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Cheap flights from London Heathrow Airport to Houston George Bush Intcntl Airport from £391

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 21/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IAH
14 Feb — 21 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Houston George Bush Intcntl are usually found in January or February, booked 88 days in advance, depart on a Wednesday or Thursday and return on a Monday

Cheap flight deals from Heathrow to George Bush Intcntl

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to George Bush Intcntl (IAH). 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 January 2026.

Round-trip from

£526

One-way from

£391

Popular in

July

Cheapest in

January

Average price

£609

Good round-trip deal

£606 or less

Good one-way deal

£567 or less
21/2-1/3
  • 21/2-1/3
  • 2 total stops
  • 37h 26m total
  • London to Houston
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21/5
  • 21/5
  • 3 total stops
  • 38h 46m total
  • London to Houston
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£90 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).
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Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Houston George Bush Intcntl.
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Price to beat on a one-way flight from London Heathrow to Houston George Bush Intcntl.
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Find flight deals from Heathrow to George Bush Intcntl

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to George Bush Intcntl
Explore the most affordable flight options available from Heathrow to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 January 2026.

Sat 21/211:20
LHR
-
IAH
1 stop19h 10m
Multiple Airlines
Sun 1/316:34
IAH
-
LHR
1 stop18h 16m
Multiple Airlines
Deal found 14/1£526
Thu 22/112:15
LHR
-
IAH
3 stops26h 25m
Multiple Airlines
Thu 5/211:38
IAH
-
LHR
2 stops17h 12m
Multiple Airlines
Deal found 14/1£527
Thu 29/116:10
LHR
-
IAH
2 stops30h 23m
Iberia
Mon 2/216:50
IAH
-
LHR
1 stop12h 50m
Iberia
Deal found 14/1£528
Fri 6/312:15
LHR
-
IAH
3 stops28h 56m
Multiple Airlines
Sun 22/307:05
IAH
-
LHR
2 stops22h 45m
Multiple Airlines
Deal found 14/1£529
Sun 15/316:30
LHR
-
IAH
2 stops29h 55m
Iberia
Mon 23/306:31
IAH
-
LHR
1 stop24h 29m
Iberia
Deal found 14/1£530
Sun 1/213:00
LHR
-
IAH
2 stops25h 40m
Multiple Airlines
Sun 15/205:46
IAH
-
LHR
2 stops19h 24m
Multiple Airlines
Deal found 14/1£532
Tue 14/409:55
LHR
-
IAH
2 stops35h 20m
Multiple Airlines
Tue 5/518:38
IAH
-
LHR
1 stop19h 32m
Multiple Airlines
Deal found 12/1£533
Wed 11/220:05
LHR
-
IAH
2 stops34h 25m
Multiple Airlines
Wed 18/221:18
IAH
-
LHR
3 stops32h 32m
Multiple Airlines
Deal found 14/1£534
Tue 10/309:00
LHR
-
IAH
2 stops17h 44m
Air Canada
Wed 25/312:10
IAH
-
LHR
2 stops15h 20m
Air Canada
Deal found 12/1£535
Wed 18/210:25
LHR
-
IAH
1 stop16h 58m
United Airlines
Sat 7/316:20
IAH
-
LHR
Nonstop9h 10m
United Airlines
Deal found 13/1£536
Sat 31/109:20
LHR
-
IAH
1 stop32h 19m
JetBlue
Thu 5/212:24
IAH
-
LHR
1 stop12h 31m
JetBlue
Deal found 14/1£536
Sat 14/210:45
LHR
-
IAH
1 stop14h 49m
Multiple Airlines
Tue 24/207:21
IAH
-
LHR
2 stops17h 04m
Multiple Airlines
Deal found 14/1£537

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to George Bush Intcntl 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 January 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Houston George Bush Intcntl Airport that are best for you.

Fly from

Heathrow

Fly to

George Bush Intcntl

Route

Depart

Return

Price

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Mon 9/2

06:30-18:15

1 stop17h 45m

Houston George Bush Intcntl

Mon 16/2

19:05-10:15

Nonstop9h 10m

£577

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Sun 1/2

20:05-20:31

2 stops30h 26m

Houston George Bush Intcntl

Sun 15/2

12:11-11:15

2 stops17h 04m

£579

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Fri 13/3

14:10-23:53

1 stop14h 43m

Houston George Bush Intcntl

Sat 21/3

22:50-12:50

Nonstop9h 00m

£588

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 28/4

14:45-19:15

Nonstop10h 30m

Houston George Bush Intcntl

Tue 12/5

21:05-12:25

Nonstop9h 20m

£594

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Sat 24/1

10:00-14:45

Nonstop10h 45m

Houston George Bush Intcntl

Mon 26/1

19:05-10:15

Nonstop9h 10m

£600

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Thu 29/1

12:05-16:50

Nonstop10h 45m

Houston George Bush Intcntl

Mon 2/2

19:05-10:15

Nonstop9h 10m

£603

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Fri 6/2

12:05-16:50

Nonstop10h 45m

Houston George Bush Intcntl

Mon 9/2

16:20-07:30

Nonstop9h 10m

£603

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 10/2

09:35-14:05

Nonstop10h 30m

Houston George Bush Intcntl

Mon 16/2

17:15-12:05

1 stop12h 50m

£611

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Fri 1/5

06:30-18:30

2 stops18h 00m

Houston George Bush Intcntl

Fri 15/5

12:55-08:50

1 stop13h 55m

£623

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Fri 13/2

11:05-22:32

2 stops17h 27m

Houston George Bush Intcntl

Fri 20/2

12:42-08:45

2 stops14h 03m

£624

Flights are sorted by cheapest return flights first.

