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

Philadelphia (PHL) has the shortest average layover time for this route: 2h 12m.

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

Flights connecting via Philadelphia (PHL) have the shortest average one-way travel time: 12h 21m.

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

Philadelphia (PHL) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

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

WestJet is the most popular carrier operating from Houston George Bush Intcntl to London

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

As of August 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.

$238 Cheap Flights from Houston George Bush Intcntl Airport to London in 2025

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

As of August 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 58% of flights taking off in the evening.

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

As of August 2025, there are 130 flights per week flying from Houston George Bush Intcntl Airport to London. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

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Find the cheapest flights from Houston George Bush Intcntl Airport to London

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One-way

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3:30 pm - 6:40 amIAH-LHR

9h 10mnonstop

9:25 am - 1:40 pmLHR-IAH

10h 15mnonstop

$519British Airways

Find Deal

lun., sep. 1 - mar., sep. 16

4:36 pm - 10:50 amIAH-LHR

12h 14m1 stop

2:50 pm - 7:15 pmLHR-IAH

10h 25mnonstop

$520British Airways

Find Deal

lun., sep. 1 - mar., sep. 16

12:10 pm - 6:50 amIAH-LHR

12h 40m1 stop

9:35 am - 2:05 pmLHR-IAH

10h 30mnonstop

$521Iberia

Find Deal

mar., nov. 25 - mié., dic. 3

2:32 pm - 9:00 amIAH-LHR

12h 28m1 stop

10:30 am - 6:13 pmLHR-IAH

13h 43m1 stop

$525Finnair

Find Deal

lun., sep. 1 - mar., sep. 16

3:30 pm - 6:40 amIAH-LHR

9h 10mnonstop

9:35 am - 3:05 pmLHR-IAH

10h 30mnonstop

$527American Airlines

Find Deal

mié., oct. 8 - mié., oct. 29

4:47 pm - 10:50 amIAH-LHR

12h 03m1 stop

9:25 am - 1:45 pmLHR-IAH

10h 20mnonstop

$529Iberia

Find Deal

mié., oct. 8 - mié., oct. 15

6:08 pm - 12:05 pmIAH-LHR

11h 57m1 stop

8:20 am - 3:54 pmLHR-IAH

13h 34m1 stop

$541American Airlines

Find Deal

mar., nov. 25 - mié., dic. 10

2:27 pm - 2:25 pmIAH-LHR

17h 58m1 stop

2:50 pm - 7:15 pmLHR-IAH

10h 25mnonstop

$571Finnair

Find Deal

mié., oct. 1 - dom., oct. 5

3:35 pm - 6:35 pmIAH-LCY

21h 00m1 stop

7:10 pm - 1:35 pmLCY-IAH

24h 25m1 stop

$691Lufthansa

Find Deal

lun., sep. 8 - lun., sep. 15

3:35 pm - 6:35 pmIAH-LCY

21h 00m1 stop

7:10 pm - 5:09 pmLCY-IAH

27h 59m2 stops

$700Lufthansa

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lun., sep. 8 - lun., sep. 15

Virgin Atlantic flights from Houston George Bush Intcntl Airport to London

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

Virgin Atlantic

Sep 1

IAH6:00 pmHouston George Bush Intcntl

13h 30m

1 stop

LHR1:30 pmLondon Heathrow

Sep 16

LHR6:30 amLondon Heathrow

12h 45m

1 stop

IAH1:15 pmHouston George Bush Intcntl

$523

Find similar

Virgin Atlantic

Sep 3

IAH11:05 amHouston George Bush Intcntl

13h 15m

2 stops

LHR6:20 amLondon Heathrow

Sep 18

LHR6:15 amLondon Heathrow

13h 20m

1 stop

IAH1:35 pmHouston George Bush Intcntl

$588

Find similar

Virgin Atlantic

Aug 27

IAH11:05 amHouston George Bush Intcntl

13h 15m

2 stops

LHR6:20 amLondon Heathrow

Sep 1

LHR8:55 pmLondon Heathrow

22h 20m

1 stop

IAH1:15 pmHouston George Bush Intcntl

$589

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Delta flights from Houston George Bush Intcntl Airport to London

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

Delta

Sep 1

IAH1:07 pmHouston George Bush Intcntl

18h 23m

1 stop

LHR1:30 pmLondon Heathrow

Sep 16

LHR6:15 amLondon Heathrow

17h 26m

2 stops

IAH5:41 pmHouston George Bush Intcntl

$593

Find similar

Delta

Aug 27

IAH3:50 pmHouston George Bush Intcntl

15h 55m

1 stop

LHR1:45 pmLondon Heathrow

Sep 4

LHR6:15 amLondon Heathrow

13h 20m

1 stop

IAH1:35 pmHouston George Bush Intcntl

$599

Find similar

Delta

Sep 1

IAH6:00 pmHouston George Bush Intcntl

13h 30m

1 stop

LHR1:30 pmLondon Heathrow

Sep 10

LHR9:20 amLondon Heathrow

16h 40m

1 stop

IAH8:00 pmHouston George Bush Intcntl

$601

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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.

