Which layover airport has the shortest connection time from Houston George Bush Intcntl Airport to London?

Dallas (DFW) has the shortest average layover time for this route: 2h 21m.

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

British Airways, Delta, and Finnair are the most popular carriers operating from Houston George Bush Intcntl to London

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. Sunday has historically seen more delays on average compared to the rest of the week.

Which airport is the most popular layover for flights between Houston George Bush Intcntl Airport and London?

Toronto (YYZ) was the most common stop: 63% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Houston George Bush Intcntl Airport to London?

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 12h 28m.

What airlines fly to London?

United Airlines, British Airways and Iberia are the top three most popular airlines that fly to London from Houston George Bush Intcntl Airport according to our data. United Airlines is the first choice among our users, with 39% 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 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 in the evening have, in the past, seen delays more frequently in comparison.

Which layover airport offers the lowest fares from Houston George Bush Intcntl Airport to London?

Flights via Washington, D.C. (IAD) offer the lowest average round-trip price of $756.

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 operators does momondo search for flights from Houston George Bush Intcntl Airport to London?

As of January 2026, there are 11 operators available to choose from for flights from Houston George Bush Intcntl Airport to London.

How old do you have to be to fly from Houston George Bush Intcntl Airport 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 George Bush Intcntl Airport 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.

$374 Cheap Flights from Houston George Bush Intcntl Airport to London in 2026

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3:50 pm - 6:50 am

IAH

LHR

9h 00mnonstop

9:35 am - 2:05 pm

LHR

IAH

10h 30mnonstop

$630British Airways

Fri, Feb 13 - Wed, Feb 18

8:44 am - 10:00 am

IAH

LGW

19h 16m1 stop

9:45 pm - 11:51 pm

LGW

IAH

32h 06m2 stops

$630Multiple Airlines

Thu, Apr 2 - Thu, Apr 16

5:25 pm - 11:50 am

IAH

LHR

36h 25m1 stop

9:00 am - 9:39 pm

LHR

IAH

18h 39m2 stops

$631Air Canada

Thu, Jan 29 - Tue, Feb 3

11:15 am - 10:00 am

IAH

LGW

17h 45m1 stop

2:00 pm - 10:18 am

LGW

IAH

26h 18m1 stop

$631Multiple Airlines

Fri, Mar 27 - Fri, Apr 10

9:55 pm - 5:40 pm

IAH

LCY

38h 45m2 stops

9:50 am - 7:15 pm

LCY

IAH

14h 25m1 stop

$632Lufthansa

Sat, Mar 14 - Tue, Mar 17

12:10 pm - 8:35 pm

IAH

LHR

26h 25m2 stops

9:00 am - 9:39 pm

LHR

IAH

18h 39m2 stops

$634Air Canada

Thu, Feb 5 - Thu, Feb 12

5:20 pm - 7:30 am

IAH

LHR

9h 10mnonstop

6:35 am - 5:30 pm

LHR

IAH

15h 55m1 stop

$636United Airlines

Tue, Mar 17 - Thu, Mar 19

6:55 pm - 5:40 pm

IAH

LCY

16h 45m1 stop

9:50 am - 7:15 pm

LCY

IAH

14h 25m1 stop

$641Lufthansa

Wed, Mar 4 - Tue, Mar 10

3:30 pm - 4:35 pm

IAH

LCY

19h 05m1 stop

5:50 pm - 1:30 pm

LCY

IAH

25h 40m1 stop

$646Virgin Atlantic

Sun, Feb 1 - Mon, Feb 16

4:30 pm - 8:50 am

IAH

LCY

11h 20m1 stop

6:55 pm - 2:30 pm

LCY

IAH

24h 35m1 stop

$647Virgin Atlantic

Wed, Mar 11 - Wed, Mar 18

British Airways flights from Houston George Bush Intcntl Airport to London

Our best British Airways deals on Houston George Bush Intcntl Airport to London flight tickets

