How often are flights from Houston to London delayed?

Historically, on average around 27% of flights between Houston and London have experienced a delay on any given week. The average delay length over the past 12 months has been 144 minutes.

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

As of December 2025, there are 18 flights per day flying from Houston to London. The most common time of day flights depart is 16:00, with 58% of flights taking off in the afternoon.

Which airline has the best punctuality record on Houston to London flights?

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 19% of their flights experiencing any sort of delay.

Which airlines fly to London?

British Airways, United Airlines and Lufthansa 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 48% 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 week?

126 flights are operational weekly from Houston to London as of December 2025. The most popular departure day for this route is Thu, with 17% of flights per week taking off on this day.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

What is the most punctual flight time for Houston to London flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

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

Brussels Airlines, Lufthansa, and Austrian Airlines are the most popular carriers operating from Houston to London

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 December 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.

£273 Cheap Flights from Houston to London in 2025/26

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16:15 - 06:00

IAH

LGW

31h 45m2 stops

14:00 - 09:00

LGW

IAH

25h 00m1 stop

£445Multiple Airlines

sam., 24 janv. - ven., 30 janv.

11:50 - 21:00

IAH

LHR

27h 10m2 stops

08:45 - 19:59

LHR

IAH

17h 14m2 stops

£447Air Canada

lun., 27 avr. - ven., 8 mai

10:24 - 08:25

IAH

LHR

16h 01m1 stop

08:00 - 18:46

LHR

IAH

16h 46m1 stop

£449Austrian Airlines

mer., 14 janv. - mer., 21 janv.

20:17 - 11:15

IAH

LHR

32h 58m2 stops

09:00 - 14:40

LHR

IAH

35h 40m2 stops

£450Multiple Airlines

sam., 14 févr. - mar., 17 févr.

17:00 - 11:15

IAH

LHR

12h 15m1 stop

08:30 - 18:15

LHR

IAH

15h 45m1 stop

£450Lufthansa

mer., 7 janv. - mer., 14 janv.

11:55 - 07:55

IAH

LHR

14h 00m1 stop

08:30 - 22:58

LHR

IAH

20h 28m2 stops

£452Lufthansa

mar., 30 déc. - ven., 23 janv.

20:16 - 08:35

HOU

LHR

30h 19m1 stop

07:30 - 22:46

LHR

HOU

21h 16m2 stops

£472British Airways

mar., 30 déc. - ven., 23 janv.

12:17 - 08:35

HOU

LHR

14h 18m1 stop

06:00 - 19:50

LHR

HOU

18h 50m2 stops

£473British Airways

mer., 4 mars - mar., 10 mars

12:47 - 10:00

HOU

LHR

15h 13m1 stop

07:35 - 19:55

LHR

HOU

18h 20m2 stops

£474Iberia

mer., 11 févr. - mer., 18 févr.

10:35 - 10:50

HOU

LGW

18h 15m2 stops

19:40 - 10:05

LGW

HOU

20h 25m2 stops

£541Iberia

jeu., 22 janv. - lun., 26 janv.

