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

Air Canada, Austrian Airlines, and Lufthansa are the most popular carriers operating from Houston George Bush Intcntl to London

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.

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.

What airlines fly to London?

British Airways, United Airlines and Iberia are the top three most popular airlines that fly to London from Houston George Bush Intcntl Airport 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.

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

Frankfurt am Main (FRA) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

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.

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.

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 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 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.

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

As of November 2025, 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.

$363 Cheap Flights from Houston George Bush Intcntl Airport to London in 2025/26

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

As of November 2025, there are 18 flights per day flying from Houston George Bush Intcntl Airport to London. The most common time of day flights depart is 4:00PM, with 57% of flights taking off in the afternoon.

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7:45 pm - 10:00 amIAH-LGW

32h 15m1 stop

2:00 pm - 10:41 pmLGW-IAH

14h 41m1 stop

$622Multiple Airlines

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Wed, Jan 7 - Sat, Jan 10

12:29 pm - 6:20 amIAH-LHR

11h 51m1 stop

10:25 am - 7:01 pmLHR-IAH

14h 36m1 stop

$623Brussels Airlines

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Wed, Jan 7 - Tue, Jan 13

3:03 pm - 8:45 amIAH-LHR

11h 42m1 stop

6:30 am - 1:30 pmLHR-IAH

13h 00m1 stop

$624KLM

Find Deal

Mon, Jan 12 - Tue, Jan 27

3:50 pm - 6:50 amIAH-LHR

9h 00mnonstop

9:35 am - 2:05 pmLHR-IAH

10h 30mnonstop

$625British Airways

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Tue, Dec 2 - Tue, Dec 9

6:00 am - 7:30 amIAH-LGW

19h 30m2 stops

11:20 am - 11:59 pmLGW-IAH

18h 39m2 stops

$625American 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

$627United Airlines

Find Deal

Wed, Jan 7 - Wed, Jan 14

4:20 pm - 7:30 amIAH-LHR

9h 10mnonstop

1:25 pm - 9:39 pmLHR-IAH

14h 14m1 stop

$631United Airlines

Find Deal

Wed, Dec 31 - Sun, Jan 18

9:45 pm - 12:45 pmIAH-LHR

9h 00mnonstop

9:35 am - 2:05 pmLHR-IAH

10h 30mnonstop

$632British Airways

Find Deal

Mon, Jan 26 - Tue, Feb 3

6:55 pm - 5:40 pmIAH-LCY

16h 45m1 stop

9:50 am - 6:15 pmLCY-IAH

14h 25m1 stop

$655Lufthansa

Find Deal

Wed, Jan 14 - Wed, Jan 21

6:05 pm - 6:35 pmIAH-LCY

18h 30m1 stop

9:15 am - 6:00 pmLCY-IAH

14h 45m1 stop

$669Lufthansa

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Wed, Apr 15 - Thu, Apr 30

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 7

IAH7:05 pmHouston George Bush Intcntl

9h 10m

LHR10:15 amLondon Heathrow

Jan 14

LHR9:30 amLondon Heathrow

14h 45m

1 stop

IAH6:15 pmHouston George Bush Intcntl

$627

Find similar

United Airlines

Jan 26

IAH4:20 pmHouston George Bush Intcntl

9h 10m

LHR7:30 amLondon Heathrow

Feb 4

LHR9:30 amLondon Heathrow

14h 45m

1 stop

IAH6:15 pmHouston George Bush Intcntl

$628

Find similar

United Airlines

Dec 31

IAH7:05 pmHouston George Bush Intcntl

9h 10m

LHR10:15 amLondon Heathrow

Jan 18

LHR10:00 amLondon Heathrow

10h 45m

IAH2:45 pmHouston George Bush Intcntl

$631

Find similar

Iberia flights from Houston George Bush Intcntl Airport to London

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

Iberia

Jan 26

IAH9:45 pmHouston George Bush Intcntl

9h 00m

LHR12:45 pmLondon Heathrow

Feb 6

LHR9:35 amLondon Heathrow

10h 30m

IAH2:05 pmHouston George Bush Intcntl

$632

Find similar

Iberia

Feb 15

IAH12:38 pmHouston George Bush Intcntl

19h 57m

2 stops

LCY2:35 pmLondon City

Feb 25

LCY7:50 amLondon City

18h 35m

2 stops

IAH8:25 pmHouston George Bush Intcntl

$693

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momondo Fare Finder

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HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

