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

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

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

Over the last year, American Airlines have had the lowest number of delays on this route, with just 21% of flights being delayed.

How often are flights from Houston to London delayed?

About 29% of weekly flights between Houston and London have experienced delays in the past year, with the average delay time being 143 minutes.

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

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

What are the most reliable airlines from Houston George Bush Intcntl Airport to London Heathrow Airport?

Before booking your flight to London Heathrow Airport from Houston George Bush Intcntl Airport, check out the most reliable airlines to get you to your destination on time: American Airlines (88%), Aer Lingus (88%), Finnair( 88%).

What are the most popular airlines that fly from Houston George Bush Intcntl Airport to London Heathrow Airport?

The most popular airlines flying from Houston George Bush Intcntl Airport to London Heathrow Airport are United Airlines, British Airways and Iberia. Something to consider prior to booking your flight.

Most accurate provider : When it comes to deals on Houston George Bush Intcntl Airport-London Heathrow Airport flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Houston George Bush Intcntl Airport-London Heathrow Airport flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-London Heathrow Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Houston George Bush Intcntl Airport-London Heathrow Airport flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston George Bush Intcntl Airport-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from George Bush Intcntl to Heathrow that include hotel bookings?

Yes. In addition to deals on George Bush Intcntl to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from George Bush Intcntl to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Heathrow.

Can I find deals for business class flights from George Bush Intcntl to Heathrow?

Yes. Cheapflights offers flight deals from George Bush Intcntl to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$274+ Cheap Flights from Houston George Bush Intcntl Airport to London Heathrow Airport

Q: How much does it cost to fly round-trip from Houston George Bush Intcntl Airport to London Heathrow Airport?

Airfare is below average for this route at the moment. Houston George Bush Intcntl Airport to London Heathrow Airport flights typically cost between $638 and $858 in March. The cheapest round-trip price found within the last 3 days was $566 on Multiple Airlines (Mar 2-Mar 5).

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Houston George Bush Intcntl to London Heathrow are usually found in September or October, booked 63 days in advance, depart on a Wednesday or Sunday and return on a Thursday

Find flight deals from George Bush Intcntl to Heathrow

Cheapest flights from George Bush Intcntl to Heathrow
Explore the most affordable flight options available from George Bush Intcntl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

Tue 11/411:49 amIAH - LHR

1 stop12h 36mVirgin Atlantic

Tue 11/113:50 pmLHR - IAH

1 stop14h 07mVirgin Atlantic

Deal found 10/27

$560

Sun 11/96:40 pmIAH - LHR

1 stop11h 00mVirgin Atlantic

Tue 11/256:30 amLHR - IAH

1 stop13h 00mVirgin Atlantic

Deal found 10/26

$570

Mon 10/2712:30 pmIAH - LHR

2 stops27h 05mAir Canada

Tue 11/116:50 amLHR - IAH

2 stops20h 49mAir Canada

Deal found 10/26

$574

Sun 11/95:25 pmIAH - LHR

1 stop36h 25mAir Canada

Tue 11/256:50 amLHR - IAH

2 stops20h 49mAir Canada

Deal found 10/28

$575

Wed 11/56:09 pmIAH - LHR

1 stop11h 31mMultiple Airlines

Wed 11/126:20 amLHR - IAH

1 stop13h 35mMultiple Airlines

Deal found 10/27

$577

Sun 11/912:35 pmIAH - LHR

1 stop11h 50mDelta

Tue 11/256:20 amLHR - IAH

1 stop13h 35mDelta

Deal found 10/26

$579

Sun 11/91:36 pmIAH - LHR

1 stop13h 24mVirgin Atlantic

Thu 11/206:20 amLHR - IAH

1 stop13h 35mVirgin Atlantic

Deal found 10/27

$582

Wed 11/266:45 amIAH - LHR

1 stop18h 20mVirgin Atlantic

Tue 12/28:25 pmLHR - IAH

1 stop23h 05mVirgin Atlantic

Deal found 10/27

$583

Best flights from George Bush Intcntl to Heathrow
Discover carefully curated flight deals from George Bush Intcntl to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2025.

