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Cheap flights from Houston George Bush Intcntl Airport to London Heathrow Airport from $303

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 Heathrow Airport departing on 4/29. 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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Find the cheapest flights from Houston George Bush Intcntl Airport to London

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Houston George Bush Intcntl Airport to London.
British Airways Logo
12:51 pm - 6:40 amIAH-LHR
11h 49m1 stop
British Airways Logo
9:20 am - 1:35 pmLHR-IAH
10h 15mnonstop
$352British Airways
Find Deal
Thu, May 8 - Sat, May 17
Iberia Logo
9:00 pm - 12:20 pmIAH-LHR
9h 20mnonstop
Iberia Logo
2:50 pm - 7:15 pmLHR-IAH
10h 25mnonstop
$566Iberia
Find Deal
Wed, Aug 6 - Wed, Aug 20
Iberia Logo
4:33 pm - 12:15 pmIAH-LHR
13h 42m1 stop
Iberia Logo
2:50 pm - 7:15 pmLHR-IAH
10h 25mnonstop
$570Iberia
Find Deal
Wed, Aug 6 - Wed, Aug 20
Iberia Logo
3:25 pm - 6:40 amIAH-LHR
9h 15mnonstop
Iberia Logo
9:25 am - 1:40 pmLHR-IAH
10h 15mnonstop
$572Iberia
Find Deal
Wed, May 7 - Thu, May 15
Finnair Logo
12:02 pm - 12:45 pmIAH-LHR
18h 43m1 stop
Finnair Logo
4:10 pm - 10:44 pmLHR-IAH
36h 34m2 stops
$597Finnair
Find Deal
Mon, Apr 28 - Tue, May 6
United Airlines Logo
8:10 pm - 11:35 amIAH-LHR
9h 25mnonstop
United Airlines Logo
7:25 am - 4:35 pmLHR-IAH
15h 10m1 stop
$606United Airlines
Find Deal
Sun, May 4 - Fri, May 16
United Airlines Logo
8:20 am - 9:40 amIAH-LHR
19h 20m1 stop
United Airlines Logo
7:25 am - 4:35 pmLHR-IAH
15h 10m1 stop
$611United Airlines
Find Deal
Wed, Apr 23 - Wed, Apr 30
Finnair Logo
3:25 pm - 6:40 amIAH-LHR
9h 15mnonstop
Finnair Logo
4:10 pm - 6:47 pmLHR-IAH
32h 37m2 stops
$642Finnair
Find Deal
Wed, May 7 - Sat, May 17
British Airways Logo
3:25 pm - 6:40 amIAH-LHR
9h 15mnonstop
British Airways Logo
2:50 pm - 7:15 pmLHR-IAH
10h 25mnonstop
$649British Airways
Find Deal
Mon, May 5 - Wed, May 14
Lufthansa Logo
6:40 pm - 8:40 pmIAH-LHR
20h 00m2 stops
Lufthansa Logo
9:00 am - 10:58 pmLHR-IAH
19h 58m2 stops
$695Lufthansa
Find Deal
Tue, Apr 22 - Tue, Apr 29

British Airways flights from Houston George Bush Intcntl Airport to London Heathrow Airport

Our best British Airways deals on Houston George Bush Intcntl Airport to London Heathrow Airport flight tickets
British Airways
May 8
IAH12:51 pmHouston George Bush Intcntl
11h 49m
1 stop
LHR6:40 amLondon Heathrow
May 17
LHR9:20 amLondon Heathrow
10h 15m
IAH1:35 pmHouston George Bush Intcntl
British Airways
May 5
IAH3:25 pmHouston George Bush Intcntl
9h 15m
LHR6:40 amLondon Heathrow
May 14
LHR2:50 pmLondon Heathrow
10h 25m
IAH7:15 pmHouston George Bush Intcntl
British Airways
Sep 25
IAH1:39 pmHouston George Bush Intcntl
12h 26m
1 stop
LHR8:05 amLondon Heathrow
Oct 14
LHR3:30 pmLondon Heathrow
13h 52m
1 stop
IAH11:22 pmHouston George Bush Intcntl

