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$381+ 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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LHR
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheapflights Tip: The best prices from Houston George Bush Intcntl to London Heathrow are usually found in October or September, booked 18 days in advance, depart on a Wednesday or Sunday and return on a Sunday

Cheap 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 December 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:55 amIAH - LHR
1 stop14h 00mLufthansa
Fri 1/238:30 amLHR - IAH
2 stops20h 28mLufthansa
Deal found 12/10$605
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:55 amIAH - LHR
1 stop14h 00mBrussels Airlines
Fri 1/2310:25 amLHR - IAH
1 stop14h 36mBrussels Airlines
Deal found 12/11$607
This Delta deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:27 amIAH - LHR
1 stop18h 38mDelta
Wed 1/1410:00 amLHR - IAH
1 stop33h 30mDelta
Deal found 12/11$617
This Gotogate deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:05 pmIAH - LHR
1 stop30h 50mMultiple Airlines
Tue 1/136:50 amLHR - IAH
2 stops20h 49mMultiple Airlines
Deal found 12/10$621
This FlightHub deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:10 amIAH - LHR
1 stop19h 20mAir Canada
Tue 1/136:50 amLHR - IAH
2 stops20h 49mAir Canada
Deal found 12/11$622
This Delta deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:30 pmIAH - LHR
1 stop11h 30mDelta
Wed 1/148:40 amLHR - IAH
1 stop34h 50mDelta
Deal found 12/11$623
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:27 pmIAH - LHR
1 stop11h 53mBrussels Airlines
Tue 1/139:10 amLHR - IAH
1 stop15h 36mBrussels Airlines
Deal found 12/11$624
This Gotogate deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:10 amIAH - LHR
1 stop19h 20mMultiple Airlines
Mon 1/196:30 pmLHR - IAH
2 stops33h 09mMultiple Airlines
Deal found 12/11$625
This Delta deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:27 amIAH - LHR
1 stop18h 38mDelta
Thu 1/1511:45 amLHR - IAH
2 stops18h 11mDelta
Deal found 12/11$628
This Delta deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:30 pmIAH - LHR
1 stop11h 30mDelta
Thu 1/1510:00 amLHR - IAH
2 stops19h 56mDelta
Deal found 12/11$633
This Cheapflightsfares deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/303:55 pmIAH - LHR
2 stops23h 05mLufthansa
Mon 1/191:50 pmLHR - IAH
2 stops30h 50mLufthansa
Deal found 12/11$634
This United Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:40 pmIAH - LHR
1 stop29h 15mUnited Airlines
Fri 1/99:00 amLHR - IAH
2 stops32h 09mUnited Airlines
Deal found 12/11$639

Find flight deals from George Bush Intcntl to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$599
(Gotogate)

One-way from

$381
(Mytrip)

Popular in

June

Cheapest in

October

Average price

$1,111

Good round-trip deal

$704 or less

Good one-way deal

$401 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.
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From Houston George Bush Intcntl to London Heathrow
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One-way flight from Houston George Bush Intcntl to London Heathrow
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($217 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from George Bush Intcntl to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
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

