Which airlines fly to London?

British Airways, United Airlines and Iberia are the top three most popular airlines that fly to London from Houston according to our data. British Airways is the first choice among our users, with 51% of people opting to fly with this airline when travelling to London. Keep in mind that there are 5 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

How many flights depart from Houston to London on average per day?

As of September 2025, there are 21 flights per day flying from Houston to London. The most common time of day flights depart is 16:00, with 50% of flights taking off in the afternoon.

What is the cheapest airline that flies from Houston to London?

WestJet is the most popular carrier operating from Houston to London

How many flights depart from Houston to London on average per week?

149 flights are operational weekly from Houston to London as of September 2025. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.

When did momondo last update prices for flights from Houston to London?

Prices for flights from Houston to London refresh daily.

How many operators does momondo search for flights from Houston to London?

The number of operators available for flights from Houston to London is 5 as of September 2025.

How old do you have to be to fly from Houston to London?

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 Houston to London.

What documentation or ID do you need to fly to London?

The travel and health documents you'll need for your trip to London 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 London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£210 Cheap Flights from Houston to London in 2025/26

Q: What is the typical price of a round-trip flight between Houston and London?

Prices are currently low for flights on this route. Typical prices usually range from £428 to £535. The lowest price recently found on this route was £377.

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Find the cheapest flights from Houston to London