Delta flights from Houston to London

Our best Delta deals on Houston to London flight tickets

Delta

30 Dec

IAH06:27Houston George Bush Intcntl

18h 38m

1 stop

LHR07:05London Heathrow

14 Jan

LHR10:00London Heathrow

33h 30m

1 stop

IAH13:30Houston George Bush Intcntl

£461

Find similar

Delta

12 Jan

IAH12:47Houston George Bush Intcntl

12h 18m

1 stop

LHR07:05London Heathrow

22 Jan

LHR06:30London Heathrow

13h 00m

1 stop

IAH13:30Houston George Bush Intcntl

£464

Find similar

Delta

29 Dec

IAH15:30Houston George Bush Intcntl

11h 30m

1 stop

LHR09:00London Heathrow

14 Jan

LHR08:40London Heathrow

34h 50m

1 stop

IAH13:30Houston George Bush Intcntl

£465

Find similar

Brussels Airlines flights from Houston to London

Our best Brussels Airlines deals on Houston to London flight tickets

Brussels Airlines

30 Dec

IAH11:55Houston George Bush Intcntl

14h 00m

1 stop

LHR07:55London Heathrow

23 Jan

LHR10:25London Heathrow

14h 36m

1 stop

IAH19:01Houston George Bush Intcntl

£453

Find similar

Brussels Airlines

13 Jan

IAH12:29Houston George Bush Intcntl

11h 51m

1 stop

LHR06:20London Heathrow

20 Jan

LHR10:25London Heathrow

14h 36m

1 stop

IAH19:01Houston George Bush Intcntl

£460

Find similar

Brussels Airlines

31 Dec

IAH12:27Houston George Bush Intcntl

11h 53m

1 stop

LHR06:20London Heathrow

13 Jan

LHR09:10London Heathrow

15h 36m

1 stop

IAH18:46Houston George Bush Intcntl

£466

Find similar

Fly from

Fly to

Route

Depart

Return

Price

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

sam. 24/1

16:15-06:00

2 stops31h 45m

London Gatwick

ven. 30/1

14:00-09:00

1 stop25h 00m

£445

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

lun. 27/4

11:50-21:00

2 stops27h 10m

London Heathrow

ven. 8/5

08:45-19:59

2 stops17h 14m

£447

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

mer. 14/1

10:24-08:25

1 stop16h 01m

London Heathrow

mer. 21/1

08:00-18:46

1 stop16h 46m

£449

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

sam. 14/2

20:17-11:15

2 stops32h 58m

London Heathrow

mar. 17/2

09:00-14:40

2 stops35h 40m

£450

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

mer. 7/1

17:00-11:15

1 stop12h 15m

London Heathrow

mer. 14/1

08:30-18:15

1 stop15h 45m

£450

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

mar. 30/12

11:55-07:55

1 stop14h 00m

London Heathrow

ven. 23/1

08:30-22:58

2 stops20h 28m

£452

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

mar. 30/12

20:16-08:35

1 stop30h 19m

London Heathrow

ven. 23/1

07:30-22:46

2 stops21h 16m

£472

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

mer. 4/3

12:17-08:35

1 stop14h 18m

London Heathrow

mar. 10/3

06:00-19:50

2 stops18h 50m

£473

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

mer. 11/2

12:47-10:00

1 stop15h 13m

London Heathrow

mer. 18/2

07:35-19:55

2 stops18h 20m

£474

HoustonLondon

HOU - LGW

HOULGW

Houston Hobby

jeu. 22/1

10:35-10:50

2 stops18h 15m

London Gatwick

lun. 26/1

19:40-10:05

2 stops20h 25m

£541

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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

Delays

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 £479, 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 £480.

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 £535. 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 £792.

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 £570. Flights at midday are often more expensive, with an average ticket price of £710.

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 £625 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 £582 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	6 airports

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

Direct flights go from Houston to London every day.

There are 6 airports in London. From Houston there are direct flights to 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 00m 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 December 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 £302	Free Cancellation	Rating 7.5 675 reviews	Search Virgin Atlantic flights
Lufthansa	PriceFrom £350	Free Cancellation	Rating 6.8 7,626 reviews	Search Lufthansa flights
British Airways	PriceFrom £417	Free Cancellation	Rating 6.7 7,571 reviews	Search British Airways flights
Iberia	PriceFrom £428	Free Cancellation	Rating 7.0 3,045 reviews	Search Iberia flights
United Airlines	PriceFrom £430	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights

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Bedford

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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.

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Cheap flights from Houston to London from £273

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to London departing on 8/4. 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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Delta flights from Houston to London

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See travel insights to London from

How to get the cheapest flight ticket from Houston to London

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

What is the cheapest month to fly to London?

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 £535. 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 £792.

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 £570. Flights at midday are often more expensive, with an average ticket price of £710.

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?

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.

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

Brussels Airlines, Lufthansa, and Austrian Airlines are the most popular carriers operating from Houston to London

Which airlines fly to London?

How often are flights from Houston to London delayed?

Historically, on average around 27% of flights between Houston and London have experienced a delay on any given week. The average delay length over the past 12 months has been 144 minutes.

What is the most punctual flight time for Houston to London flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Houston to London flights?

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 19% of their flights experiencing any sort of delay.

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

As of December 2025, there are 18 flights per day flying from Houston to London. The most common time of day flights depart is 16:00, with 58% of flights taking off in the afternoon.

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

126 flights are operational weekly from Houston to London as of December 2025. The most popular departure day for this route is Thu, with 17% of flights per week taking off on this day.

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

Direct flights

Airports in London

How far is Houston to London by plane?

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

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

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

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

Best airlines flying from Houston to London

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

Travelling to a place near London?

Why use momondo?

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

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

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

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

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London