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Cheap flights from Houston George Bush Intcntl Airport to London from £186

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston George Bush Intcntl Airport to London departing on 17/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
17:25 - 11:50IAH-LHR
36h 25m1 stop
Multiple Airlines Logo
06:50 - 21:39LHR-IAH
20h 49m2 stops
£388Multiple Airlines
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Mon, 1 Dec - Thu, 4 Dec
Virgin Atlantic Logo
12:37 - 09:15IAH-LHR
14h 38m1 stop
Virgin Atlantic Logo
06:30 - 13:30LHR-IAH
13h 00m1 stop
£397Virgin Atlantic
Find Deal
Mon, 20 Oct - Tue, 4 Nov
Air Canada Logo
17:25 - 11:50IAH-LHR
36h 25m1 stop
Air Canada Logo
06:50 - 21:39LHR-IAH
19h 49m2 stops
£409Air Canada
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Sat, 7 Mar - Tue, 10 Mar
Iberia Logo
21:50 - 12:50IAH-LHR
9h 00mdirect
Iberia Logo
09:35 - 14:05LHR-IAH
10h 30mdirect
£412Iberia
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Sun, 30 Nov - Tue, 23 Dec
Air Canada Logo
11:55 - 08:30IAH-LHR
15h 35m1 stop
Air Canada Logo
06:50 - 21:39LHR-IAH
19h 49m2 stops
£414Air Canada
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Mon, 9 Mar - Wed, 11 Mar
Iberia Logo
10:43 - 06:50IAH-LHR
14h 07m1 stop
Iberia Logo
09:35 - 14:05LHR-IAH
10h 30mdirect
£425Iberia
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Sun, 30 Nov - Tue, 23 Dec
British Airways Logo
21:40 - 13:00IAH-LHR
9h 20mdirect
British Airways Logo
09:35 - 14:05LHR-IAH
10h 30mdirect
£452British Airways
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Sun, 19 Oct - Tue, 4 Nov
British Airways Logo
15:30 - 06:40IAH-LHR
9h 10mdirect
British Airways Logo
09:35 - 14:05LHR-IAH
10h 30mdirect
£453British Airways
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Mon, 20 Oct - Tue, 4 Nov
United Airlines Logo
20:05 - 10:15IAH-LHR
9h 10mdirect
United Airlines Logo
06:35 - 16:10LHR-IAH
15h 35m1 stop
£455United Airlines
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Sun, 26 Oct - Thu, 13 Nov
United Airlines Logo
16:50 - 10:50IAH-LHR
13h 00m1 stop
United Airlines Logo
06:35 - 16:10LHR-IAH
15h 35m1 stop
£458United Airlines
Find Deal
Mon, 27 Oct - Fri, 14 Nov

Delta flights from Houston George Bush Intcntl Airport to London Heathrow Airport

Our best Delta deals on Houston George Bush Intcntl Airport to London Heathrow Airport flight tickets
Delta
10 Nov
IAH12:35Houston George Bush Intcntl
13h 15m
1 stop
LHR07:50London Heathrow
4 Dec
LHR06:30London Heathrow
13h 00m
1 stop
IAH13:30Houston George Bush Intcntl
£457
Find similar
Delta
19 Oct
IAH07:05Houston George Bush Intcntl
18h 10m
1 stop
LHR07:15London Heathrow
4 Nov
LHR06:30London Heathrow
13h 00m
1 stop
IAH13:30Houston George Bush Intcntl
£458
Find similar
Delta
19 Nov
IAH11:05Houston George Bush Intcntl
14h 00m
1 stop
LHR07:05London Heathrow
27 Nov
LHR06:30London Heathrow
13h 00m
1 stop
IAH13:30Houston George Bush Intcntl
£461
Find similar

Virgin Atlantic flights from Houston George Bush Intcntl Airport to London Heathrow Airport

Our best Virgin Atlantic deals on Houston George Bush Intcntl Airport to London Heathrow Airport flight tickets
Virgin Atlantic
20 Oct
IAH12:37Houston George Bush Intcntl
14h 38m
1 stop
LHR09:15London Heathrow
4 Nov
LHR06:30London Heathrow
13h 00m
1 stop
IAH13:30Houston George Bush Intcntl
£397
Find similar
Virgin Atlantic
19 Oct
IAH17:39Houston George Bush Intcntl
13h 31m
1 stop
LHR13:10London Heathrow
4 Nov
LHR06:30London Heathrow
13h 00m
1 stop
IAH13:30Houston George Bush Intcntl
£404
Find similar
Virgin Atlantic
19 Oct
IAH15:50Houston George Bush Intcntl
12h 40m
1 stop
LHR10:30London Heathrow
4 Nov
LHR06:30London Heathrow
13h 00m
1 stop
IAH13:30Houston George Bush Intcntl
£435
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momondo Fare Finder

 
Customise your flight search to find flights from Houston George Bush Intcntl Airport to London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 7 October 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