Sun 11/91:36 pmIAH - LHR

1 stop12h 14mMultiple Airlines

Tue 11/256:20 amLHR - IAH

1 stop13h 35mMultiple Airlines

Deal found 10/26

$582

Wed 3/412:55 pmIAH - LHR

1 stop13h 10mDelta

Tue 3/106:20 amLHR - IAH

1 stop13h 35mDelta

Deal found 10/26

$590

Tue 1/133:50 pmIAH - LHR

Nonstop9h 00mBritish Airways

Wed 1/289:35 amLHR - IAH

Nonstop10h 30mBritish Airways

Deal found 10/27

$593

Wed 1/712:47 pmIAH - LHR

1 stop12h 18mKLM

Wed 1/1410:45 amLHR - IAH

1 stop16h 30mKLM

Deal found 10/27

$607

Fri 11/2811:35 amIAH - LHR

1 stop16h 25mVirgin Atlantic

Fri 12/56:20 amLHR - IAH

1 stop13h 35mVirgin Atlantic

Deal found 10/26

$632

Sun 1/116:00 pmIAH - LHR

1 stop20h 10mDelta

Thu 1/296:20 amLHR - IAH

1 stop13h 35mDelta

Deal found 10/27

$590

Fri 11/711:49 amIAH - LHR

1 stop12h 36mVirgin Atlantic

Mon 11/108:25 pmLHR - IAH

1 stop23h 05mVirgin Atlantic

Deal found 10/27

$633

Wed 1/76:37 pmIAH - LHR

1 stop11h 03mDelta

Wed 1/148:55 amLHR - IAH

2 stops21h 03mDelta

Deal found 10/27

$600

Mon 2/95:25 amIAH - LHR

1 stop19h 00mDelta

Mon 2/162:45 pmLHR - IAH

1 stop29h 10mDelta

Deal found 10/26

$603

Wed 12/312:40 pmIAH - LHR

2 stops15h 50mDelta

Mon 12/85:35 pmLHR - IAH

1 stop26h 20mDelta

Deal found 10/26

$614

Thu 11/271:36 pmIAH - LHR

1 stop16h 04mDelta

Thu 12/46:20 amLHR - IAH

1 stop13h 35mDelta

Deal found 10/27

$632

Last-minute flights from George Bush Intcntl to Heathrow
Discover last-minute flight deals from George Bush Intcntl to Heathrow. Data last updated October 28, 2025 and is based on user searches.

Mon 10/2712:30 pmIAH - LHR

2 stops27h 05mAir Canada

Tue 11/116:50 amLHR - IAH

2 stops20h 49mAir Canada

Deal found 10/26

$574

Tue 11/411:49 amIAH - LHR

1 stop12h 36mVirgin Atlantic

Tue 11/113:50 pmLHR - IAH

1 stop14h 07mVirgin Atlantic

Deal found 10/27

$560

Wed 11/56:09 pmIAH - LHR

1 stop11h 31mMultiple Airlines

Wed 11/126:20 amLHR - IAH

1 stop13h 35mMultiple Airlines

Deal found 10/27

$577

Sun 11/96:40 pmIAH - LHR

1 stop11h 00mVirgin Atlantic

Tue 11/256:30 amLHR - IAH

1 stop13h 00mVirgin Atlantic

Deal found 10/26

$570

Sun 11/95:25 pmIAH - LHR

1 stop36h 25mAir Canada

Tue 11/256:50 amLHR - IAH

2 stops20h 49mAir Canada

Deal found 10/26

$576

Sun 11/912:35 pmIAH - LHR

1 stop11h 50mDelta

Tue 11/256:20 amLHR - IAH

1 stop13h 35mDelta

Deal found 10/26

$579

Sun 11/91:36 pmIAH - LHR

1 stop13h 24mVirgin Atlantic

Thu 11/206:20 amLHR - IAH

1 stop13h 35mVirgin Atlantic

Deal found 10/27

$582

Wed 11/266:45 amIAH - LHR

1 stop18h 20mVirgin Atlantic

Tue 12/28:25 pmLHR - IAH

1 stop23h 05mVirgin Atlantic

Deal found 10/27

$583

One-way flights from George Bush Intcntl to Heathrow
Search for one-way flight options from George Bush Intcntl to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 28, 2025.

