Cheap flights from Houston George Bush Intcntl Airport to London Heathrow Airport from £166

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LHR
20 אוג' — 27 אוג'1
1 adult

Cheapflights Tip: The best prices from Houston George Bush Intcntl to London Heathrow are usually found in October or September, booked 89 days in advance, depart on a Sunday or Tuesday 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 15 אוגוסט 2025.

Round-trip from

£384

One-way from

£166

Popular in

June

Cheapest in

October

Average price

£525

Good round-trip deal

£398 or less

Good one-way deal

£290 or less
British Airways
  • British Airways
  • 14/9-24/9
  • 1 total stop
  • 22h 37m total
  • Houston to London
1/10
  • 1/10
  • 2 total stops
  • 25h 33m total
  • Houston to London
Highest demand for flights based on searches. 21% potential increase in price (£122 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (£21 potential savings vs. average return price).
Average for round-trip flights in August 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 15 אוגוסט 2025.

א' 14/912:18IAH - LHR
1 stop12h 22mBritish Airways
ד' 24/909:25LHR - IAH
Nonstop10h 15mBritish Airways
Deal found 14/8£384
ד' 20/807:10IAH - LHR
1 stop20h 15mIberia
ג' 26/811:30LHR - IAH
2 stops38h 36mIberia
Deal found 13/8£385
ד' 10/916:20IAH - LHR
Nonstop9h 20mUnited Airlines
ד' 17/910:00LHR - IAH
Nonstop10h 15mUnited Airlines
Deal found 14/8£386
א' 24/820:15IAH - LHR
Nonstop9h 20mUnited Airlines
ג' 9/910:00LHR - IAH
Nonstop10h 15mUnited Airlines
Deal found 13/8£386
א' 24/816:20IAH - LHR
Nonstop9h 20mAir Canada
ג' 9/913:40LHR - IAH
Nonstop10h 15mAir Canada
Deal found 14/8£388
ד' 3/912:00IAH - LHR
1 stop12h 45mUnited Airlines
ה' 25/909:30LHR - IAH
1 stop16h 12mUnited Airlines
Deal found 13/8£389
ג' 23/918:39IAH - LHR
1 stop11h 36mIberia
ג' 30/909:25LHR - IAH
Nonstop10h 15mIberia
Deal found 14/8£389
ד' 22/1010:00IAH - LHR
1 stop14h 30mAir Canada
ד' 29/1013:25LHR - IAH
2 stops26h 44mAir Canada
Deal found 13/8£390
ש' 27/918:16IAH - LHR
1 stop33h 44mAir Canada
ג' 21/1009:30LHR - IAH
1 stop16h 12mAir Canada
Deal found 12/8£391
ד' 20/810:57IAH - LHR
1 stop16h 28mBritish Airways
ד' 27/813:40LHR - IAH
1 stop16h 43mBritish Airways
Deal found 13/8£392
ג' 30/910:00IAH - LHR
1 stop17h 35mMultiple Airlines
ב' 6/1017:50LHR - IAH
2 stops34h 24mMultiple Airlines
Deal found 14/8£392

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 15 אוגוסט 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

ד' 27/8

17:05-11:45

1 stop12h 40m

London Heathrow

ה' 4/9

13:45-16:35

1 stop32h 50m

£385

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

ג' 2/9

19:50-10:40

1 stop32h 50m

London Heathrow

ו' 12/9

12:05-11:15

1 stop29h 10m

£385

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

ב' 19/1

21:55-09:40

1 stop29h 45m

London Heathrow

ה' 29/1

11:10-11:04

1 stop29h 54m

£385

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

א' 28/9

21:40-13:00

Nonstop9h 20m

London Heathrow

ד' 22/10

14:50-19:15

Nonstop10h 25m

£386

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

ב' 8/12

21:45-12:45

Nonstop9h 00m

London Heathrow

ה' 18/12

15:25-20:00

Nonstop10h 35m

£386

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

ד' 29/10

17:20-07:30

Nonstop9h 10m

London Heathrow

ו' 7/11

10:00-14:45

Nonstop10h 45m

£386

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

ג' 18/11

16:20-07:30

Nonstop9h 10m

London Heathrow

ד' 26/11

12:05-16:50

Nonstop10h 45m

£386

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

ד' 10/12

16:20-07:30

Nonstop9h 10m

London Heathrow

ד' 17/12

10:00-14:45

Nonstop10h 45m

£386

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

ב' 20/10

10:00-09:35

1 stop17h 35m

London Heathrow

ד' 29/10

10:00-15:45

Nonstop10h 45m

£386

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

ב' 1/9

16:20-07:40

Nonstop9h 20m

London Heathrow

ג' 9/9

09:30-19:42

1 stop16h 12m

£386

Flights are sorted by cheapest return flights first.

Deals found on 13/8

Showing 1-10 of 19 results
1
2

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 8 August 2025.

The best time to book flights from Houston George Bush Intcntl Airport to London Heathrow Airport is 89 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 15 אוגוסט 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 9% 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 15 אוגוסט 2025.

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

What’s the top stopover airport for flights from Houston George Bush Intcntl Airport to London Heathrow Airport?

Share of one-stop return flights from Houston George Bush Intcntl Airport to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Boston (BOS) – chosen by Cheapflights users on 71% of one-stop itineraries from Houston George Bush Intcntl Airport to London Heathrow Airport on Cheapflights.

What’s the cheapest stopover airport for flights from Houston George Bush Intcntl Airport to London Heathrow Airport?

Average return fare for one-stop flights from Houston George Bush Intcntl Airport to London Heathrow Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Atlanta (ATL) is the most affordable one-stop option, with an average return flight price of £432.

What’s the fastest stopover option from Houston George Bush Intcntl Airport to London Heathrow Airport?

Shortest average travel time for one-stop one-way flights from Houston George Bush Intcntl Airport to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Atlanta (ATL) have the shortest average one-way travel time for one-stop routes: 11h 15m.

Which airport typically offers the quickest stopover for flights from Houston George Bush Intcntl Airport to London Heathrow Airport?

Average stopover duration for one-stop one-way flights from Houston George Bush Intcntl Airport to London Heathrow Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average stopover time of 1h 15m.

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 15 אוגוסט 2025.
See what other customers who have flown with United Airlines, Iberia, andLufthansa 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.

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.6

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??

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.6

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??

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.6

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??

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.6

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??

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.6

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.
  • 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 £385 on this airline. Additional options worth looking into are British Airways and Iberia, starting at £444 and £448 round-trip. These flights start at 34% 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 (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 £393, our data shows the cheapest flight currently is £276. When looking at the most popular route, (Houston George Bush Intcntl - London Heathrow), you can expect to pay £328 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
Gatwick
Slough
Northampton
Deal
Luton
Wembley
Crawley
Ilford
Hayes
Ipswich
Southend-on-Sea
Winchester
Folkestone
Eastbourne
Maidstone
Watford
Chichester

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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 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 15 אוגוסט 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£385Average£671FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£444Average£717FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£448Average£509FlexibilityNo cancel feeOn-time77%
Search Iberia flights
LufthansaCheapest£450Average£545FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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

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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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