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 in the evening have, in the past, seen delays more frequently in comparison.

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

According to our data, British Airways have had the least number of 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 November 2025, there are 17 flights per day flying from Houston to London. The most common time of day flights depart is 4:00PM, with 57% of flights taking off in the afternoon.

What 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 38% of people opting to fly with this airline when traveling to London. Keep in mind that there are 11 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

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 145 minutes.

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

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

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

As of November 2025, 121 flights take off from Houston and land in London each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.

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

Air Canada, WestJet, and Scandinavian 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 are refreshed on a daily basis.

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

As of November 2025, there are 11 operators available to choose from for flights from Houston to London.

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 required for your trip to London 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 London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$380 Cheap Flights from Houston to London in 2025/26

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4:05 pm - 10:30 amIAH-LHR

12h 25m1 stop

6:30 am - 1:30 pmLHR-IAH

13h 00m1 stop

$622Multiple Airlines

Find Deal

Wed, Jan 14 - Tue, Jan 27

7:00 am - 7:00 amIAH-LHR

18h 00m2 stops

6:20 am - 5:40 pmLHR-IAH

17h 20m2 stops

$623Delta

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Wed, Dec 24 - Tue, Jan 27

6:30 am - 6:00 amIAH-LGW

17h 30m1 stop

2:00 pm - 10:41 pmLGW-IAH

14h 41m1 stop

$623Multiple Airlines

Find Deal

Fri, Jan 16 - Sat, Jan 17

3:50 pm - 6:50 amIAH-LHR

9h 00mnonstop

9:35 am - 2:05 pmLHR-IAH

10h 30mnonstop

$624Iberia

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Wed, Feb 11 - Mon, Feb 23

8:00 am - 7:30 amIAH-LGW

17h 30m2 stops

11:20 am - 9:50 amLGW-IAH

28h 30m2 stops

$624American Airlines

Find Deal

Mon, Jan 26 - Tue, Feb 3

7:05 pm - 10:15 amIAH-LHR

9h 10mnonstop

9:30 am - 6:15 pmLHR-IAH

14h 45m1 stop

$626United Airlines

Find Deal

Mon, Jan 26 - Tue, Feb 3

11:11 am - 7:20 amIAH-LHR

14h 09m1 stop

3:25 pm - 8:00 pmLHR-IAH

10h 35mnonstop

$628Iberia

Find Deal

Wed, Feb 11 - Sun, Feb 22

12:18 pm - 12:15 pmHOU-LHR

18h 57m1 stop

6:10 pm - 7:50 pmLHR-HOU

30h 40m2 stops

$630British Airways

Find Deal

Mon, Mar 9 - Mon, Mar 23

6:36 pm - 12:15 pmHOU-LHR

11h 39m1 stop

10:35 am - 6:06 pmLHR-HOU

13h 31m1 stop

$638British Airways

Find Deal

Fri, Jan 30 - Fri, Feb 6

9:04 am - 9:00 amHOU-LGW

17h 56m2 stops

11:20 am - 10:05 amLGW-HOU

28h 45m2 stops

$755American Airlines

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Thu, Jan 8 - Thu, Jan 15

Delta flights from Houston to London

Our best Delta deals on Houston to London flight tickets

Delta

Dec 24

IAH7:00 amHouston George Bush Intcntl

18h 00m

2 stops

LHR7:00 amLondon Heathrow

Jan 27

LHR6:20 amLondon Heathrow

17h 20m

2 stops

IAH5:40 pmHouston George Bush Intcntl

$623

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Delta

Dec 10

HOU2:32 pmHouston Hobby

12h 28m

1 stop

LHR9:00 amLondon Heathrow

Jan 14

LHR6:30 amLondon Heathrow

22h 03m

2 stops

HOU10:33 pmHouston Hobby

$624

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Delta

Dec 24

IAH7:00 amHouston George Bush Intcntl

18h 00m

2 stops

LHR7:00 amLondon Heathrow

Jan 29

LHR1:05 pmLondon Heathrow

16h 51m

2 stops

IAH11:56 pmHouston George Bush Intcntl

$629

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Iberia flights from Houston to London