Round-trip

One-way

Last minute

Direct

Cheap return flights

05:00 - 11:15IAH-LHR

24h 15m1 stop

13:25 - 08:46LHR-IAH

49h 21m2 stops

£377United Airlines

Find Deal

Wed, 18 Feb - Tue, 24 Feb

17:48 - 10:00IAH-LGW

34h 12m1 stop

14:00 - 11:51LGW-IAH

27h 51m1 stop

£377

Find Deal

Wed, 1 Oct - Wed, 8 Oct

06:00 - 06:25IAH-LHR

18h 25m1 stop

06:20 - 14:55LHR-IAH

13h 35m1 stop

£378Delta

Find Deal

Wed, 4 Mar - Tue, 10 Mar

10:13 - 09:00HOU-LHR

17h 47m1 stop

08:55 - 23:00LHR-HOU

20h 05m2 stops

£380Delta

Find Deal

Wed, 29 Oct - Wed, 5 Nov

21:40 - 13:00IAH-LHR

9h 20mdirect

09:35 - 15:05LHR-IAH

10h 30mdirect

£386British Airways

Find Deal

Sun, 19 Oct - Thu, 30 Oct

14:33 - 09:00HOU-LHR

12h 27m1 stop

08:20 - 16:09LHR-HOU

13h 49m1 stop

£393British Airways

Find Deal

Wed, 1 Oct - Tue, 14 Oct

17:00 - 19:35IAH-LHR

20h 35m2 stops

20:15 - 14:10LHR-IAH

23h 55m2 stops

£413Lufthansa

Find Deal

Wed, 11 Feb - Mon, 23 Feb

14:26 - 08:35HOU-LHR

13h 09m1 stop

10:05 - 19:50LHR-HOU

15h 45m1 stop

£434Iberia

Find Deal

Thu, 30 Oct - Thu, 6 Nov

15:35 - 18:35IAH-LCY

21h 00m1 stop

19:10 - 13:35LCY-IAH

24h 25m1 stop

£441Lufthansa

Find Deal

Mon, 29 Sep - Wed, 8 Oct

14:26 - 20:00HOU-LGW

23h 34m2 stops

20:40 - 22:14LGW-HOU

31h 34m2 stops

£977Iberia

Find Deal

Sun, 12 Oct - Mon, 20 Oct

British Airways flights from Houston to London

Our best British Airways deals on Houston to London flight tickets

British Airways

28 Sept

IAH15:30Houston George Bush Intcntl

9h 10m

LHR06:40London Heathrow

7 Oct

LHR09:25London Heathrow

10h 20m

IAH13:45Houston George Bush Intcntl

£382

Find similar

British Airways

19 Oct

IAH21:40Houston George Bush Intcntl

9h 20m

LHR13:00London Heathrow

30 Oct

LHR09:35London Heathrow

10h 30m

IAH15:05Houston George Bush Intcntl

£386

Find similar

British Airways

1 Oct

HOU14:33Houston Hobby

12h 27m

1 stop

LHR09:00London Heathrow

14 Oct

LHR08:20London Heathrow

13h 49m

1 stop

HOU16:09Houston Hobby

£393

Find similar

United Airlines flights from Houston to London

Our best United Airlines deals on Houston to London flight tickets

United Airlines

18 Feb

IAH05:00Houston George Bush Intcntl

24h 15m

1 stop

LHR11:15London Heathrow

24 Feb

LHR13:25London Heathrow

49h 21m

2 stops

IAH08:46Houston George Bush Intcntl

£377

Find similar

United Airlines

29 Sept

IAH13:29Houston George Bush Intcntl

14h 41m

1 stop

LHR10:10London Heathrow

10 Oct

LHR10:00London Heathrow

10h 15m

IAH14:15Houston George Bush Intcntl

£378

Find similar

United Airlines

15 Oct

IAH20:15Houston George Bush Intcntl

9h 20m

LHR11:35London Heathrow

30 Oct

LHR06:35London Heathrow

15h 35m

1 stop

IAH17:10Houston George Bush Intcntl

£379

Find similar

Fly from

Fly to

Route

Depart

Return

Price

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 18/2

05:00-11:15

1 stop24h 15m

London Heathrow

Tue 24/2

13:25-08:46

2 stops49h 21m

£377

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

Wed 1/10

17:48-10:00

1 stop34h 12m

London Gatwick

Wed 8/10

14:00-11:51

1 stop27h 51m

£377

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 4/3

06:00-06:25

1 stop18h 25m

London Heathrow

Tue 10/3

06:20-14:55

1 stop13h 35m

£378

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 29/10

10:13-09:00

1 stop17h 47m

London Heathrow

Wed 5/11

08:55-23:00

2 stops20h 05m

£380

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 19/10

21:40-13:00

Nonstop9h 20m

London Heathrow

Thu 30/10

09:35-15:05

Nonstop10h 30m

£386

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 1/10

14:33-09:00

1 stop12h 27m

London Heathrow

Tue 14/10

08:20-16:09

1 stop13h 49m

£393

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 11/2

17:00-19:35

2 stops20h 35m

London Heathrow

Mon 23/2

20:15-14:10

2 stops23h 55m

£413

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Thu 30/10

14:26-08:35

1 stop13h 09m

London Heathrow

Thu 6/11

10:05-19:50

1 stop15h 45m

£434

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

Mon 29/9

15:35-18:35

1 stop21h 00m

London City

Wed 8/10

19:10-13:35

1 stop24h 25m

£441

HoustonLondon

HOU - LGW

HOULGW

Houston Hobby

Sun 12/10

14:26-20:00

2 stops23h 34m

London Gatwick

Mon 20/10

20:40-22:14

2 stops31h 34m

£977

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Houston to London

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

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Houston and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Houston is in September. Flight prices, which tend to average around £474, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from Houston averaging around £475.

What is the cheapest day to depart on your flight to London?

Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £528. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Houston to London for around £780.

What is the cheapest time of day to depart on your flight to London?

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £578. Flights at midday are often more expensive, with an average ticket price of £700.

What is the cheapest Houston to London flight route?

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

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from Houston when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £603 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Houston for as low as £539 on momondo.

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

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

Cheap Houston to London flight deals and tips

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

Fastest flight time	9h 00m
Direct flights	Every day
Airports in London	1 airport

The fastest flight from Houston to London takes 9h 00m

Direct flights go from Houston to London every day.

There is 1 airport near London: London Heathrow (LHR)

Search flight deals

How far is Houston to London by plane?
The straight-line distance from Houston to London is 4845.7 mi. 9h 10m is a normal flight duration for this route.
When did momondo last update prices for flights from Houston to London?
Prices for flights from Houston to London refresh daily.
How many operators does momondo search for flights from Houston to London?
The number of operators available for flights from Houston to London is 5 as of September 2025.
How old do you have to be to fly from Houston to London?
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 Houston to London.
What documentation or ID do you need to fly to London?
The travel and health documents you'll need for your trip to London 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 London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Houston to London

Compare and see reviews for airlines that fly from Houston to London with momondo

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom £298	Free Cancellation	Rating 7.4 664 reviews	Search Virgin Atlantic flights
United Airlines	PriceFrom £384	Free Cancellation	Rating 7.4 8,929 reviews	Search United Airlines flights
British Airways	PriceFrom £416	Free Cancellation	Rating 6.6 7,361 reviews	Search British Airways flights
Iberia	PriceFrom £422	Free Cancellation	Rating 7.0 2,924 reviews	Search Iberia flights
Lufthansa	PriceFrom £430	Free Cancellation	Rating 6.8 7,407 reviews	Search Lufthansa flights

Eastbourne

Luton

Milton Keynes

Maidstone

Gatwick

Slough

Canterbury

Southend-on-Sea

Ipswich

Ilford

Guildford

Colchester

Worthing

Chelmsford

Dover

Hayes

Dartford

Winchester

Hounslow

Stansted

Why use momondo?

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

Finding the right flight to London from Houston 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 London quick and easy, saving you time and money.

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

Flights from Houston to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

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 London from Houston.

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

If you are not ready to book a flight from Houston to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.