Fly to

Route

Depart

Return

Price

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 1/12

17:25-11:50

1 stop36h 25m

London Heathrow

Thu 4/12

06:50-21:39

2 stops20h 49m

£388

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 20/10

12:37-09:15

1 stop14h 38m

London Heathrow

Tue 4/11

06:30-13:30

1 stop13h 00m

£397

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sat 7/3

17:25-11:50

1 stop36h 25m

London Heathrow

Tue 10/3

06:50-21:39

2 stops19h 49m

£409

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 30/11

21:50-12:50

Nonstop9h 00m

London Heathrow

Tue 23/12

09:35-14:05

Nonstop10h 30m

£412

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 9/3

11:55-08:30

1 stop15h 35m

London Heathrow

Wed 11/3

06:50-21:39

2 stops19h 49m

£414

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 30/11

10:43-06:50

1 stop14h 07m

London Heathrow

Tue 23/12

09:35-14:05

Nonstop10h 30m

£425

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 19/10

21:40-13:00

Nonstop9h 20m

London Heathrow

Tue 4/11

09:35-14:05

Nonstop10h 30m

£452

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 20/10

15:30-06:40

Nonstop9h 10m

London Heathrow

Tue 4/11

09:35-14:05

Nonstop10h 30m

£453

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 26/10

20:05-10:15

Nonstop9h 10m

London Heathrow

Thu 13/11

06:35-16:10

1 stop15h 35m

£455

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 27/10

16:50-10:50

1 stop13h 00m

London Heathrow

Fri 14/11

06:35-16:10

1 stop15h 35m

£458

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Houston George Bush Intcntl Airport to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London Heathrow Airport?

In general, October is the cheapest month to fly from Houston George Bush Intcntl Airport to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £496. The month of September is another great option to travel to London Heathrow Airport, with average flight prices from Houston George Bush Intcntl Airport averaging around £503.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Houston George Bush Intcntl Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £497. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £858.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from Houston George Bush Intcntl Airport to London Heathrow Airport in the morning for as low as £557. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £649 on average. Flights to London Heathrow Airport from Houston George Bush Intcntl Airport in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Houston George Bush Intcntl to London Heathrow flight route?

Fly from Houston George Bush Intcntl to London Heathrow for the best Houston George Bush Intcntl - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Houston George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £602 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Houston George Bush Intcntl Airport for as low as £520 on momondo.

What cabin class options are available on Houston George Bush Intcntl to London Heathrow flights?

There are 4 cabin classes available to choose from on Houston George Bush Intcntl to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Houston George Bush Intcntl Airport to London Heathrow Airport flights?

No. A direct flight is the cheapest option for a flight between Houston George Bush Intcntl Airport to London Heathrow Airport.

How have Houston George Bush Intcntl Airport to London Heathrow Airport flight prices changed over time?

As of October 2025, prices for Houston George Bush Intcntl Airport to London Heathrow Airport flights are approximately 16% cheaper when compared to flights at the same time last year.

When to book flights from Houston George Bush Intcntl Airport to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Houston George Bush Intcntl Airport to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Houston George Bush Intcntl Airport to London Heathrow Airport (IAH to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to London Heathrow Airport

Best price found

£292

Fastest flight time

9h 00m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Houston George Bush Intcntl Airport in the past 72 hours is £292. The best return flight deal from Houston George Bush Intcntl Airport to London Heathrow Airport found on momondo in the last 72 hours is £468.
The fastest flight from Houston George Bush Intcntl Airport to London Heathrow Airport takes 9h 00m
Direct flights go from Houston George Bush Intcntl Airport to London Heathrow Airport every day.
Search flight deals

  • How far is Houston George Bush Intcntl to London Heathrow by plane?

    A flight from Houston George Bush Intcntl to London Heathrow will travel around 4820.4 mi. A reasonable flight in good conditions will take 9h 00m.

  • When did momondo last update prices for flights from Houston George Bush Intcntl Airport to London Heathrow Airport?

    Prices for flights from Houston George Bush Intcntl Airport to London Heathrow Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Houston George Bush Intcntl Airport to London Heathrow Airport?

  • How old do you have to be to fly from Houston George Bush Intcntl Airport to London Heathrow Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston George Bush Intcntl Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Houston George Bush Intcntl Airport to London Heathrow Airport?

  • What is the most popular airline from Houston George Bush Intcntl Airport to London Heathrow Airport?

Best airlines flying from Houston George Bush Intcntl Airport to London Heathrow Airport

Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom £301Free CancellationRating
7.4
665 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom £388Free CancellationRating
7.4
8,955 reviews
Search United Airlines flights
IberiaPriceFrom £426Free CancellationRating
7.0
2,973 reviews
Search Iberia flights
LufthansaPriceFrom £430Free CancellationRating
6.8
7,455 reviews
Search Lufthansa flights
British AirwaysPriceFrom £447Free CancellationRating
6.7
7,430 reviews
Search British Airways flights

  • United Airlines Flights From Houston George Bush Intcntl Airport to London Heathrow Airport

    United Airlines operates around 14 flights from Houston George Bush Intcntl Airport to London Heathrow Airport every week. The average price of these flights found in the last 72 hours has been £948, but momondo users have found United Airlines deals from Houston George Bush Intcntl Airport to London Heathrow Airport from as low as £522 round-trip. United Airlines has been scored 7.4/10 in 8,955 reviews.

  • Iberia Flights From Houston George Bush Intcntl Airport to London Heathrow Airport

    Across 2,973 Iberia reviews on momondo, the average score is 7.0/10. Iberia flies from Houston George Bush Intcntl Airport to London Heathrow Airport about 6 times each week, with ticket deals ranging from £573 to £692. Price data is based on momondo searches in the last 72 hours.

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Why use momondo?

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Can I find flights from Houston to London with flexible booking policies on momondo?

All flight searches from Houston to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Houston to London?

Once all potential Houston to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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Price alerts on flights to London from Houston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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