British Airways

Feb 13

IAH3:50 pmHouston George Bush Intcntl

9h 00m

LHR6:50 amLondon Heathrow

Feb 18

LHR9:35 amLondon Heathrow

10h 30m

IAH2:05 pmHouston George Bush Intcntl

$630

British Airways

Jan 19

IAH9:45 pmHouston George Bush Intcntl

9h 00m

LHR12:45 pmLondon Heathrow

Jan 26

LHR3:25 pmLondon Heathrow

10h 35m

IAH8:00 pmHouston George Bush Intcntl

$631

British Airways

Jan 21

IAH4:50 pmHouston George Bush Intcntl

12h 50m

1 stop

LHR11:40 amLondon Heathrow

Jan 25

LHR1:10 pmLondon Heathrow

15h 14m

1 stop

IAH10:24 pmHouston George Bush Intcntl

$635

United Airlines flights from Houston George Bush Intcntl Airport to London

Our best United Airlines deals on Houston George Bush Intcntl Airport to London flight tickets

United Airlines

Jan 21

IAH9:36 amHouston George Bush Intcntl

18h 34m

1 stop

LHR10:10 amLondon Heathrow

Jan 27

LHR6:30 amLondon Heathrow

17h 45m

1 stop

IAH6:15 pmHouston George Bush Intcntl

$634

United Airlines

Mar 17

IAH5:20 pmHouston George Bush Intcntl

9h 10m

LHR7:30 amLondon Heathrow

Mar 19

LHR6:35 amLondon Heathrow

15h 55m

1 stop

IAH5:30 pmHouston George Bush Intcntl

$636

United Airlines

Apr 12

IAH8:05 pmHouston George Bush Intcntl

9h 30m

LHR11:35 amLondon Heathrow

Apr 21

LHR10:00 amLondon Heathrow

10h 25m

IAH2:25 pmHouston George Bush Intcntl

$640

momondo Fare Finder

Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to London that are best for you.

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Depart

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HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Fri 2/13

3:50 pm-6:50 am

Nonstop9h 00m

London Heathrow

Wed 2/18

9:35 am-2:05 pm

Nonstop10h 30m

$630

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

Thu 4/2

8:44 am-10:00 am

1 stop19h 16m

London Gatwick

Thu 4/16

9:45 pm-11:51 pm

2 stops32h 06m

$630

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Thu 1/29

5:25 pm-11:50 am

1 stop36h 25m

London Heathrow

Tue 2/3

9:00 am-9:39 pm

2 stops18h 39m

$631

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

Fri 3/27

11:15 am-10:00 am

1 stop17h 45m

London Gatwick

Fri 4/10

2:00 pm-10:18 am

1 stop26h 18m

$631

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

Sat 3/14

9:55 pm-5:40 pm

2 stops38h 45m

London City

Tue 3/17

9:50 am-7:15 pm

1 stop14h 25m

$632

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Thu 2/5

12:10 pm-8:35 pm

2 stops26h 25m

London Heathrow

Thu 2/12

9:00 am-9:39 pm

2 stops18h 39m

$634

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 3/17

5:20 pm-7:30 am

Nonstop9h 10m

London Heathrow

Thu 3/19

6:35 am-5:30 pm

1 stop15h 55m

$636

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

Wed 3/4

6:55 pm-5:40 pm

1 stop16h 45m

London City

Tue 3/10

9:50 am-7:15 pm

1 stop14h 25m

$641

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

Sun 2/1

3:30 pm-4:35 pm

1 stop19h 05m

London City

Mon 2/16

5:50 pm-1:30 pm

1 stop25h 40m

$646

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

Wed 3/11

4:30 pm-8:50 am

1 stop11h 20m

London City

Wed 3/18

6:55 pm-2:30 pm

1 stop24h 35m

$647

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Houston George Bush Intcntl Airport 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

Layovers

Other information

What is the cheapest month to fly to London?

The cheapest month to fly to London from Houston George Bush Intcntl Airport is in October. Flight prices, which tend to average around $662, are often lower during this time because this is during the off-season. The month of September is another great option to travel to London, with average flight prices from Houston George Bush Intcntl Airport averaging around $667.