Wed 1/7

7:45 pm-10:00 am

1 stop32h 15m

London Gatwick

Sat 1/10

2:00 pm-10:41 pm

1 stop14h 41m

$622

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 1/7

12:29 pm-6:20 am

1 stop11h 51m

London Heathrow

Tue 1/13

10:25 am-7:01 pm

1 stop14h 36m

$623

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 1/12

3:03 pm-8:45 am

1 stop11h 42m

London Heathrow

Tue 1/27

6:30 am-1:30 pm

1 stop13h 00m

$624

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 12/2

3:50 pm-6:50 am

Nonstop9h 00m

London Heathrow

Tue 12/9

9:35 am-2:05 pm

Nonstop10h 30m

$625

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

Mon 1/26

6:00 am-7:30 am

2 stops19h 30m

London Gatwick

Tue 2/3

11:20 am-11:59 pm

2 stops18h 39m

$625

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 1/7

7:05 pm-10:15 am

Nonstop9h 10m

London Heathrow

Wed 1/14

9:30 am-6:15 pm

1 stop14h 45m

$627

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 12/31

4:20 pm-7:30 am

Nonstop9h 10m

London Heathrow

Sun 1/18

1:25 pm-9:39 pm

1 stop14h 14m

$631

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 1/26

9:45 pm-12:45 pm

Nonstop9h 00m

London Heathrow

Tue 2/3

9:35 am-2:05 pm

Nonstop10h 30m

$632

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

Wed 1/14

6:55 pm-5:40 pm

1 stop16h 45m

London City

Wed 1/21

9:50 am-6:15 pm

1 stop14h 25m

$655

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

Wed 4/15

6:05 pm-6:35 pm

1 stop18h 30m

London City

Thu 4/30

9:15 am-6:00 pm

1 stop14h 45m

$669

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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

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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 $663, 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 $681.

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

The cheapest day to depart from Houston George Bush Intcntl Airport 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 George Bush Intcntl Airport 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 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 $812 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 $703 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?

No. A direct flight is the cheapest option for a flight between Houston George Bush Intcntl Airport to London.

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

As of November 2025, prices for Houston George Bush Intcntl Airport to London flights are approximately 1% cheaper 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	$403
Fastest flight time	9h 00m
Direct flights	Every day
Airports in London	1 airport

The best one-way flight to London from Houston George Bush Intcntl Airport in the past 72 hours is $403. The best round-trip flight deal from Houston George Bush Intcntl Airport to London found on momondo in the last 72 hours is $696.

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 is 1 airport near London: London Heathrow (LHR)

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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 November 2025, 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 (45.09% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (19.56%), Boeing 787-10 Dreamliner (14.09%), and Boeing 777-300ER (8.46%).
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 21%, and American Airlines with 5%.

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 2,902 reviews	Search JetBlue flights
Virgin Atlantic	PriceFrom $476	Free Cancellation	Rating 7.5 673 reviews	Search Virgin Atlantic flights
Air Canada	PriceFrom $521	Free Cancellation	Rating 7.1 10,462 reviews	Search Air Canada flights
American Airlines	PriceFrom $551	Free Cancellation	Rating 7.2 11,045 reviews	Search American Airlines flights
British Airways	PriceFrom $566	Free Cancellation	Rating 6.7 7,534 reviews	Search British Airways flights
United Airlines	PriceFrom $571	Free Cancellation	Rating 7.4 9,027 reviews	Search United Airlines flights
Iberia	PriceFrom $580	Free Cancellation	Rating 7.0 3,027 reviews	Search Iberia flights
Finnair	PriceFrom $582	Free Cancellation	Rating 7.6 1,334 reviews	Search Finnair flights
Delta	PriceFrom $631	Free Cancellation	Rating 7.9 8,002 reviews	Search Delta flights
Austrian Airlines	PriceFrom $644	Free Cancellation	Rating 7.6 874 reviews	Search Austrian Airlines 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 $582. Generally, Finnair has 9 flights on this route every week with an average price of $739. 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 $644, 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. 874 Austrian Airlines reviews by users on momondo have scored the airline at 7.6/10.

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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 $363

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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

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 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?

No. A direct flight is the cheapest option for a flight between Houston George Bush Intcntl Airport to London.

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

As of November 2025, prices for Houston George Bush Intcntl Airport to London flights are approximately 1% cheaper when compared to flights at the same time last year.

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

Air Canada, Austrian Airlines, and Lufthansa 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 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.

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

Frankfurt am Main (FRA) was the most common stop: 33% 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 November 2025, there are 18 flights per day flying from Houston George Bush Intcntl Airport 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 George Bush Intcntl Airport to London on average per week?

As of November 2025, there are 129 flights per week flying from Houston George Bush Intcntl Airport to London. The most common day of the week flights depart is Thu, with 17% 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

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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?