Which airlines fly to London?

British Airways, Iberia and United Airlines 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 49% of people opting to fly with this airline when travelling to London. Keep in mind that there are 4 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 week?

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

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

As of August 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.

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 4 as of August 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.

£139 Cheap Flights from Houston to London in 2025

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 £471 to £648. The lowest price recently found on this route was £351.

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Find the cheapest flights from Houston to London

Round-trip

One-way

Last minute

Direct

Cheap return flights

15:58 - 13:30IAH-LHR

15h 32m1 stop

06:30 - 13:15LHR-IAH

12h 45m1 stop

£351Virgin Atlantic

Find Deal

dom., 17 ago. - mar., 2 sep.

18:59 - 06:55IAH-LGW

29h 56m1 stop

10:00 - 21:50LGW-IAH

17h 50m1 stop

£358

Find Deal

sáb., 16 ago. - sáb., 30 ago.

13:42 - 11:25IAH-LHR

15h 43m1 stop

10:00 - 14:15LHR-IAH

10h 15mdirect

£374United Airlines

Find Deal

lun., 18 ago. - mar., 2 sep.

16:45 - 10:40IAH-LHR

11h 55m1 stop

11:25 - 21:18LHR-IAH

15h 53m1 stop

£375United Airlines

Find Deal

lun., 18 ago. - mar., 2 sep.

15:30 - 06:40IAH-LHR

9h 10mdirect

09:25 - 13:45LHR-IAH

10h 20mdirect

£378British Airways

Find Deal

lun., 22 sep. - mié., 1 oct.

15:30 - 06:40IAH-LHR

9h 10mdirect

14:50 - 19:15LHR-IAH

10h 25mdirect

£379British Airways

Find Deal

lun., 22 sep. - mar., 30 sep.

09:15 - 14:05IAH-LCY

22h 50m2 stops

07:50 - 21:51LCY-IAH

20h 01m2 stops

£418Iberia

Find Deal

mar., 6 ene. - vie., 16 ene.

12:22 - 14:05HOU-LCY

19h 43m2 stops

07:50 - 20:05LCY-HOU

18h 15m2 stops

£418Iberia

Find Deal

mar., 6 ene. - vie., 16 ene.

15:35 - 18:35IAH-LCY

21h 00m1 stop

08:45 - 13:35LCY-IAH

34h 50m1 stop

£467Lufthansa

Find Deal

lun., 1 sep. - jue., 11 sep.

15:35 - 16:25IAH-LCY

18h 50m1 stop

19:10 - 13:35LCY-IAH

24h 25m1 stop

£468Lufthansa

Find Deal

dom., 17 ago. - lun., 25 ago.

Iberia flights from Houston to London

Our best Iberia deals on Houston to London flight tickets

Iberia

9 Aug

IAH16:36Houston George Bush Intcntl

31h 49m

1 stop

LHR06:25London Heathrow

19 Aug

LHR14:25London Heathrow

14h 54m

1 stop

IAH23:19Houston George Bush Intcntl

£410

Find similar

Iberia

9 Aug

HOU18:30Houston Hobby

29h 55m

1 stop

LHR06:25London Heathrow

19 Aug

LHR08:20London Heathrow

17h 39m

1 stop

HOU19:59Houston Hobby

£411

Find similar

Iberia

6 Jan

IAH09:15Houston George Bush Intcntl

22h 50m

2 stops

LCY14:05London City

16 Jan

LCY07:50London City

20h 01m

2 stops

IAH21:51Houston George Bush Intcntl

£418

Find similar

Delta flights from Houston to London

Our best Delta deals on Houston to London flight tickets

Delta

10 Aug

IAH10:19Houston George Bush Intcntl

17h 41m

1 stop

LGW10:00London Gatwick

21 Aug

LGW12:00London Gatwick

27h 19m

1 stop

IAH09:19Houston George Bush Intcntl

£378

Find similar

Delta

18 Aug

IAH07:00Houston George Bush Intcntl

21h 00m

2 stops

LGW10:00London Gatwick

28 Aug

LGW12:00London Gatwick

56h 59m

2 stops

IAH14:59Houston George Bush Intcntl

£385

Find similar

Delta

18 Aug

IAH09:36Houston George Bush Intcntl

15h 09m

1 stop

LHR06:45London Heathrow

26 Aug

LHR06:15London Heathrow

13h 20m

1 stop

IAH13:35Houston George Bush Intcntl

£388

Find similar

Fly from

Fly to

Route

Depart

Return

Price

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

dom. 17/8

15:58-13:30

1 stop15h 32m

London Heathrow

mar. 2/9

06:30-13:15

1 stop12h 45m

£351

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

sáb. 16/8

18:59-06:55

1 stop29h 56m

London Gatwick

sáb. 30/8

10:00-21:50

1 stop17h 50m

£358

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

lun. 18/8

13:42-11:25

1 stop15h 43m

London Heathrow

mar. 2/9

10:00-14:15

Nonstop10h 15m

£374

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

lun. 18/8

16:45-10:40

1 stop11h 55m

London Heathrow

mar. 2/9

11:25-21:18

1 stop15h 53m

£375

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

lun. 22/9

15:30-06:40

Nonstop9h 10m

London Heathrow

mié. 1/10

09:25-13:45

Nonstop10h 20m

£378

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

lun. 22/9

15:30-06:40

Nonstop9h 10m

London Heathrow

mar. 30/9

14:50-19:15

Nonstop10h 25m

£379

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

mar. 6/1

09:15-14:05

2 stops22h 50m

London City

vie. 16/1

07:50-21:51

2 stops20h 01m

£418

HoustonLondon

HOU - LCY

HOULCY

Houston Hobby

mar. 6/1

12:22-14:05

2 stops19h 43m

London City

vie. 16/1

07:50-20:05

2 stops18h 15m

£418

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

lun. 1/9

15:35-18:35

1 stop21h 00m

London City

jue. 11/9

08:45-13:35

1 stop34h 50m

£467

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

dom. 17/8

15:35-16:25

1 stop18h 50m

London City

lun. 25/8

19:10-13:35

1 stop24h 25m

£468

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 October. Flight prices, which tend to average around £492, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Houston averaging around £504.

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 £542. 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 £802.

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 £622. Flights at midday are often more expensive, with an average ticket price of £719.

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 £620 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 £534 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

Best price found	£139
Fastest flight time	9h 10m
Direct flights	Every day
Airports in London	3 airports

The best one-way flight to London from Houston in the past 72 hours is £139. The best return flight deal from Houston to London found on momondo in the last 72 hours is £351.

The fastest flight from Houston to London takes 9h 10m

Direct flights go from Houston to London every day.

There are 3 airports near London: London City (LCY), London Heathrow (LHR), London Gatwick (LGW)

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 4 as of August 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
Iberia	PriceFrom £439	Free Cancellation	Rating 7.0 2,862 reviews	Search Iberia flights
Lufthansa	PriceFrom £442	Free Cancellation	Rating 6.8 7,276 reviews	Search Lufthansa flights
United Airlines	PriceFrom £451	Free Cancellation	Rating 7.4 8,904 reviews	Search United Airlines flights
British Airways	PriceFrom £473	Free Cancellation	Rating 6.6 7,224 reviews	Search British Airways flights

Eastbourne

Milton Keynes

Luton

Slough

Southend-on-Sea

Maidstone

Canterbury

Gatwick

Ipswich

Ilford

Dartford

Guildford

Colchester

Worthing

Hounslow

Dover

Winchester

Margate

Chelmsford

Bedford

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.