Deals found on 12/1

Showing 1-10 of 21 results
1
2
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Best time to book a flight from Heathrow to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Heathrow 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 London Heathrow Airport to Houston George Bush Intcntl Airport

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

Use this chart to determine the optimal time to book a return flight from Heathrow to George Bush Intcntl. Price data was last updated on 9 January 2026.

The price you pay for your flight from London Heathrow Airport to Houston George Bush Intcntl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London Heathrow Airport to Houston George Bush Intcntl Airport?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Houston George Bush Intcntl Airport (average of £419). Flying from London Heathrow Airport to Houston George Bush Intcntl Airport in July is currently the most expensive (average of £672). 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 LHR to IAH?

Find hourly flight availability from Heathrow to George Bush Intcntl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 January 2026.

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

Reviews of airlines servicing George Bush Intcntl

Get insights into the airlines that provide service to George Bush Intcntl. 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 George Bush Intcntl. Reviews last updated 15 January 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Houston George Bush Intcntl Airport, such as Finnair, Austrian Airlines, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,349 reviews
Check prices

Entertainment

6.9

Overall

7.6

Comfort

7.4

Crew

8.2

Boarding

7.7

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,349 reviews
Finnair
7.6
Good
1,349 reviews
Check prices

Entertainment

6.9

Overall

7.6

Comfort

7.4

Crew

8.2

Boarding

7.7

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Austrian Airlines
7.5
Good
893 reviews
Finnair
7.6
Good
1,349 reviews
Check prices

Entertainment

6.9

Overall

7.6

Comfort

7.4

Crew

8.2

Boarding

7.7

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
United Airlines
7.4
Good
9,164 reviews
Finnair
7.6
Good
1,349 reviews
Check prices

Entertainment

6.9

Overall

7.6

Comfort

7.4

Crew

8.2

Boarding

7.7

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Lufthansa
6.8
Okay
7,717 reviews
Finnair
7.6
Good
1,349 reviews
Check prices

Entertainment

6.9

Overall

7.6

Comfort

7.4

Crew

8.2

Boarding

7.7

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.7
Okay
7,676 reviews
Finnair
7.6
Good
1,349 reviews
Check prices

Entertainment

6.9

Overall

7.6

Comfort

7.4

Crew

8.2

Boarding

7.7

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to George Bush Intcntl. 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 London Heathrow Airport to Houston George Bush Intcntl Airport?

    For as low as £588, United Airlines can have you in Houston George Bush Intcntl Airport from London Heathrow Airport in 14h 43m. London Heathrow Airport and Houston George Bush Intcntl 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 London Heathrow Airport to Houston George Bush Intcntl Airport round-trip?

    According to our current data, WestJet (£190), Virgin Atlantic (£389), and KLM (£439) offers the cheapest pricing from London Heathrow Airport to Houston George Bush Intcntl Airport. Users have found that WestJet is 74% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from London Heathrow Airport to Houston George Bush Intcntl Airport one-way?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as £256. However, be on the lookout for offers from Finnair and Lufthansa, as they are both options that can get you from London Heathrow Airport to Houston George Bush Intcntl Airport for a low price.

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

    The top 3 most reliable airlines when flying from London Heathrow Airport to Houston George Bush Intcntl Airport are Air Canada (85%), Austrian Airlines (85%) and Brussels Airlines (85%).

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

    Looking for the cheapest flight from London Heathrow Airport to Houston George Bush Intcntl Airport? While on average our users pay £910, our data indicates the cheapest price to be £456. The most popular route (London Heathrow - Houston George Bush Intcntl), is priced around £427.

  • Can I find deals for flights from Heathrow to George Bush Intcntl that include hotel bookings?

    Yes. In addition to deals on Heathrow to George Bush Intcntl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to George Bush Intcntl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to George Bush Intcntl.

  • Can I find deals for business class flights from Heathrow to George Bush Intcntl?

    Yes. Cheapflights offers flight deals from Heathrow to George Bush Intcntl 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 London Heathrow Airport to Houston George Bush Intcntl Airport?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Houston George Bush Intcntl Airport (average of £419). Flying from London Heathrow Airport to Houston George Bush Intcntl Airport in July is currently the most expensive (average of £672). 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

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Fly from Heathrow to George Bush Intcntl on these airlines

Choose from the following airlines for your flight from Heathrow to George Bush Intcntl. Flights are based on user searches made on Cheapflights and were last updated on 15 January 2026.
British Airways flights from London Heathrow to Houston George Bush Intcntl
Lufthansa flights from London Heathrow to Houston George Bush Intcntl
Finnair flights from London Heathrow to Houston George Bush Intcntl

Top 10 airlines flying from Heathrow to George Bush Intcntl

Discover the top 10 airlines that operate flights from Heathrow to George Bush Intcntl. 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 January 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest£190Average£626FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Virgin AtlanticCheapest£389Average£748FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£439Average£793FlexibilityNo cancel feeOn-time75%
Search KLM flights
IcelandairCheapest£487Average£764FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£490Average£657FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£504Average£635FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£506Average£751FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£546Average£719FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapest£552Average£587FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Brussels AirlinesCheapest£572Average£760FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights

Fly with Cheapflights

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

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

Cheapflights helps you find that perfect flight to George Bush Intcntl from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to George Bush Intcntl flexibly with Cheapflights today.

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

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

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