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Cheap flights from London to Houston from $241

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 9/9. 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

Logo
2:00 pm - 8:24 amLGW-IAH
24h 24m1 stop
Logo
5:48 pm - 10:00 amIAH-LGW
34h 12m1 stop
$411
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Sun, Sep 14 - Sun, Sep 21
Logo
2:00 pm - 8:24 amLGW-IAH
24h 24m1 stop
Logo
5:48 pm - 10:00 amIAH-LGW
34h 12m1 stop
$412
Find Deal
Fri, Sep 12 - Sun, Sep 21
United Airlines Logo
6:30 am - 5:50 pmLHR-IAH
17h 20m1 stop
United Airlines Logo
7:50 pm - 6:20 amIAH-LHR
28h 30m1 stop
$645United Airlines
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Sat, Aug 23 - Sat, Aug 23
United Airlines Logo
10:00 am - 2:15 pmLHR-IAH
10h 15mnonstop
United Airlines Logo
6:50 pm - 6:20 amIAH-LHR
29h 30m1 stop
$675United Airlines
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Sat, Aug 23 - Sat, Aug 23
Icelandair Logo
8:25 am - 1:40 pmLHR-IAH
35h 15m1 stop
Icelandair Logo
2:39 pm - 6:30 amIAH-LHR
33h 51m1 stop
$692Icelandair
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Mon, Sep 8 - Mon, Oct 6
JetBlue Logo
8:25 am - 1:41 pmLHR-IAH
35h 16m1 stop
JetBlue Logo
2:35 pm - 6:30 amIAH-LHR
33h 55m1 stop
$701JetBlue
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Tue, Sep 2 - Tue, Sep 16
JetBlue Logo
8:25 am - 11:35 amLHR-IAH
33h 10m1 stop
JetBlue Logo
2:35 pm - 6:30 amIAH-LHR
33h 55m1 stop
$710JetBlue
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Mon, Sep 1 - Mon, Sep 15
Icelandair Logo
8:25 am - 1:41 pmLHR-IAH
35h 16m1 stop
Icelandair Logo
2:35 pm - 6:30 amIAH-LHR
33h 55m1 stop
$727Icelandair
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Thu, Sep 4 - Sun, Sep 14
Lufthansa Logo
8:45 am - 5:50 pmLCY-IAH
15h 05m1 stop
Lufthansa Logo
6:20 pm - 4:25 pmIAH-LCY
16h 05m1 stop
$911Lufthansa
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Wed, Sep 24 - Tue, Sep 30
Lufthansa Logo
7:50 pm - 4:35 pmSTN-IAH
26h 45m1 stop
Lufthansa Logo
4:45 pm - 7:00 pmIAH-STN
20h 15m1 stop
$916Lufthansa
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Wed, Sep 24 - Thu, Oct 2

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
Sep 24
LCY8:45 amLondon City
15h 05m
1 stop
IAH5:50 pmHouston George Bush Intcntl
Sep 30
IAH6:20 pmHouston George Bush Intcntl
16h 05m
1 stop
LCY4:25 pmLondon City
$911
Find similar
Lufthansa
Sep 24
STN7:50 pmLondon Stansted
26h 45m
1 stop
IAH4:35 pmHouston George Bush Intcntl
Oct 2
IAH4:45 pmHouston George Bush Intcntl
20h 15m
1 stop
STN7:00 pmLondon Stansted
$916
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Lufthansa
Nov 5
LCY9:50 amLondon City
14h 25m
1 stop
IAH6:15 pmHouston George Bush Intcntl
Nov 9
IAH6:55 pmHouston George Bush Intcntl
15h 35m
1 stop
LCY4:30 pmLondon City
$918
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Icelandair flights from London to Houston George Bush Intcntl Airport

Our best Icelandair deals on London to Houston George Bush Intcntl Airport flight tickets
Icelandair
Sep 8
LHR8:25 amLondon Heathrow
35h 15m
1 stop
IAH1:40 pmHouston George Bush Intcntl
Oct 6
IAH2:39 pmHouston George Bush Intcntl
33h 51m
1 stop
LHR6:30 amLondon Heathrow
$692
Find similar
Icelandair
Sep 4
LHR8:25 amLondon Heathrow
35h 16m
1 stop
IAH1:41 pmHouston George Bush Intcntl
Sep 14
IAH2:35 pmHouston George Bush Intcntl
33h 55m
1 stop
LHR6:30 amLondon Heathrow
$727
Find similar
Icelandair
Sep 4
LHR8:25 amLondon Heathrow
35h 16m
1 stop
IAH1:41 pmHouston George Bush Intcntl
Sep 14
IAH2:35 pmHouston George Bush Intcntl
33h 55m
1 stop
LHR6:30 amLondon Heathrow
$732
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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 July 31, 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