George Bush Intcntl

Fly to

Heathrow

Route

Depart

Return

Price

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 2/9

4:20 pm-7:30 am

Nonstop9h 10m

London Heathrow

Thu 3/5

11:10 am-4:30 pm

1 stop35h 20m

$630

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 2/9

4:06 pm-9:40 pm

2 stops23h 34m

London Heathrow

Thu 3/5

6:40 am-11:37 pm

2 stops22h 57m

$631

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Thu 1/29

9:54 am-6:30 pm

2 stops26h 36m

London Heathrow

Tue 2/3

6:40 am-11:37 pm

2 stops22h 57m

$631

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 2/9

12:47 pm-7:05 am

1 stop12h 18m

London Heathrow

Mon 2/16

5:35 pm-1:55 pm

1 stop26h 20m

$644

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 1/7

7:05 pm-10:15 am

Nonstop9h 10m

London Heathrow

Tue 1/13

1:25 pm-9:39 pm

1 stop14h 14m

$652

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Thu 1/29

9:54 am-5:40 pm

2 stops25h 46m

London Heathrow

Mon 2/2

6:40 am-11:37 pm

2 stops22h 57m

$661

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 3/1

4:20 pm-7:30 am

Nonstop9h 10m

London Heathrow

Fri 3/6

6:35 am-4:30 pm

1 stop15h 55m

$662

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 1/26

12:40 pm-6:50 pm

3 stops24h 10m

London Heathrow

Tue 2/3

10:20 am-11:37 pm

2 stops19h 17m

$664

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 12/29

7:55 pm-7:55 am

1 stop30h 00m

London Heathrow

Thu 1/8

9:00 am-11:09 am

2 stops32h 09m

$675

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 3/1

4:05 pm-1:45 pm

1 stop15h 40m

London Heathrow

Fri 3/6

6:30 am-5:35 pm

2 stops17h 05m

$678

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 22 results
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Compare providers for flights from George Bush Intcntl to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
JetabroadPrice Accuracy3 starsTrust 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

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

Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to Heathrow. Price data was last updated on December 5, 2025.

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, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport (average of $508). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in June is currently the most expensive (average of $909). 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?

Find hourly flight availability from George Bush Intcntl to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 10% 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?

Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to Heathrow. Price data was last updated on December 16, 2024.

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.

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

AI-powered summary based on content written by travel experts. AI can make mistakes.
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.

Read more about IAHBy Evie Carrick
LHR

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

Read more about LHRBy Ramsey Qubein
Our travel experts
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick

Evie Carrick

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated December 12, 2025.
Get a feel of what it's like to fly with Finnair, United Airlines, and American Airlines 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.
Finnair
7.6
Good
1,334 reviews

Comfort

7.4

Crew

8.1

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
Finnair
7.6
Good
1,334 reviews
Finnair
7.6
Good
1,334 reviews

Comfort

7.4

Crew

8.1

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
United Airlines
7.4
Good
9,095 reviews
Finnair
7.6
Good
1,334 reviews

Comfort

7.4

Crew

8.1

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
American Airlines
7.2
Good
11,050 reviews
Finnair
7.6
Good
1,334 reviews

Comfort

7.4

Crew

8.1

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
Iberia
7.0
Good
3,045 reviews
Finnair
7.6
Good
1,334 reviews

Comfort

7.4

Crew

8.1

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
British Airways
6.7
Okay
7,571 reviews
Finnair
7.6
Good
1,334 reviews

Comfort

7.4

Crew

8.1

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(

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?

    United Airlines, Scandinavian Airlines, and Delta can get you from Houston George Bush Intcntl Airport to London Heathrow Airport in just under 9h 10m. Your travel time can differ by up to 14h 24m. 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 $558, 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 $221. Users have also found prices from $296 and $381 on Lufthansa and Iberia, 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 (73%), Aer Lingus (73%), Finnair( 73%).

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

    On average you can expect to pay $2,779 for a flight from Houston George Bush Intcntl Airport to London Heathrow Airport. The cheapest flight overall is $307 while the most popular route, (Houston George Bush Intcntl - London Heathrow) is currently priced at $569.

  • 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, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport (average of $508). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in June is currently the most expensive (average of $909). 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.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Wembley

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from George Bush Intcntl to Heathrow

Discover the top 10 airlines that operate flights from George Bush Intcntl to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$783FlexibilityNo cancel feeOn-time62%
Air CanadaCheapest$521Average$777FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$558Average$889FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$565Average$906FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$572Average$831FlexibilityNo cancel feeOn-time71%
IberiaCheapest$579Average$783FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$587Average$877FlexibilityNo cancel feeOn-time72%
FinnairCheapest$592Average$744FlexibilityNo cancel feeOn-time76%
DeltaCheapest$607Average$1,049FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$722Average$994FlexibilityNo cancel feeOn-time76%

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