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Cheap flights from London to Houston from £181

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 return flights

Logo
14:00 - 08:24LGW-IAH
24h 24m1 stop
Logo
17:48 - 10:00IAH-LGW
34h 12m1 stop
£309
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Fri, 12 Sep - Sun, 21 Sep
Logo
14:00 - 08:24LGW-IAH
24h 24m1 stop
Logo
17:48 - 10:00IAH-LGW
34h 12m1 stop
£332
Find Deal
Fri, 12 Sep - Thu, 2 Oct
United Airlines Logo
06:30 - 17:50LHR-IAH
17h 20m1 stop
United Airlines Logo
19:50 - 06:20IAH-LHR
28h 30m1 stop
£484United Airlines
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Sat, 23 Aug - Sat, 23 Aug
United Airlines Logo
10:00 - 14:15LHR-IAH
10h 15mdirect
United Airlines Logo
18:50 - 06:20IAH-LHR
29h 30m1 stop
£507United Airlines
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Sat, 23 Aug - Sat, 23 Aug
Icelandair Logo
08:25 - 13:40LHR-IAH
35h 15m1 stop
Icelandair Logo
14:39 - 06:30IAH-LHR
33h 51m1 stop
£520Icelandair
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Mon, 8 Sep - Mon, 6 Oct
JetBlue Logo
08:25 - 13:41LHR-IAH
35h 16m1 stop
JetBlue Logo
14:35 - 06:30IAH-LHR
33h 55m1 stop
£526JetBlue
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Tue, 2 Sep - Tue, 16 Sep
JetBlue Logo
08:25 - 11:35LHR-IAH
33h 10m1 stop
JetBlue Logo
14:35 - 06:30IAH-LHR
33h 55m1 stop
£533JetBlue
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Mon, 1 Sep - Mon, 15 Sep
Icelandair Logo
08:25 - 13:41LHR-IAH
35h 16m1 stop
Icelandair Logo
14:35 - 06:30IAH-LHR
33h 55m1 stop
£550Icelandair
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Thu, 4 Sep - Sun, 14 Sep
Lufthansa Logo
08:45 - 17:50LCY-IAH
15h 05m1 stop
Lufthansa Logo
18:20 - 16:25IAH-LCY
16h 05m1 stop
£684Lufthansa
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Wed, 24 Sep - Tue, 30 Sep
Lufthansa Logo
09:50 - 18:15LCY-IAH
14h 25m1 stop
Lufthansa Logo
18:55 - 16:30IAH-LCY
15h 35m1 stop
£689Lufthansa
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Wed, 5 Nov - Sun, 9 Nov

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
24 Sept
LCY08:45London City
15h 05m
1 stop
IAH17:50Houston George Bush Intcntl
30 Sept
IAH18:20Houston George Bush Intcntl
16h 05m
1 stop
LCY16:25London City
£684
Find similar
Lufthansa
5 Nov
LCY09:50London City
14h 25m
1 stop
IAH18:15Houston George Bush Intcntl
9 Nov
IAH18:55Houston George Bush Intcntl
15h 35m
1 stop
LCY16:30London City
£689
Find similar
Lufthansa
19 Sept
LCY08:55London City
14h 55m
1 stop
IAH17:50Houston George Bush Intcntl
23 Sept
IAH18:20Houston George Bush Intcntl
16h 05m
1 stop
LCY16:25London City
£692
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SWISS flights from London to Houston George Bush Intcntl Airport

Our best SWISS deals on London to Houston George Bush Intcntl Airport flight tickets
SWISS
5 Sept
LCY09:25London City
16h 48m
2 stops
IAH20:13Houston George Bush Intcntl
26 Nov
IAH12:15Houston George Bush Intcntl
22h 50m
2 stops
LCY17:05London City
£756
Find similar
SWISS
27 Aug
LCY19:20London City
25h 25m
2 stops
IAH14:45Houston George Bush Intcntl
3 Sept
IAH12:22Houston George Bush Intcntl
38h 28m
2 stops
LCY08:50London City
£806
Find similar
SWISS
15 Oct
LCY09:25London City
35h 25m
2 stops
IAH14:50Houston George Bush Intcntl
5 Nov
IAH15:55Houston George Bush Intcntl
19h 10m
2 stops
LCY17:05London City
£812
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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 31 July 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 12/9

