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Cheap flights from Houston George Bush Intcntl Airport to London Heathrow Airport from £234

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LHR
17 Apr — 24 Apr1
1 adult

Cheapflights Tip: The best prices from Houston George Bush Intcntl to London Heathrow are usually found in October or April, booked 69 days in advance, depart on a Monday or Wednesday 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 12 April 2025.

Round-trip from

£475

One-way from

£237

Popular in

June

Cheapest in

October

Average price

£525

Good round-trip deal

£548 or less

Good one-way deal

£313 or less
United Airlines
  • United Airlines
  • 13/5-22/5
  • 1 total stop
  • 28h 15m total
  • Houston to London
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12/5
  • 12/5
  • 2 total stops
  • 29h 56m total
  • Houston to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£149 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Houston George Bush Intcntl to London Heathrow.
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Price to beat on a one-way flight from Houston George Bush Intcntl to London Heathrow.
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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 12 April 2025.

Sun 27/416:15IAH - LHR
Nonstop9h 25mUnited Airlines
Tue 13/510:00LHR - IAH
Nonstop10h 20mUnited Airlines
Deal found 11/4£479
Wed 7/507:05IAH - LHR
1 stop17h 40mDelta
Wed 21/506:15LHR - IAH
2 stops17h 31mDelta
Deal found 11/4£479
Tue 29/413:25IAH - LHR
1 stop11h 55mIberia
Mon 5/509:25LHR - IAH
Nonstop10h 15mIberia
Deal found 11/4£482
Tue 6/510:00IAH - LHR
1 stop14h 30mMultiple Airlines
Tue 20/509:30LHR - IAH
2 stops15h 16mMultiple Airlines
Deal found 11/4£483
Wed 27/813:28IAH - LHR
1 stop12h 27mBritish Airways
Wed 3/914:50LHR - IAH
Nonstop10h 25mBritish Airways
Deal found 11/4£484
Tue 6/512:05IAH - LHR
2 stops15h 55mAir Canada
Tue 13/509:30LHR - IAH
2 stops15h 20mAir Canada
Deal found 11/4£485
Fri 1/816:33IAH - LHR
1 stop13h 42mFinnair
Fri 22/809:30LHR - IAH
2 stops20h 12mFinnair
Deal found 11/4£494
Mon 21/418:38IAH - LHR
1 stop12h 32mVirgin Atlantic
Mon 28/411:20LHR - IAH
1 stop15h 52mVirgin Atlantic
Deal found 11/4£508
Mon 21/420:27IAH - LHR
1 stop11h 58mAmerican Airlines
Tue 6/509:25LHR - IAH
Nonstop10h 15mAmerican Airlines
Deal found 11/4£525
Sun 27/415:35IAH - LHR
1 stop18h 05mLufthansa
Mon 5/513:30LHR - IAH
1 stop30h 05mLufthansa
Deal found 11/4£539
Tue 22/416:00IAH - LHR
2 stops23h 40mScandinavian Airlines
Wed 7/510:20LHR - IAH
2 stops19h 01mScandinavian Airlines
Deal found 11/4£548
Thu 1/512:00IAH - LHR
1 stop12h 45mAir France
Mon 5/506:15LHR - IAH
1 stop13h 20mAir France
Deal found 11/4£549

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 12 April 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

Sun 27/4

16:15-07:40

Nonstop9h 25m

London Heathrow

Tue 13/5

10:00-14:20

Nonstop10h 20m

£479

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 7/5

07:05-06:45

1 stop17h 40m

London Heathrow

Wed 21/5

06:15-17:46

2 stops17h 31m

£479

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 29/4

13:25-07:20

1 stop11h 55m

London Heathrow

Mon 5/5

09:25-13:40

Nonstop10h 15m

£482

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 6/5

10:00-06:30

1 stop14h 30m

London Heathrow

Tue 20/5

09:30-18:46

2 stops15h 16m

£483

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 27/8

13:28-07:55

1 stop12h 27m

London Heathrow

Wed 3/9

14:50-19:15

Nonstop10h 25m

£484

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 6/5

12:05-10:00

2 stops15h 55m

London Heathrow

Tue 13/5

09:30-18:50

2 stops15h 20m

£485

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Fri 1/8

16:33-12:15

1 stop13h 42m

London Heathrow

Fri 22/8

09:30-23:42

2 stops20h 12m

£494

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 21/4

18:38-13:10

1 stop12h 32m

London Heathrow

Mon 28/4

11:20-21:12

1 stop15h 52m

£508

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 21/4

20:27-14:25

1 stop11h 58m

London Heathrow

Tue 6/5

09:25-13:40

Nonstop10h 15m

£525

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 27/4

15:35-15:40

1 stop18h 05m

London Heathrow

Mon 5/5

13:30-13:35

1 stop30h 05m

£539

Flights are sorted by cheapest return flights first.

Deals found on 11/4

Showing 1-10 of 29 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 4 April 2025.

The best time to book flights from Houston George Bush Intcntl Airport to London Heathrow Airport is 69 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 12 April 2025.

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

Weekly flight availability from Houston George Bush Intcntl Airport to London Heathrow Airport

Explore weekly flight availability from George Bush Intcntl to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 12 April 2025.

The most flights from IAH to LHR are scheduled on a Monday (22 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 12 April 2025.
Read through reviews of airlines operating flights from Houston to London, such as Delta, KLM and Austrian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,912 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,912 reviews
Delta
8.0
Very Good
7,912 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very Good
7,912 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
774 reviews
Delta
8.0
Very Good
7,912 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,428 reviews
Delta
8.0
Very Good
7,912 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,644 reviews
Delta
8.0
Very Good
7,912 reviews
Check prices

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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 United Airlines. Our recent data shows that you can find tickets from as low as £475 on this airline. Additional options worth looking into are Iberia and Air Canada, starting at £476 and £479 round-trip. These flights start at 25% 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?

    To fly one-way, consider booking your trip with Iberia, which is currently one of the cheapest options available, starting at £259. Lufthansa flights start at £295 while deals on Air Canada start at £296 one-way.

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

    Consider American Airlines (69%), Aer Lingus (69%) or Finnair (69%) 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 £558, our data shows the cheapest flight currently is £282. When looking at the most popular route, (Houston George Bush Intcntl - London Heathrow), you can expect to pay £454 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 Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Hounslow
Deal
Milton Keynes
Luton
Gatwick
Croydon
Slough
Eastbourne
Northampton
Wembley
Crawley
Hayes
Swindon
Southend-on-Sea
Maidstone
Ilford
Winchester
Ipswich
Southall
Folkestone

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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.
Hobby to Heathrow flights
Hobby to Gatwick flights
George Bush Intcntl to Gatwick flights
George Bush Intcntl to Stansted flights
George Bush Intcntl to Luton flights

Top 4 airlines flying from George Bush Intcntl to Heathrow

Discover the top 4 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 12 April 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£432Average£554FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£445Average£521FlexibilityNo cancel feeOn-time77%
Search Iberia flights
LufthansaCheapest£477Average£761FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£483Average£748FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from George Bush Intcntl to Heathrow?

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Why should you use Cheapflights to find cheap flight tickets from George Bush Intcntl to Heathrow?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from George Bush Intcntl to Heathrow.

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?

Not ready to book yet? You can track prices for flights from George Bush Intcntl to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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