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

Flying to London from Houston George Bush Intcntl Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $926 when looking at flights departing in the afternoon. Flights to London are more costly in the evening, with an average ticket price of $972. 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 George Bush Intcntl to London flight route?

Fly from Houston George Bush Intcntl to London Heathrow for the best Houston George Bush Intcntl - 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 George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $818 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Houston George Bush Intcntl Airport for as low as $750 on momondo.

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

There are 4 cabin classes available to choose from on Houston George Bush Intcntl to London 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 Houston George Bush Intcntl Airport to London flights?

You could potentially save up to 6% on your flight if you consider stops on a Houston George Bush Intcntl Airport to London flight.

How have Houston George Bush Intcntl Airport to London flight prices changed over time?

As of January 2026, prices for Houston George Bush Intcntl Airport to London flights are approximately 69% more expensive when compared to flights at the same time last year.

When to book flights from Houston George Bush Intcntl Airport to London

Are you open to changing your travel dates? Check out the ideal times to fly from Houston George Bush Intcntl Airport to London according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Houston George Bush Intcntl Airport to London (IAH to LON) flight deals and tips

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

Best Price Found	$376
Fastest flight time	9h 00m
Direct flights	Every day
Airports in London	6 airports

The best one-way flight to London from Houston George Bush Intcntl Airport in the past 72 hours is $376. The best round-trip flight deal from Houston George Bush Intcntl Airport to London found on momondo in the last 72 hours is $719.

The fastest flight from Houston George Bush Intcntl Airport to London takes 9h 00m

Direct flights go from Houston George Bush Intcntl Airport to London every day.

There are 6 airports in London. From Houston George Bush Intcntl Airport there are direct flights to London Heathrow (LHR).

Search flight deals

How far is Houston George Bush Intcntl to London by plane?
A flight from Houston George Bush Intcntl to London will travel around 4832.8 mi. 9h 00m is a normal flight duration for this route.
When did momondo last update prices for flights from Houston George Bush Intcntl Airport to London?
Prices for flights from Houston George Bush Intcntl Airport to London are refreshed on a daily basis.
How many operators does momondo search for flights from Houston George Bush Intcntl Airport to London?
As of January 2026, there are 11 operators available to choose from for flights from Houston George Bush Intcntl Airport to London.
How old do you have to be to fly from Houston George Bush Intcntl Airport 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 George Bush Intcntl Airport 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.
What is the most popular plane model from Houston George Bush Intcntl Airport to London?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Houston George Bush Intcntl Airport to London is Boeing 777 (56.77% of total bookings). The next most popular plane models are Boeing 787-10 Dreamliner (13.53%), Boeing 787-8 Dreamliner (9.57%), and Boeing 787-9 Dreamliner (8.06%).
What is the most popular airline from Houston George Bush Intcntl Airport to London?
Based on momondo bookings for flights between Houston George Bush Intcntl Airport and London, the leading airline is United Airlines, making up 37% of the total bookings. Other popular airlines include British Airways with 30%, Iberia with 19%, and American Airlines with 6%.

Best airlines flying from Houston George Bush Intcntl Airport to London

Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to London with momondo

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $101	Free Cancellation	Rating 7.2 2,892 reviews	Search JetBlue flights
Air Canada	PriceFrom $521	Free Cancellation	Rating 7.1 10,603 reviews	Search Air Canada flights
American Airlines	PriceFrom $551	Free Cancellation	Rating 7.2 11,097 reviews	Search American Airlines flights
British Airways	PriceFrom $554	Free Cancellation	Rating 6.7 7,659 reviews	Search British Airways flights
United Airlines	PriceFrom $565	Free Cancellation	Rating 7.4 9,142 reviews	Search United Airlines flights
Iberia	PriceFrom $579	Free Cancellation	Rating 7.0 3,079 reviews	Search Iberia flights
Virgin Atlantic	PriceFrom $587	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights
Delta	PriceFrom $607	Free Cancellation	Rating 7.9 8,032 reviews	Search Delta flights
Finnair	PriceFrom $613	Free Cancellation	Rating 7.6 1,346 reviews	Search Finnair flights
Lufthansa	PriceFrom $697	Free Cancellation	Rating 6.8 7,698 reviews	Search Lufthansa flights