Tue 11/185:14 amIAH - LHR

2 stops23h 36mMultiple Airlines

Deal found 10/27

$274

Mon 11/176:00 amIAH - LHR

3 stops22h 50mMultiple Airlines

Deal found 10/27

$279

Mon 2/210:28 pmIAH - LHR

2 stops32h 22mMultiple Airlines

Deal found 10/27

$280

Sun 11/236:10 amIAH - LHR

3 stops46h 40mMultiple Airlines

Deal found 10/27

$283

Wed 11/268:35 pmIAH - LHR

3 stops32h 15mMultiple Airlines

Deal found 10/27

$284

Sun 2/17:00 amIAH - LHR

2 stops29h 00mMultiple Airlines

Deal found 10/27

$285

Mon 11/38:35 pmIAH - LHR

3 stops52h 30mMultiple Airlines

Deal found 10/27

$287

Sun 11/162:59 pmIAH - LHR

2 stops37h 16mMultiple Airlines

Deal found 10/28

$290

Wed 2/412:17 pmIAH - LHR

3 stops23h 43mMultiple Airlines

Deal found 10/27

$292

Wed 11/195:14 amIAH - LHR

2 stops25h 26mMultiple Airlines

Deal found 10/27

$293

Mon 11/246:04 amIAH - LHR

3 stops22h 46mMultiple Airlines

Deal found 10/27

$294

Cheap flight deals from George Bush Intcntl to Heathrow

Most accurate provider	Mytrip 3 stars
Most trusted provider	Mytrip 3 stars
Round-trip from	$566 (United)
One-way from	$274 (Kiwi.com)
Popular in	June
Cheapest in	September
Average price	$677
Good round-trip deal	$713 or less
Good one-way deal	$436 or less

Provider with most accurate pricing for Houston George Bush Intcntl-London Heathrow flight deals.

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Provider most trusted by Cheapflights users for Houston George Bush Intcntl-London Heathrow flights.

Search Deals

From Houston George Bush Intcntl to London Heathrow

Search Deals

One-way flight from Houston George Bush Intcntl to London Heathrow

Search Deals

Highest demand for flights based on searches. 21% potential increase in price ($216 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Price to beat on a round-trip flight from Houston George Bush Intcntl to London Heathrow.

Search Deals

Price to beat on a one-way flight from Houston George Bush Intcntl to London Heathrow.

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 11/9

1:36 pm-7:50 am

1 stop12h 14m

London Heathrow

Tue 11/25

6:20 am-1:55 pm

1 stop13h 35m

$582

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 3/4

12:55 pm-8:05 am

1 stop13h 10m

London Heathrow

Tue 3/10

6:20 am-2:55 pm

1 stop13h 35m

$590

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 1/11

6:00 pm-8:10 pm

1 stop20h 10m

London Heathrow

Thu 1/29

6:20 am-1:55 pm

1 stop13h 35m

$590

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 1/13

3:50 pm-6:50 am

Nonstop9h 00m

London Heathrow

Wed 1/28

9:35 am-2:05 pm

Nonstop10h 30m

$593

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 1/7

6:37 pm-11:40 am

1 stop11h 03m

London Heathrow

Wed 1/14

8:55 am-11:58 pm

2 stops21h 03m

$600

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 2/9

5:25 am-6:25 am

1 stop19h 00m

London Heathrow

Mon 2/16

2:45 pm-1:55 pm

1 stop29h 10m

$603

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 1/7

12:47 pm-7:05 am

1 stop12h 18m

London Heathrow

Wed 1/14

10:45 am-9:15 pm

1 stop16h 30m

$607

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 12/3

12:40 pm-10:30 am

2 stops15h 50m

London Heathrow

Mon 12/8

5:35 pm-1:55 pm

1 stop26h 20m

$614

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Fri 11/28

11:35 am-10:00 am

1 stop16h 25m

London Heathrow

Fri 12/5

6:20 am-1:55 pm

1 stop13h 35m

$632

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Thu 11/27

1:36 pm-11:40 am

1 stop16h 04m

London Heathrow

Thu 12/4

6:20 am-1:55 pm

1 stop13h 35m

$632

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 23 results

Compare providers for flights from George Bush Intcntl to Heathrow

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from George Bush Intcntl to Heathrow in October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
JustAirTicket	Price Accuracy-	Trust Score*1 star
Mytrip	Price Accuracy3 stars	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star
Jetabroad	Price Accuracy3 stars	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-London Heathrow Airport flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Houston George Bush Intcntl Airport-London Heathrow Airport flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-London Heathrow Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-London Heathrow Airport flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston George Bush Intcntl Airport-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from George Bush Intcntl to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from George Bush Intcntl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston George Bush Intcntl Airport to London Heathrow Airport

Prices

Delays

How far ahead should I book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport?

The best time to book flights from Houston George Bush Intcntl Airport to London Heathrow Airport is 18 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport (average of $509). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in June is currently the most expensive (average of $914). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAH to LHR?

Unlike in the evening, when flights are generally more expensive, you can save up to 12% on flights from Houston George Bush Intcntl Airport to London Heathrow Airport by exploring options for tickets at noon.

What is the cheapest day to fly from Houston George Bush Intcntl Airport to London Heathrow Airport?

Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to London Heathrow Airport flight should consider departing on Saturday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Houston George Bush Intcntl Airport to London Heathrow Airport?

The best insider tips for Houston George Bush Intcntl Airport to London Heathrow Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to London Heathrow Airport trip

Airports

IAH

Check the security checkpoint wait times on the IAH website to save time before your flight.

LHR

Take the Heathrow Express for the fastest route to central London, arriving at Paddington Station.