14:00-08:24

1 stop24h 24m

Houston George Bush Intcntl

Sun 21/9

17:48-10:00

1 stop34h 12m

£309

LondonHouston

LGW - IAH

LGWIAH

London Gatwick

Fri 12/9

14:00-08:24

1 stop24h 24m

Houston George Bush Intcntl

Thu 2/10

17:48-10:00

1 stop34h 12m

£332

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Sat 23/8

06:30-17:50

1 stop17h 20m

Houston George Bush Intcntl

Sat 23/8

19:50-06:20

1 stop28h 30m

£484

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Sat 23/8

10:00-14:15

Nonstop10h 15m

Houston George Bush Intcntl

Sat 23/8

18:50-06:20

1 stop29h 30m

£507

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Mon 8/9

08:25-13:40

1 stop35h 15m

Houston George Bush Intcntl

Mon 6/10

14:39-06:30

1 stop33h 51m

£520

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 2/9

08:25-13:41

1 stop35h 16m

Houston George Bush Intcntl

Tue 16/9

14:35-06:30

1 stop33h 55m

£526

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Mon 1/9

08:25-11:35

1 stop33h 10m

Houston George Bush Intcntl

Mon 15/9

14:35-06:30

1 stop33h 55m

£533

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Thu 4/9

08:25-13:41

1 stop35h 16m

Houston George Bush Intcntl

Sun 14/9

14:35-06:30

1 stop33h 55m

£550

LondonHouston

LCY - IAH

LCYIAH

London City

Wed 24/9

08:45-17:50

1 stop15h 05m

Houston George Bush Intcntl

Tue 30/9

18:20-16:25

1 stop16h 05m

£684

LondonHouston

LCY - IAH

LCYIAH

London City

Wed 5/11

09:50-18:15

1 stop14h 25m

Houston George Bush Intcntl

Sun 9/11

18:55-16:30

1 stop15h 35m

£689

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 £611. 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 £617.

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 £691. The most expensive day to fly to Houston George Bush Intcntl Airport is Sunday, with ticket prices averaging around £771.

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 £631. Try not to purchase tickets at midday because they tend to be around £737. 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 £737 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 £624 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 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 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

£181

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 £181. The best return flight deal from London to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is £309.
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 £385Free CancellationRating
7.2
2,975 reviews
Search WestJet flights
JetBluePriceFrom £461Free CancellationRating
7.2
2,913 reviews
Search JetBlue flights
IcelandairPriceFrom £476Free CancellationRating
7.0
519 reviews
Search Icelandair flights
LufthansaPriceFrom £496Free CancellationRating
6.8
7,269 reviews
Search Lufthansa flights
FinnairPriceFrom £504Free CancellationRating
7.6
1,316 reviews
Search Finnair flights
British AirwaysPriceFrom £542Free CancellationRating
6.6
7,217 reviews
Search British Airways flights
Virgin AtlanticPriceFrom £587Free CancellationRating
7.4
655 reviews
Search Virgin Atlantic flights
Austrian AirlinesPriceFrom £599Free CancellationRating
7.6
823 reviews
Search Austrian Airlines flights
United AirlinesPriceFrom £606Free CancellationRating
7.4
8,896 reviews
Search United Airlines flights
IberiaPriceFrom £612Free CancellationRating
7.0
2,859 reviews
Search Iberia flights

  • Finnair Flights From London to Houston George Bush Intcntl Airport

    Finnair flight deals from London to Houston George Bush Intcntl Airport start from £671 round-trip. Over the 13 Finnair flights for this route in a normal week, average airfare is usually £820 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 £1,093, however, with flight time and availability significantly affecting the price. Austrian Airlines (7.6/10 from 823 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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