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Cheap flights from London to Houston from £277

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 1/11. 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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0 bags

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Cheap return flights

Logo
07:25 - 08:32LGW-IAH
31h 07m3 stops
Logo
07:00 - 09:50IAH-LGW
20h 50m2 stops
£570
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Wed, 19 Nov - Wed, 26 Nov
United Airlines Logo
12:00 - 23:48LHR-IAH
17h 48m1 stop
United Airlines Logo
06:02 - 10:25IAH-LHR
22h 23m1 stop
£570United Airlines
Find Deal
Wed, 12 Nov - Sun, 16 Nov
JetBlue Logo
09:20 - 17:51LHR-IAH
14h 31m1 stop
JetBlue Logo
13:38 - 06:55IAH-LHR
11h 17m1 stop
£572JetBlue
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Fri, 14 Nov - Wed, 19 Nov
Icelandair Logo
11:55 - 13:40LHR-IAH
31h 45m2 stops
Icelandair Logo
14:45 - 20:45IAH-LHR
24h 00m2 stops
£573Icelandair
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Fri, 3 Oct - Wed, 22 Oct
Icelandair Logo
08:25 - 13:40LHR-IAH
35h 15m1 stop
Icelandair Logo
14:35 - 06:30IAH-LHR
33h 55m1 stop
£582Icelandair
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Wed, 24 Sep - Thu, 2 Oct
JetBlue Logo
12:20 - 17:51LHR-IAH
34h 31m2 stops
JetBlue Logo
13:38 - 06:55IAH-LHR
11h 17m1 stop
£589JetBlue
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Thu, 30 Oct - Tue, 4 Nov
Lufthansa Logo
09:30 - 17:50LHR-IAH
14h 20m1 stop
Lufthansa Logo
20:15 - 11:35IAH-LHR
9h 20mdirect
£597Lufthansa
Find Deal
Tue, 23 Sep - Sun, 28 Sep
Lufthansa Logo
09:30 - 17:50LHR-IAH
14h 20m1 stop
Lufthansa Logo
20:15 - 11:35IAH-LHR
9h 20mdirect
£598Lufthansa
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Wed, 24 Sep - Mon, 29 Sep
British Airways Logo
09:25 - 13:40LHR-IAH
10h 15mdirect
British Airways Logo
21:00 - 12:20IAH-LHR
9h 20mdirect
£600British Airways
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Wed, 24 Sep - Sat, 11 Oct
British Airways Logo
09:20 - 13:35LHR-IAH
10h 15mdirect
British Airways Logo
15:30 - 06:40IAH-LHR
9h 10mdirect
£601British Airways
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Sat, 27 Sep - Sat, 4 Oct

JetBlue flights from London to Houston George Bush Intcntl Airport

Our best JetBlue deals on London to Houston George Bush Intcntl Airport flight tickets
JetBlue
14 Nov
LHR09:20London Heathrow
14h 31m
1 stop
IAH17:51Houston George Bush Intcntl
19 Nov
IAH13:38Houston George Bush Intcntl
11h 17m
1 stop
LHR06:55London Heathrow
£572
Find similar
JetBlue
30 Oct
LHR12:20London Heathrow
34h 31m
2 stops
IAH17:51Houston George Bush Intcntl
4 Nov
IAH13:38Houston George Bush Intcntl
11h 17m
1 stop
LHR06:55London Heathrow
£589
Find similar
JetBlue
24 Sept
LHR08:25London Heathrow
35h 15m
1 stop
IAH13:40Houston George Bush Intcntl
29 Sept
IAH14:35Houston George Bush Intcntl
33h 55m
1 stop
LHR06:30London Heathrow
£591
Find similar

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
19 Sept
LHR07:30London Heathrow
16h 20m
1 stop
IAH17:50Houston George Bush Intcntl
4 Oct
IAH16:20Houston George Bush Intcntl
9h 20m
LHR07:40London Heathrow
£593
Find similar
Lufthansa
23 Sept
LHR09:30London Heathrow
14h 20m
1 stop
IAH17:50Houston George Bush Intcntl
28 Sept
IAH20:15Houston George Bush Intcntl
9h 20m
LHR11:35London Heathrow
£597
Find similar
Lufthansa
24 Sept
LHR09:30London Heathrow
14h 20m
1 stop
IAH17:50Houston George Bush Intcntl
29 Sept
IAH20:15Houston George Bush Intcntl
9h 20m
LHR11:35London Heathrow
£598
Find similar

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 12 September 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

