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Cheap flights from London to Houston from £329

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 21/11. 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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WestJet Logo
14:50 - 12:44LHR-IAH
27h 54m1 stop
WestJet Logo
13:35 - 12:50IAH-LHR
17h 15m1 stop
£575WestJet
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Sun, 23 Nov - Wed, 26 Nov
Multiple Airlines Logo
11:55 - 07:24LGW-IAH
25h 29m3 stops
Multiple Airlines Logo
20:35 - 10:55IAH-LGW
32h 20m3 stops
£578Multiple Airlines
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Sun, 23 Nov - Wed, 3 Dec
Multiple Airlines Logo
12:15 - 23:59LHR-IAH
17h 44m2 stops
Multiple Airlines Logo
08:29 - 19:30IAH-LHR
29h 01m2 stops
£578Multiple Airlines
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Mon, 17 Nov - Mon, 1 Dec
Icelandair Logo
12:20 - 11:40LHR-IAH
29h 20m2 stops
Icelandair Logo
12:30 - 06:55IAH-LHR
12h 25m1 stop
£582Icelandair
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Thu, 5 Feb - Wed, 11 Feb
Icelandair Logo
09:20 - 09:37LHR-IAH
30h 17m1 stop
Icelandair Logo
20:10 - 06:55IAH-LHR
28h 45m1 stop
£584Icelandair
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Sat, 22 Nov - Wed, 26 Nov
United Airlines Logo
16:20 - 20:19LHR-IAH
33h 59m1 stop
United Airlines Logo
18:36 - 07:55IAH-LHR
31h 19m1 stop
£619United Airlines
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Thu, 20 Nov - Sat, 22 Nov
Lufthansa Logo
09:50 - 19:15LCY-IAH
14h 25m1 stop
Lufthansa Logo
19:55 - 17:40IAH-LCY
16h 45m1 stop
£801Lufthansa
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Wed, 11 Mar - Thu, 19 Mar
Lufthansa Logo
09:50 - 18:15LCY-IAH
14h 25m1 stop
Lufthansa Logo
18:55 - 16:40IAH-LCY
15h 45m1 stop
£813Lufthansa
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Wed, 19 Nov - Thu, 27 Nov
British Airways Logo
19:15 - 00:19LCY-IAH
34h 04m2 stops
British Airways Logo
20:21 - 14:35IAH-LCY
37h 14m2 stops
£838British Airways
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Sun, 8 Mar - Sun, 15 Mar
British Airways Logo
19:15 - 22:49LCY-IAH
33h 34m2 stops
British Airways Logo
16:29 - 16:30IAH-LCY
42h 01m2 stops
£847British Airways
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Mon, 26 Jan - Sun, 26 Apr

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
5 Feb
LHR12:20London Heathrow
29h 20m
2 stops
IAH11:40Houston George Bush Intcntl
11 Feb
IAH12:30Houston George Bush Intcntl
12h 25m
1 stop
LHR06:55London Heathrow
£582
Find similar
Icelandair
22 Nov
LHR09:20London Heathrow
30h 17m
1 stop
IAH09:37Houston George Bush Intcntl
26 Nov
IAH20:10Houston George Bush Intcntl
28h 45m
1 stop
LHR06:55London Heathrow
£584
Find similar
Icelandair
23 Jan
LHR12:20London Heathrow
53h 20m
2 stops
IAH11:40Houston George Bush Intcntl
2 Feb
IAH12:30Houston George Bush Intcntl
12h 25m
1 stop
LHR06:55London Heathrow
£590
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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
6 Dec
LHR09:20London Heathrow
33h 21m
1 stop
IAH12:41Houston George Bush Intcntl
12 Sept
IAH14:35Houston George Bush Intcntl
33h 55m
1 stop
LHR06:30London Heathrow
£590
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JetBlue
2 Dec
LHR09:20London Heathrow
14h 28m
1 stop
IAH17:48Houston George Bush Intcntl
9 Dec
IAH13:36Houston George Bush Intcntl
11h 19m
1 stop
LHR06:55London Heathrow
£591
Find similar
JetBlue
21 Nov
LHR09:20London Heathrow
30h 11m
1 stop
IAH09:31Houston George Bush Intcntl
26 Nov
IAH20:10Houston George Bush Intcntl
28h 45m
1 stop
LHR06:55London Heathrow
£597
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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 5 November 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