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

Our best Iberia deals on Houston George Bush Intcntl Airport to London Heathrow Airport flight tickets
Iberia
Aug 6
IAH9:00 pmHouston George Bush Intcntl
9h 20m
LHR12:20 pmLondon Heathrow
Aug 20
LHR2:50 pmLondon Heathrow
10h 25m
IAH7:15 pmHouston George Bush Intcntl
Iberia
Aug 6
IAH4:33 pmHouston George Bush Intcntl
13h 42m
1 stop
LHR12:15 pmLondon Heathrow
Aug 20
LHR2:50 pmLondon Heathrow
10h 25m
IAH7:15 pmHouston George Bush Intcntl
Iberia
May 7
IAH3:25 pmHouston George Bush Intcntl
9h 15m
LHR6:40 amLondon Heathrow
May 15
LHR9:25 amLondon Heathrow
10h 15m
IAH1:40 pmHouston George Bush Intcntl

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?

The month of October is, on average, the cheapest month to fly to London Heathrow Airport from Houston George Bush Intcntl Airport, with most prices found around $679. If you’re not able to fly to London Heathrow Airport in October, then February is your next best option. Flight prices from Houston George Bush Intcntl Airport to London Heathrow Airport during February average around $687.

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

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $781. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $954.

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 at noon. momondo users have found flights departing from Houston George Bush Intcntl Airport to London Heathrow Airport at noon for as low as $886. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $1,037.

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 25 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $843 when searching 25 weeks out.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 $737 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.

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

As of April 2025, prices for Houston George Bush Intcntl Airport to London Heathrow Airport flights are approximately 36% 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 round-trip 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

$303

Fastest flight time

9h 10m

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 $303. The best round-trip flight deal from Houston George Bush Intcntl Airport to London Heathrow Airport found on momondo in the last 72 hours is $352.
The fastest flight from Houston George Bush Intcntl Airport to London Heathrow Airport takes 9h 10m
Direct flights go from Houston George Bush Intcntl Airport to London Heathrow Airport every day.

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

    The distance between Houston George Bush Intcntl and London Heathrow is about 4820.4 mi. 9h 10m is a normal flight duration for this route.

  • 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?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • 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
Air CanadaPriceFrom $568Free CancellationRating
7.0
9,034 reviews
Search Air Canada flights
IberiaPriceFrom $574Free CancellationRating
7.0
2,659 reviews
Search Iberia flights
Virgin AtlanticPriceFrom $578Free CancellationRating
7.4
638 reviews
Search Virgin Atlantic flights
FinnairPriceFrom $582Free CancellationRating
7.6
1,267 reviews
Search Finnair flights
DeltaPriceFrom $596Free CancellationRating
8.0
7,901 reviews
Search Delta flights
British AirwaysPriceFrom $608Free CancellationRating
6.6
6,719 reviews
Search British Airways flights
United AirlinesPriceFrom $611Free CancellationRating
7.4
8,621 reviews
Search United Airlines flights
LufthansaPriceFrom $612Free CancellationRating
6.7
6,970 reviews
Search Lufthansa flights
American AirlinesPriceFrom $635Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Brussels AirlinesPriceFrom $864Free CancellationRating
7.3
345 reviews
Search Brussels Airlines flights
  • Finnair Flights From Houston George Bush Intcntl Airport to London Heathrow Airport

    Finnair is one of the most popular airlines flying from Houston George Bush Intcntl Airport to London Heathrow Airport, operating 10 flights/week on average for this route. A good Finnair flight deal for Houston George Bush Intcntl Airport to London Heathrow Airport starts from $582 round-trip, up to an average price of $735. Our users have rated Finnair at 7.6/10.

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

    Across 771 Austrian Airlines reviews on momondo, the average score is 7.5/10. Austrian Airlines flies from Houston George Bush Intcntl Airport to London Heathrow Airport about 14 times each week, with ticket deals ranging from $957 to $1,379. Price data is based on momondo searches in the last 72 hours.


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Why use momondo?

Why should I use momondo to find a flight deal from Houston to London?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Houston to London. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Houston to London flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Houston and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Houston to London right now. Can momondo alert me if prices change?

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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