Wed 19/11

07:25-08:32

3 stops31h 07m

Houston George Bush Intcntl

Wed 26/11

07:00-09:50

2 stops20h 50m

£570

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 12/11

12:00-23:48

1 stop17h 48m

Houston George Bush Intcntl

Sun 16/11

06:02-10:25

1 stop22h 23m

£570

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Fri 14/11

09:20-17:51

1 stop14h 31m

Houston George Bush Intcntl

Wed 19/11

13:38-06:55

1 stop11h 17m

£572

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Fri 3/10

11:55-13:40

2 stops31h 45m

Houston George Bush Intcntl

Wed 22/10

14:45-20:45

2 stops24h 00m

£573

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 24/9

08:25-13:40

1 stop35h 15m

Houston George Bush Intcntl

Thu 2/10

14:35-06:30

1 stop33h 55m

£582

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Thu 30/10

12:20-17:51

2 stops34h 31m

Houston George Bush Intcntl

Tue 4/11

13:38-06:55

1 stop11h 17m

£589

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 23/9

09:30-17:50

1 stop14h 20m

Houston George Bush Intcntl

Sun 28/9

20:15-11:35

Nonstop9h 20m

£597

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 24/9

09:30-17:50

1 stop14h 20m

Houston George Bush Intcntl

Mon 29/9

20:15-11:35

Nonstop9h 20m

£598

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 24/9

09:25-13:40

Nonstop10h 15m

Houston George Bush Intcntl

Sat 11/10

21:00-12:20

Nonstop9h 20m

£600

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Sat 27/9

09:20-13:35

Nonstop10h 15m

Houston George Bush Intcntl

Sat 4/10

15:30-06:40

Nonstop9h 10m

£601

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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?

In general, March is the cheapest month to fly from London to Houston George Bush Intcntl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £603. If you aren’t able to travel to Houston George Bush Intcntl Airport during the month of March, then flying in January is also cheap. Prices for this month can be found on momondo for an average of £607.

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

Our data shows that Wednesday is the least expensive day to fly to Houston George Bush Intcntl Airport. Tickets to fly out on this day can be as low as £674. The most expensive day to fly to Houston George Bush Intcntl Airport is Sunday, with ticket prices averaging around £747.

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 £620. Try not to purchase tickets in the morning because they tend to be around £713. 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 £727 when searching weeks before you fly. 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 £658 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?

No. A direct flight is the cheapest option for a flight between London to Houston George Bush Intcntl Airport.

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

As of September 2025, prices for London to Houston George Bush Intcntl Airport flights are approximately 61% 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 return 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

£668

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 £668. The best return flight deal from London to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is £644.
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?

    A flight from London to Houston George Bush Intcntl will travel around 4832.8 mi. A reasonable flight in good conditions will take 10h 15m.

  • 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?

    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 George Bush Intcntl Airport.

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

    The travel and health documents required for your trip to Houston George Bush Intcntl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Houston George Bush Intcntl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • 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
WestJetPriceFrom £379Free CancellationRating
7.2
3,091 reviews
Search WestJet flights
JetBluePriceFrom £453Free CancellationRating
7.2
2,913 reviews
Search JetBlue flights
IcelandairPriceFrom £468Free CancellationRating
7.0
546 reviews
Search Icelandair flights
LufthansaPriceFrom £492Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
FinnairPriceFrom £501Free CancellationRating
7.6
1,323 reviews
Search Finnair flights
British AirwaysPriceFrom £533Free CancellationRating
6.6
7,361 reviews
Search British Airways flights
Air CanadaPriceFrom £548Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
Virgin AtlanticPriceFrom £559Free CancellationRating
7.4
664 reviews
Search Virgin Atlantic flights
Austrian AirlinesPriceFrom £588Free CancellationRating
7.6
850 reviews
Search Austrian Airlines flights
United AirlinesPriceFrom £596Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights

  • Finnair Flights From London to Houston George Bush Intcntl Airport

    Finnair flight deals from London to Houston George Bush Intcntl Airport start from £678 round-trip. Over the 13 Finnair flights for this route in a normal week, average airfare is usually £838 round-trip - but some users have found much cheaper deals with momondo.

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

    £797 is the best Austrian Airlines flight deal from London to Houston George Bush Intcntl Airport found on momondo over the last 72 hours. The average Austrian Airlines ticket price found was closer to £1,084, however, with flight time and availability significantly affecting the price. Austrian Airlines (7.6/10 from 850 user reviews) flies into Houston George Bush Intcntl Airport from London 14 times in an average week so prices can vary.

Travelling to a place near Houston?

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

Why use momondo?

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

Finding the right flight to Houston from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Houston quick and easy, saving you time and money.

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

Yes. All flights to Houston from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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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