Our travel experts

Evie Carrick

Expert on IAH

Ramsey Qubein

Expert on LHR

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with United Airlines, American Airlines, and Iberia from Houston George Bush Intcntl Airport to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,996 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

8,996 reviews

United Airlines

7.4

Good

8,996 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

American Airlines

7.2

Good

11,034 reviews

United Airlines

7.4

Good

8,996 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Iberia

7.0

Good

3,001 reviews

United Airlines

7.4

Good

8,996 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Lufthansa

6.8

Okay

7,532 reviews

United Airlines

7.4

Good

8,996 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

British Airways

6.7

Okay

7,481 reviews

United Airlines

7.4

Good

8,996 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

How long is the flight from Houston George Bush Intcntl Airport to London Heathrow Airport?
Delta and KLM can get you from Houston George Bush Intcntl Airport to London Heathrow Airport in just under 12h 20m. Your travel time can differ by up to 50m. Houston George Bush Intcntl Airport and London Heathrow Airport are separated by a distance of 4820 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Houston George Bush Intcntl Airport to London Heathrow Airport round-trip?
Currently priced at $101, JetBlue will fly you from Houston George Bush Intcntl Airport to London Heathrow Airport and back. In addition to JetBlue, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and British Airways - these airlines can fly you to your destination from $521 and $563, respectively. These flights start at 87% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Houston George Bush Intcntl Airport to London Heathrow Airport one-way?
For one-way options, check prices for WestJet. According to our data, you can fly for as low as $298. Users have also found prices from $349 and $394 on JetBlue and United Airlines, respectively.
What are the most reliable airlines from Houston George Bush Intcntl Airport to London Heathrow Airport?
Before booking your flight to London Heathrow Airport from Houston George Bush Intcntl Airport, check out the most reliable airlines to get you to your destination on time: American Airlines (88%), Aer Lingus (88%), Finnair( 88%).
What are the cheapest flights from Houston George Bush Intcntl Airport to London Heathrow Airport?
On average you can expect to pay $2,890 for a flight from Houston George Bush Intcntl Airport to London Heathrow Airport. The cheapest flight overall is $394 while the most popular route, (Houston George Bush Intcntl - London Heathrow) is currently priced at $498.
Can I find deals for flights from George Bush Intcntl to Heathrow that include hotel bookings?
Yes. In addition to deals on George Bush Intcntl to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from George Bush Intcntl to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Heathrow.
Can I find deals for business class flights from George Bush Intcntl to Heathrow?
Yes. Cheapflights offers flight deals from George Bush Intcntl to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport?
Currently, November is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport (average of $509). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in June is currently the most expensive (average of $914). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 10 airlines flying from George Bush Intcntl to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest$101	Average$783	FlexibilityNo cancel fee	On-time62%
Air Canada	Cheapest$521	Average$709	FlexibilityNo cancel fee	On-time67%
British Airways	Cheapest$563	Average$887	FlexibilityNo cancel fee	On-time70%
American Airlines	Cheapest$572	Average$870	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$573	Average$902	FlexibilityNo cancel fee	On-time69%
Iberia	Cheapest$580	Average$771	FlexibilityNo cancel fee	On-time77%
Finnair	Cheapest$582	Average$739	FlexibilityNo cancel fee	On-time76%
Virgin Atlantic	Cheapest$587	Average$874	FlexibilityNo cancel fee	On-time72%
Delta	Cheapest$631	Average$1,049	FlexibilityNo cancel fee	On-timeN/A
Austrian Airlines	Cheapest$644	Average$1,303	FlexibilityNo cancel fee	On-time78%

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$274+ Cheap flights from George Bush Intcntl (IAH) to Heathrow (LHR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from George Bush Intcntl to Heathrow with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Houston George Bush Intcntl to London Heathrow are usually found in September or October, booked 63 days in advance, depart on a Wednesday or Sunday and return on a Thursday

Find flight deals from George Bush Intcntl to Heathrow

Cheapest flights from George Bush Intcntl to HeathrowExplore the most affordable flight options available from George Bush Intcntl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

Explore the most affordable flight options available from George Bush Intcntl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

Cheap flight deals from George Bush Intcntl to Heathrow

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

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Everything you need to know about your flight from Houston George Bush Intcntl Airport to London Heathrow Airport

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The best insider tips for Houston George Bush Intcntl Airport to London Heathrow Airport flights

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Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Houston George Bush Intcntl Airport to London Heathrow Airport?

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What are the cheapest flights from Houston George Bush Intcntl Airport to London Heathrow Airport?

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Cheapest flights from George Bush Intcntl to Heathrow
Explore the most affordable flight options available from George Bush Intcntl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.