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Cheap flights from Houston George Bush Intcntl Airport to London Heathrow Airport from £351

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LHR
8 Jun — 15 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Houston George Bush Intcntl to London Heathrow are usually found in October or November, booked 70 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from George Bush Intcntl to Heathrow

Enter your travel dates to find the best prices.

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 9 May 2026.

Tue 25/810:00
IAH
-
LHR
1 stop18h 00m
United Airlines
Tue 8/907:25
LHR
-
IAH
1 stop15h 15m
United Airlines
Deal found 4/5£634
Mon 28/913:58
IAH
-
LHR
1 stop12h 22m
United Airlines
Thu 8/1007:25
LHR
-
IAH
1 stop15h 15m
United Airlines
Deal found 4/5£635
Sun 19/717:40
IAH
-
LHR
1 stop13h 25m
KLM
Wed 30/906:30
LHR
-
IAH
1 stop12h 45m
KLM
Deal found 5/5£636
Sat 3/1015:35
IAH
-
LHR
1 stop23h 05m
Lufthansa
Mon 5/1019:30
LHR
-
IAH
2 stops27h 53m
Lufthansa
Deal found 5/5£637
Tue 18/810:00
IAH
-
LHR
1 stop14h 30m
Air Canada
Thu 3/908:45
LHR
-
IAH
2 stops16h 53m
Air Canada
Deal found 4/5£637
Mon 20/710:00
IAH
-
LHR
1 stop18h 00m
Air Canada
Wed 30/908:40
LHR
-
IAH
2 stops17h 12m
Air Canada
Deal found 5/5£638
Wed 12/814:37
IAH
-
LHR
2 stops14h 03m
Virgin Atlantic
Thu 20/806:30
LHR
-
IAH
1 stop12h 50m
Virgin Atlantic
Deal found 4/5£639
Tue 4/810:21
IAH
-
LHR
2 stops15h 34m
Delta
Tue 25/806:30
LHR
-
IAH
1 stop12h 50m
Delta
Deal found 6/5£640
Mon 20/720:15
IAH
-
LHR
Nonstop9h 20m
United Airlines
Fri 2/1007:30
LHR
-
IAH
1 stop16h 20m
United Airlines
Deal found 5/5£640
Wed 26/810:00
IAH
-
LHR
1 stop18h 00m
Air Canada
Tue 1/906:50
LHR
-
IAH
2 stops17h 37m
Air Canada
Deal found 6/5£641
Wed 19/806:45
IAH
-
LHR
2 stops19h 50m
Air Canada
Thu 3/908:45
LHR
-
IAH
2 stops16h 53m
Air Canada
Deal found 5/5£642
Tue 8/911:50
IAH
-
LHR
1 stop12h 35m
Delta
Tue 6/1009:55
LHR
-
IAH
2 stops20h 03m
Delta
Deal found 6/5£642

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 9 May 2026.

Round-trip from

£634

One-way from

£351

Popular in

June

Cheapest in

October

Average price

£699

Good round-trip deal

£653 or less

Good one-way deal

£380 or less
United Airlines
  • United Airlines
  • 25/8-8/9
  • 2 total stops
  • 33h 15m total
  • Houston to London
Search Deals
10/7
  • 10/7
  • 3 total stops
  • 57h 00m total
  • Houston to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£120 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
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

 
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 9 May 2026.
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

Cheapest return flight
Fastest return journey

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 26/8

20:15-11:35

Nonstop9h 20m

London Heathrow

Wed 2/9

13:40-18:00

Nonstop10h 20m

£653

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 4/8

12:12-06:25

1 stop12h 13m

London Heathrow

Wed 12/8

06:30-13:20

1 stop12h 50m

£658

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 19/5

20:05-11:35

Nonstop9h 30m

London Heathrow

Wed 27/5

10:00-14:20

Nonstop10h 20m

£697

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Thu 20/8

10:00-10:00

1 stop18h 00m

London Heathrow

Sat 5/9

06:55-16:30

1 stop15h 35m

£708

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 2/8

14:38-13:15

1 stop16h 37m

London Heathrow

Sat 15/8

11:30-23:52

2 stops18h 22m

£714

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 20/7

16:25-07:45

Nonstop9h 20m

London Heathrow

Wed 29/7

07:25-16:30

1 stop15h 05m

£810

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 22/7

09:41-06:25

1 stop14h 44m

London Heathrow

Wed 5/8

06:30-13:20

1 stop12h 50m

£813

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 13/9

13:15-18:30

2 stops23h 15m

London Heathrow

Thu 24/9

07:05-21:03

3 stops19h 58m

£862

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 27/5

10:00-10:00

1 stop18h 00m

London Heathrow

Thu 4/6

07:25-16:30

1 stop15h 05m

£870

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 31/5

11:34-09:00

2 stops15h 26m

London Heathrow

Tue 16/6

06:30-13:20

1 stop12h 50m

£878

Flights are sorted by cheapest return flights first.

Deals found on 4/5

Showing 1-10 of 22 resultsSorted by cheapest first
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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?

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, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport (average of £482). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in June is currently the most expensive (average of £898). 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 9 May 2026.

When flying from Houston George Bush Intcntl Airport to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Houston George Bush Intcntl Airport to London Heathrow Airport?

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 9 May 2026.
See what other customers who have flown with United Airlines,Virgin Atlantic, 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.
United Airlines
7.4
Good
9,696 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,696 reviews
United Airlines
7.4
Good
9,696 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
Virgin Atlantic
7.4
Good
688 reviews
United Airlines
7.4
Good
9,696 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
Lufthansa
6.8
Okay
7,984 reviews
United Airlines
7.4
Good
9,696 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
British Airways
6.7
Okay
7,956 reviews
United Airlines
7.4
Good
9,696 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 £653, United Airlines can have you in London Heathrow Airport from Houston George Bush Intcntl Airport in 9h 20m. 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 £297 on this airline. Additional options worth looking into are Lufthansa and United Airlines, starting at £381 and £384 round-trip. These flights start at 52% 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 British Airways, which is currently one of the cheapest options available, starting at £279. United Airlines flights start at £289 while deals on Lufthansa start at £297 one-way.

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

    Consider United Airlines (76%), American Airlines (65%) or Aer Lingus (65%) 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 £839, our data shows the cheapest flight currently is £328. When looking at the most popular route, (Houston George Bush Intcntl - London Heathrow), you can expect to pay £584 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, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport (average of £482). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in June is currently the most expensive (average of £898). 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
Hounslow
Croydon
Wembley
Northampton
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

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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 9 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£297Average£494FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£381Average£481FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£384Average£673FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£437Average£645FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights makes it easy to find George Bush Intcntl to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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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