Our best Iberia deals on Houston to London flight tickets

Iberia

Feb 11

IAH3:50 pmHouston George Bush Intcntl

9h 00m

LHR6:50 amLondon Heathrow

Feb 23

LHR9:35 amLondon Heathrow

10h 30m

IAH2:05 pmHouston George Bush Intcntl

$624

Find similar

Iberia

Feb 11

IAH11:11 amHouston George Bush Intcntl

14h 09m

1 stop

LHR7:20 amLondon Heathrow

Feb 22

LHR3:25 pmLondon Heathrow

10h 35m

IAH8:00 pmHouston George Bush Intcntl

$628

Find similar

Iberia

Dec 4

IAH12:11 pmHouston George Bush Intcntl

12h 39m

1 stop

LHR6:50 amLondon Heathrow

Dec 10

LHR12:35 pmLondon Heathrow

13h 21m

1 stop

IAH7:56 pmHouston George Bush Intcntl

$632

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Route

Depart

Return

Price

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 1/14

4:05 pm-10:30 am

1 stop12h 25m

London Heathrow

Tue 1/27

6:30 am-1:30 pm

1 stop13h 00m

$622

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 12/24

7:00 am-7:00 am

2 stops18h 00m

London Heathrow

Tue 1/27

6:20 am-5:40 pm

2 stops17h 20m

$623

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

Fri 1/16

6:30 am-6:00 am

1 stop17h 30m

London Gatwick

Sat 1/17

2:00 pm-10:41 pm

1 stop14h 41m

$623

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 2/11

3:50 pm-6:50 am

Nonstop9h 00m

London Heathrow

Mon 2/23

9:35 am-2:05 pm

Nonstop10h 30m

$624

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

Mon 1/26

8:00 am-7:30 am

2 stops17h 30m

London Gatwick

Tue 2/3

11:20 am-9:50 am

2 stops28h 30m

$624

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 1/26

7:05 pm-10:15 am

Nonstop9h 10m

London Heathrow

Tue 2/3

9:30 am-6:15 pm

1 stop14h 45m

$626

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 2/11

11:11 am-7:20 am

1 stop14h 09m

London Heathrow

Sun 2/22

3:25 pm-8:00 pm

Nonstop10h 35m

$628

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 3/9

12:18 pm-12:15 pm

1 stop18h 57m

London Heathrow

Mon 3/23

6:10 pm-7:50 pm

2 stops30h 40m

$630

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Fri 1/30

6:36 pm-12:15 pm

1 stop11h 39m

London Heathrow

Fri 2/6

10:35 am-6:06 pm

1 stop13h 31m

$638

HoustonLondon

HOU - LGW

HOULGW

Houston Hobby

Thu 1/8

9:04 am-9:00 am

2 stops17h 56m

London Gatwick

Thu 1/15

11:20 am-10:05 am

2 stops28h 45m

$755

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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 $642, 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 $643.

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

The cheapest day to depart from Houston to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $786. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $988. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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

Flying to London from Houston in the morning is the least expensive time of day to depart. momondo users have found prices as low as $844 when looking at flights departing in the morning. Flights to London are more costly in the evening, with an average ticket price of $996. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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 $835 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Houston for as low as $780 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?
A flight from Houston to London will travel around 4845.7 mi. By plane, this route typically takes 9h 00m.
When did momondo last update prices for flights from Houston to London?
Prices for flights from Houston to London are refreshed on a daily basis.
How many operators does momondo search for flights from Houston to London?
As of November 2025, there are 11 operators available to choose from for flights from Houston to London.
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 required for your trip to London 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 London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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
JetBlue	PriceFrom $101	Free Cancellation	Rating 7.2 2,905 reviews	Search JetBlue flights
Virgin Atlantic	PriceFrom $476	Free Cancellation	Rating 7.5 675 reviews	Search Virgin Atlantic flights
Air Canada	PriceFrom $521	Free Cancellation	Rating 7.1 10,476 reviews	Search Air Canada flights
American Airlines	PriceFrom $522	Free Cancellation	Rating 7.2 11,038 reviews	Search American Airlines flights
Finnair	PriceFrom $553	Free Cancellation	Rating 7.6 1,334 reviews	Search Finnair flights
British Airways	PriceFrom $562	Free Cancellation	Rating 6.7 7,539 reviews	Search British Airways flights
United Airlines	PriceFrom $562	Free Cancellation	Rating 7.4 9,046 reviews	Search United Airlines flights
Iberia	PriceFrom $579	Free Cancellation	Rating 7.0 3,034 reviews	Search Iberia flights
Delta	PriceFrom $607	Free Cancellation	Rating 7.9 7,998 reviews	Search Delta flights
Lufthansa	PriceFrom $722	Free Cancellation	Rating 6.8 7,594 reviews	Search Lufthansa flights

Gatwick

Hounslow

Milton Keynes

Dover

Luton

Slough

Guildford

Hayes

Dartford

Crawley

Brentwood

Chelmsford

Wembley

Romford

Watford

Ilford

Cobham

Folkestone

Uxbridge

Stansted

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Houston to London for you.

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

momondo does allow users to show only those flights to London from Houston which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Houston to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Houston to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Flights to Cardifffrom $415

Cheap flights from Houston to London from $380

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 4/12. 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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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

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?

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

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?

Air Canada, WestJet, and Scandinavian Airlines are the most popular carriers operating from Houston to London

What 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 145 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 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 which experiences the fewest number of delays on this flight route. Friday 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 least number of 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 November 2025, there are 17 flights per day flying from Houston to London. The most common time of day flights depart is 4:00PM, with 57% of flights taking off in the afternoon.

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

As of November 2025, 121 flights take off from Houston and land in London each week. The most common flight departure day for this route is Mon, with 16% of weekly flights 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

Traveling 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, organize 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