LHR - IAH

LHRIAH

London Heathrow

Sun 23/11

14:50-12:44

1 stop27h 54m

Houston George Bush Intcntl

Wed 26/11

13:35-12:50

1 stop17h 15m

£575

LondonHouston

LGW - IAH

LGWIAH

London Gatwick

Sun 23/11

11:55-07:24

3 stops25h 29m

Houston George Bush Intcntl

Wed 3/12

20:35-10:55

3 stops32h 20m

£578

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Mon 17/11

12:15-23:59

2 stops17h 44m

Houston George Bush Intcntl

Mon 1/12

08:29-19:30

2 stops29h 01m

£578

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Thu 5/2

12:20-11:40

2 stops29h 20m

Houston George Bush Intcntl

Wed 11/2

12:30-06:55

1 stop12h 25m

£582

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Sat 22/11

09:20-09:37

1 stop30h 17m

Houston George Bush Intcntl

Wed 26/11

20:10-06:55

1 stop28h 45m

£584

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Thu 20/11

16:20-20:19

1 stop33h 59m

Houston George Bush Intcntl

Sat 22/11

18:36-07:55

1 stop31h 19m

£619

LondonHouston

LCY - IAH

LCYIAH

London City

Wed 11/3

09:50-19:15

1 stop14h 25m

Houston George Bush Intcntl

Thu 19/3

19:55-17:40

1 stop16h 45m

£801

LondonHouston

LCY - IAH

LCYIAH

London City

Wed 19/11

09:50-18:15

1 stop14h 25m

Houston George Bush Intcntl

Thu 27/11

18:55-16:40

1 stop15h 45m

£813

LondonHouston

LCY - IAH

LCYIAH

London City

Sun 8/3

19:15-00:19

2 stops34h 04m

Houston George Bush Intcntl

Sun 15/3

20:21-14:35

2 stops37h 14m

£838

LondonHouston

LCY - IAH

LCYIAH

London City

Mon 26/1

19:15-22:49

2 stops33h 34m

Houston George Bush Intcntl

Sun 26/4

16:29-16:30

2 stops42h 01m

£847

Flights are sorted by cheapest return 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?

In general, January 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 £629. If you aren’t able to travel to Houston George Bush Intcntl Airport during the month of January, then flying in March is also cheap. Prices for this month can be found on momondo for an average of £639.

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 £707. The most expensive day to fly to Houston George Bush Intcntl Airport is Saturday, with ticket prices averaging around £775.

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 £643. Try not to purchase tickets in the morning because they tend to be around £742. 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 £764 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 £665 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 35% 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 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

£469

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 £469. The best return flight deal from London to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is £669.
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 14h 25m.

  • 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 £393Free CancellationRating
7.2
3,153 reviews
Search WestJet flights
JetBluePriceFrom £480Free CancellationRating
7.2
2,907 reviews
Search JetBlue flights
IcelandairPriceFrom £501Free CancellationRating
7.1
571 reviews
Search Icelandair flights
LufthansaPriceFrom £511Free CancellationRating
6.8
7,554 reviews
Search Lufthansa flights
FinnairPriceFrom £520Free CancellationRating
7.6
1,335 reviews
Search Finnair flights
Virgin AtlanticPriceFrom £548Free CancellationRating
7.5
671 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom £551Free CancellationRating
6.7
7,496 reviews
Search British Airways flights
Air CanadaPriceFrom £567Free CancellationRating
7.1
10,404 reviews
Search Air Canada flights
Austrian AirlinesPriceFrom £613Free CancellationRating
7.6
864 reviews
Search Austrian Airlines flights
United AirlinesPriceFrom £618Free CancellationRating
7.4
9,000 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 £520 round-trip. Over the 11 Finnair flights for this route in a normal week, average airfare is usually £662 round-trip - but some users have found much cheaper deals with momondo.

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

    £613 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 £833, however, with flight time and availability significantly affecting the price. Austrian Airlines (7.6/10 from 864 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
Montgomery
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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