Finnair Flights From Houston George Bush Intcntl Airport to London
The lowest priced Finnair flight from Houston George Bush Intcntl Airport to London from the last 72 hours was $613. Generally, Finnair has 8 flights on this route every week with an average price of $725. Finnair is rated 7.6/10 by our users.
Austrian Airlines Flights From Houston George Bush Intcntl Airport to London
The best Austrian Airlines deal for Houston George Bush Intcntl Airport to London flight tickets found on momondo in the last 72 hours was $723, round-trip. It should be noted that an average Austrian Airlines flight deal for this route in this time was higher, at $1,294 round-trip. Austrian Airlines operates 14 flights out of Houston George Bush Intcntl Airport into London in an average week, so prices vary by time and availability. 889 Austrian Airlines reviews by users on momondo have scored the airline at 7.6/10.

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Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Houston to London. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to London from Houston on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Houston and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to London from Houston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Houston George Bush Intcntl Airport to London from $374

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How to get the cheapest flight ticket from Houston George Bush Intcntl Airport to London

What is the cheapest month to fly to London?

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

What is the cheapest Houston George Bush Intcntl to London flight route?

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

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

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

There are 4 cabin classes available to choose from on Houston George Bush Intcntl to London 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 Houston George Bush Intcntl Airport to London flights?

You could potentially save up to 6% on your flight if you consider stops on a Houston George Bush Intcntl Airport to London flight.

How have Houston George Bush Intcntl Airport to London flight prices changed over time?

As of January 2026, prices for Houston George Bush Intcntl Airport to London flights are approximately 69% more expensive when compared to flights at the same time last year.

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

British Airways, Delta, and Finnair are the most popular carriers operating from Houston George Bush Intcntl 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 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 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. 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 least number of delays on this route over the last 12 months; with about 19% of their flights experiencing any sort of delay.

Which airport is the most popular layover for flights between Houston George Bush Intcntl Airport and London?

Toronto (YYZ) was the most common stop: 63% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Houston George Bush Intcntl Airport to London?

Flights via Washington, D.C. (IAD) offer the lowest average round-trip price of $756.

Which layover airport has the shortest travel time from Houston George Bush Intcntl Airport to London?

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 12h 28m.

Which layover airport has the shortest connection time from Houston George Bush Intcntl Airport to London?

Dallas (DFW) has the shortest average layover time for this route: 2h 21m.

How many flights depart from Houston George Bush Intcntl Airport to London on average per day?

As of January 2026, there are 17 flights per day flying from Houston George Bush Intcntl Airport to London. The most common time of day flights depart is 4:00PM, with 58% of flights taking off in the afternoon.

How many flights depart from Houston George Bush Intcntl Airport to London on average per week?

As of January 2026, there are 124 flights per week flying from Houston George Bush Intcntl Airport to London. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.

When to book flights from Houston George Bush Intcntl Airport to London

Cheap Houston George Bush Intcntl Airport to London (IAH to LON) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in London

How far is Houston George Bush Intcntl to London by plane?

When did momondo last update prices for flights from Houston George Bush Intcntl Airport to London?

How many operators does momondo search for flights from Houston George Bush Intcntl Airport to London?

How old do you have to be to fly from Houston George Bush Intcntl Airport to London?

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

What is the most popular plane model from Houston George Bush Intcntl Airport to London?

What is the most popular airline from Houston George Bush Intcntl Airport to London?

Best airlines flying from Houston George Bush Intcntl Airport to London

Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to London with momondo

Finnair Flights From Houston George Bush Intcntl Airport to London

Austrian Airlines Flights From Houston George Bush Intcntl Airport to London

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?