Sun 9/14

2:00 pm-8:24 am

1 stop24h 24m

Houston George Bush Intcntl

Sun 9/21

5:48 pm-10:00 am

1 stop34h 12m

$411

LondonHouston

LGW - IAH

LGWIAH

London Gatwick

Fri 9/12

2:00 pm-8:24 am

1 stop24h 24m

Houston George Bush Intcntl

Sun 9/21

5:48 pm-10:00 am

1 stop34h 12m

$412

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Sat 8/23

6:30 am-5:50 pm

1 stop17h 20m

Houston George Bush Intcntl

Sat 8/23

7:50 pm-6:20 am

1 stop28h 30m

$645

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Sat 8/23

10:00 am-2:15 pm

Nonstop10h 15m

Houston George Bush Intcntl

Sat 8/23

6:50 pm-6:20 am

1 stop29h 30m

$675

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Mon 9/8

8:25 am-1:40 pm

1 stop35h 15m

Houston George Bush Intcntl

Mon 10/6

2:39 pm-6:30 am

1 stop33h 51m

$692

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 9/2

8:25 am-1:41 pm

1 stop35h 16m

Houston George Bush Intcntl

Tue 9/16

2:35 pm-6:30 am

1 stop33h 55m

$701

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Mon 9/1

8:25 am-11:35 am

1 stop33h 10m

Houston George Bush Intcntl

Mon 9/15

2:35 pm-6:30 am

1 stop33h 55m

$710

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Thu 9/4

8:25 am-1:41 pm

1 stop35h 16m

Houston George Bush Intcntl

Sun 9/14

2:35 pm-6:30 am

1 stop33h 55m

$727

LondonHouston

LCY - IAH

LCYIAH

London City

Wed 9/24

8:45 am-5:50 pm

1 stop15h 05m

Houston George Bush Intcntl

Tue 9/30

6:20 pm-4:25 pm

1 stop16h 05m

$911

LondonHouston

STN - IAH

STNIAH

London Stansted

Wed 9/24

7:50 pm-4:35 pm

1 stop26h 45m

Houston George Bush Intcntl

Thu 10/2

4:45 pm-7:00 pm

1 stop20h 15m

$916

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 March is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from London, with most prices found around $814. If you are unable to visit Houston George Bush Intcntl Airport during the month of March, then departing from London during the month January is also very affordable. Most momondo users find prices during this month for around $822.

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 Tuesday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Tuesday will often find tickets for as low as $982. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Monday is $1,071.

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 afternoon. Our users have found flights to Houston George Bush Intcntl Airport in the afternoon for as low as $793. Try not to purchase tickets at noon because they tend to be around $1,044. 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 $982 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 $831 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 17% 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 July 2025, prices for London to Houston George Bush Intcntl Airport flights are approximately 25% 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

$241

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 $241. The best round-trip flight deal from London to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is $411.
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 10h 15m 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
United AirlinesPriceFrom $759Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
British AirwaysPriceFrom $768Free CancellationRating
6.6
7,222 reviews
Search British Airways flights
LufthansaPriceFrom $830Free CancellationRating
6.8
7,275 reviews
Search Lufthansa flights
IberiaPriceFrom $982Free CancellationRating
7.0
2,859 reviews
Search Iberia flights

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

    Across 14 United Airlines flights from London to Houston George Bush Intcntl Airport this week, the average price was $1,162, with the best United Airlines deals starting from $759 round-trip. 8,900 users have rated United Airlines on momondo, with an average score of 7.4/10.

  • Iberia Flights From London to Houston George Bush Intcntl Airport

    Another popular option for London to Houston George Bush Intcntl Airport flights is Iberia (7.0/10, 2,859 ratings). Iberia flies from London to Houston George Bush Intcntl Airport around 13 times per week, with deals starting from $982 round-trip and rising to an average price of around $1,442.

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
The Woodlands
Katy
Conroe
Humble
Cypress
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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