying from London to Houston George Bush Intcntl Airport

Compare and see reviews for airlines that fly from London to Houston George Bush Intcntl Airport with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $652Free CancellationRating
6.8
7,553 reviews
Search Lufthansa flights
British AirwaysPriceFrom $768Free CancellationRating
6.7
7,496 reviews
Search British Airways flights
Austrian AirlinesPriceFrom $803Free CancellationRating
7.6
864 reviews
Search Austrian Airlines flights
United AirlinesPriceFrom $825Free CancellationRating
7.4
9,001 reviews
Search United Airlines flights
American AirlinesPriceFrom $833Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights

  • Austrian Airlines Flights From London to Houston George Bush Intcntl Airport

    Across 14 Austrian Airlines flights from London to Houston George Bush Intcntl Airport this week, the average price was $1,217, with the best Austrian Airlines deals starting from $803 round-trip. 864 users have rated Austrian Airlines on momondo, with an average score of 7.6/10.

  • United Airlines Flights From London to Houston George Bush Intcntl Airport

    Another popular option for London to Houston George Bush Intcntl Airport flights is United Airlines (7.4/10, 9,001 ratings). United Airlines flies from London to Houston George Bush Intcntl Airport around 14 times per week, with deals starting from $825 round-trip and rising to an average price of around $1,162.

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
The Woodlands
Katy
Conroe
Cypress
Humble
Spring
Montgomery
Tomball
Livingston
Jersey Village

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?

Yes. momondo allows you to filter the results for London to Houston flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Houston from London.

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

Yes. momondo can track prices for London to Houston flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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