Fly from

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Route

Depart

Return

Price

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

lun. 9/1

3:30 pm-6:40 am

Nonstop9h 10m

London Heathrow

mar. 9/16

9:25 am-1:40 pm

Nonstop10h 15m

$519

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

lun. 9/1

4:36 pm-10:50 am

1 stop12h 14m

London Heathrow

mar. 9/16

2:50 pm-7:15 pm

Nonstop10h 25m

$520

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

mar. 11/25

12:10 pm-6:50 am

1 stop12h 40m

London Heathrow

mié. 12/3

9:35 am-2:05 pm

Nonstop10h 30m

$521

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

lun. 9/1

2:32 pm-9:00 am

1 stop12h 28m

London Heathrow

mar. 9/16

10:30 am-6:13 pm

1 stop13h 43m

$525

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

mié. 10/8

3:30 pm-6:40 am

Nonstop9h 10m

London Heathrow

mié. 10/29

9:35 am-3:05 pm

Nonstop10h 30m

$527

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

mié. 10/8

4:47 pm-10:50 am

1 stop12h 03m

London Heathrow

mié. 10/15

9:25 am-1:45 pm

Nonstop10h 20m

$529

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

mar. 11/25

6:08 pm-12:05 pm

1 stop11h 57m

London Heathrow

mié. 12/10

8:20 am-3:54 pm

1 stop13h 34m

$541

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

mié. 10/1

2:27 pm-2:25 pm

1 stop17h 58m

London Heathrow

dom. 10/5

2:50 pm-7:15 pm

Nonstop10h 25m

$571

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

lun. 9/8

3:35 pm-6:35 pm

1 stop21h 00m

London City

lun. 9/15

7:10 pm-1:35 pm

1 stop24h 25m

$691

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

lun. 9/8

3:35 pm-6:35 pm

1 stop21h 00m

London City

lun. 9/15

7:10 pm-5:09 pm

2 stops27h 59m

$700

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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

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 $661, are often lower during this time because this is during the off-season. The month of April is another great option to travel to London, with average flight prices from Houston George Bush Intcntl Airport averaging around $683.

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 $978. 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 $803 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 $715 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 1% 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 August 2025, prices for Houston George Bush Intcntl Airport to London flights are approximately 10% 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	$439
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 $439. The best round-trip flight deal from Houston George Bush Intcntl Airport to London found on momondo in the last 72 hours is $604.

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)

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 August 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 (53.86% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (17.90%), Boeing 787-10 Dreamliner (12.12%), and Boeing 777-300 (9.65%).
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 36% of the total bookings. Other popular airlines include British Airways with 28%, Iberia with 22%, 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 2,916 reviews	Search JetBlue flights
Delta	PriceFrom $396	Free Cancellation	Rating 7.9 7,982 reviews	Search Delta flights
American Airlines	PriceFrom $551	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Iberia	PriceFrom $580	Free Cancellation	Rating 7.0 2,887 reviews	Search Iberia flights
Finnair	PriceFrom $581	Free Cancellation	Rating 7.6 1,320 reviews	Search Finnair flights
Virgin Atlantic	PriceFrom $582	Free Cancellation	Rating 7.4 657 reviews	Search Virgin Atlantic flights
British Airways	PriceFrom $587	Free Cancellation	Rating 6.7 7,289 reviews	Search British Airways flights
United Airlines	PriceFrom $594	Free Cancellation	Rating 7.4 8,928 reviews	Search United Airlines flights
Lufthansa	PriceFrom $611	Free Cancellation	Rating 6.8 7,337 reviews	Search Lufthansa flights
Air Canada	PriceFrom $635	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada 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 $581. 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 $1,343 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. 830 Austrian Airlines reviews by users on momondo have scored the airline at 7.6/10.

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Crawley

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Stansted

Brentwood

Ilford

Folkestone

Colchester

Watford

Richmond

Canterbury

Croydon

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 $238

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Virgin Atlantic flights from Houston George Bush Intcntl Airport to London

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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?

You could potentially save up to 1% 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 August 2025, prices for Houston George Bush Intcntl Airport to London flights are approximately 10% 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?

WestJet is the most popular carrier operating from Houston George Bush Intcntl to London

What airlines fly to London?

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

Philadelphia (PHL) was the most common stop: 40% 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 Philadelphia (PHL) have the shortest average one-way travel time: 12h 21m.

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

Philadelphia (PHL) has the shortest average layover time for this route: 2h 12m.

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

As of August 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 58% of flights taking off in the evening.

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

As of August 2025, there are 130 flights per week flying from Houston George Bush Intcntl Airport to London. The most common day of the week flights depart is Mon, 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

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?

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

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