Cheap flights from Houston George Bush Intcntl Airport to London Heathrow Airport from £210

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 19/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LHR
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Houston George Bush Intcntl to London Heathrow are usually found in October or September, booked 20 days in advance, depart on a Tuesday or Sunday and return on a Wednesday

Cheap 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 16 September 2025.

Round-trip from

£376

One-way from

£210

Popular in

June

Cheapest in

October

Average price

£497

Good round-trip deal

£425 or less

Good one-way deal

£289 or less
British Airways
  • British Airways
  • 15/3-23/3
  • 2 total stops
  • 65h 15m total
  • Houston to London
19/11
  • 19/11
  • 3 total stops
  • 27h 30m total
  • Houston to London
Highest demand for flights based on searches. 21% potential increase in price (£119 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Houston George Bush Intcntl to London Heathrow.
Price to beat on a one-way flight from Houston George Bush Intcntl to London Heathrow.

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 16 September 2025.

Tue 14/1012:05IAH - LHR
2 stops15h 30mAir Canada
Tue 21/1006:50LHR - IAH
2 stops21h 24mAir Canada
Deal found 15/9£377
Wed 19/1114:38IAH - LHR
1 stop11h 47mUnited Airlines
Thu 27/1110:00LHR - IAH
Nonstop10h 45mUnited Airlines
Deal found 16/9£378
Wed 15/1020:15IAH - LHR
Nonstop9h 20mUnited Airlines
Thu 30/1006:35LHR - IAH
1 stop15h 35mUnited Airlines
Deal found 15/9£379
Wed 12/1112:30IAH - LHR
1 stop13h 35mDelta
Wed 19/1106:20LHR - IAH
2 stops18h 00mDelta
Deal found 15/9£380
Tue 30/915:59IAH - LHR
1 stop15h 31mDelta
Tue 21/1008:40LHR - IAH
2 stops19h 31mDelta
Deal found 14/9£380
Wed 8/1007:05IAH - LHR
1 stop17h 40mDelta
Tue 21/1008:40LHR - IAH
2 stops19h 31mDelta
Deal found 16/9£381
Wed 22/1021:00IAH - LHR
Nonstop9h 20mBritish Airways
Thu 30/1009:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 15/9£382
Tue 30/910:00IAH - LHR
2 stops14h 30mMultiple Airlines
Fri 10/1008:30LHR - IAH
1 stop32h 34mMultiple Airlines
Deal found 14/9£383
Tue 30/912:39IAH - LHR
1 stop12h 36mDelta
Thu 23/1006:15LHR - IAH
1 stop13h 20mDelta
Deal found 14/9£383
Sun 28/909:38IAH - LHR
1 stop15h 37mDelta
Fri 24/1006:30LHR - IAH
1 stop12h 45mDelta
Deal found 14/9£384
Wed 8/1021:00IAH - LHR
Nonstop9h 20mBritish Airways
Thu 23/1014:50LHR - IAH
Nonstop10h 25mBritish Airways
Deal found 15/9£386

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 16 September 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

Wed 19/11

11:05-07:05

1 stop14h 00m

London Heathrow

Thu 27/11

08:40-22:30

2 stops19h 50m

£380

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 7/10

15:30-06:40

Nonstop9h 10m

London Heathrow

Tue 28/10

09:35-15:05

Nonstop10h 30m

£386

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Thu 30/10

20:05-10:15

Nonstop9h 10m

London Heathrow

Thu 6/11

06:35-16:10

1 stop15h 35m

£400

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Thu 27/11

11:50-07:10

1 stop13h 20m

London Heathrow

Thu 4/12

06:35-16:10

1 stop15h 35m

£400

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 5/1

16:20-07:30

Nonstop9h 10m

London Heathrow

Sun 18/1

06:00-21:44

2 stops21h 44m

£405

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 1/10

10:00-06:30

1 stop14h 30m

London Heathrow

Sun 5/10

13:40-17:55

Nonstop10h 15m

£411

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 11/2

11:50-07:10

1 stop13h 20m

London Heathrow

Sun 22/2

10:00-14:45

Nonstop10h 45m

£411

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 30/12

16:20-07:30

Nonstop9h 10m

London Heathrow

Sun 11/1

12:05-16:50

Nonstop10h 45m

£411

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 4/1

22:04-09:40

1 stop29h 36m

London Heathrow

Sun 18/1

18:00-21:44

1 stop33h 44m

£411

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 5/1

19:05-10:15

Nonstop9h 10m

London Heathrow

Sun 25/1

10:00-14:45

Nonstop10h 45m

£411

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 23 results
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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 return 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 return flight from George Bush Intcntl to Heathrow. Price data was last updated on 12 September 2025.

The best time to book flights from Houston George Bush Intcntl Airport to London Heathrow Airport is 20 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, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport (average of £112). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in August is currently the most expensive (average of £164). 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 16 September 2025.

It’s typically best to fly out from Houston George Bush Intcntl Airport to London Heathrow Airport at midday. Doing so could potentially save you 11% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 16 September 2025.
See what other customers who have flown with United Airlines, Virgin Atlantic, andIberia from Houston George Bush Intcntl Airport to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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?

    For as low as £386, Delta can have you in London Heathrow Airport from Houston George Bush Intcntl Airport in 9h 10m. Houston George Bush Intcntl Airport and London Heathrow Airport are separated by a distance of 4820 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Houston George Bush Intcntl Airport to London Heathrow Airport round-trip?

    Our cheapest airline available from Houston George Bush Intcntl Airport to London Heathrow Airport is Virgin Atlantic. Our recent data shows that you can find tickets from as low as £298 on this airline. Additional options worth looking into are United Airlines and Iberia, starting at £384 and £422 round-trip. These flights start at 49% lower than the current average price 3 months from now.

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

    Consider American Airlines (87%), Aer Lingus (87%) or Finnair (87%) when booking your flight. These represent the most reliable airlines when flying from Houston George Bush Intcntl Airport to London Heathrow Airport.

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

    While on average a flight from Houston George Bush Intcntl Airport to London Heathrow Airport is generally £604, our data shows the cheapest flight currently is £274. When looking at the most popular route, (Houston George Bush Intcntl - London Heathrow), you can expect to pay £348 for that flight.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport (average of £112). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Slough
Gatwick
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Winchester
Chichester
Ipswich
Swindon
Dartford
Guildford
Brentford

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Alternative routes for George Bush Intcntl to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from George Bush Intcntl to Heathrow

Discover the top 5 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 858,174 searches. Data last updated 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£298Average£463FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£384Average£684FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£422Average£509FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£444Average£695FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£449Average£526FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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Can Cheapflights find flights from George Bush Intcntl to Heathrow with no change fees?

Certainly. Search results for flights to Heathrow from George Bush Intcntl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from George Bush Intcntl to Heathrow become cheaper?

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