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Cheap flights from Houston George Bush Intcntl Airport to London from $276

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 10/1. 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

Iberia Logo
3:30 pm - 6:40 amIAH-LHR
9h 10mnonstop
Iberia Logo
9:25 am - 1:45 pmLHR-IAH
10h 20mnonstop
$567Iberia
Find Deal
Wed, Oct 1 - Fri, Oct 10
Iberia Logo
12:05 pm - 6:25 amIAH-LHR
12h 20m1 stop
Iberia Logo
2:50 pm - 7:15 pmLHR-IAH
10h 25mnonstop
$571Iberia
Find Deal
Wed, Aug 27 - Wed, Sep 3
British Airways Logo
3:55 pm - 6:55 amIAH-LHR
9h 00mnonstop
British Airways Logo
7:20 am - 9:30 pmLHR-IAH
20h 10m2 stops
$578British Airways
Find Deal
Wed, Nov 12 - Wed, Nov 19
British Airways Logo
9:00 pm - 12:20 pmIAH-LHR
9h 20mnonstop
British Airways Logo
9:25 am - 1:40 pmLHR-IAH
10h 15mnonstop
$582British Airways
Find Deal
Wed, Aug 13 - Fri, Sep 12
United Airlines Logo
7:05 pm - 10:15 amIAH-LHR
9h 10mnonstop
United Airlines Logo
7:40 am - 4:10 pmLHR-IAH
14h 30m1 stop
$625United Airlines
Find Deal
Sun, Nov 9 - Fri, Nov 28
United Airlines Logo
4:20 pm - 7:30 amIAH-LHR
9h 10mnonstop
United Airlines Logo
9:30 am - 6:15 pmLHR-IAH
14h 45m1 stop
$628United Airlines
Find Deal
Sun, Nov 9 - Tue, Nov 25
Lufthansa Logo
3:35 pm - 5:40 pmIAH-LHR
20h 05m1 stop
Lufthansa Logo
6:30 am - 5:16 pmLHR-IAH
16h 46m2 stops
$662Lufthansa
Find Deal
Mon, Sep 29 - Tue, Oct 7
American Airlines Logo
9:00 pm - 12:20 pmIAH-LHR
9h 20mnonstop
American Airlines Logo
2:50 pm - 7:15 pmLHR-IAH
10h 25mnonstop
$690American Airlines
Find Deal
Thu, Jul 31 - Mon, Sep 15
Lufthansa Logo
6:50 pm - 5:40 pmIAH-LHR
16h 50m2 stops
Lufthansa Logo
6:30 am - 5:23 pmLHR-IAH
16h 53m2 stops
$717Lufthansa
Find Deal
Sat, Sep 20 - Wed, Oct 1
American Airlines Logo
3:55 pm - 6:55 amIAH-LHR
9h 00mnonstop
American Airlines Logo
9:30 am - 2:10 pmLHR-IAH
10h 40mnonstop
$734American Airlines
Find Deal
Wed, Nov 12 - Sat, Nov 15

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

Our best Finnair deals on Houston George Bush Intcntl Airport to London Heathrow Airport flight tickets
Finnair
Aug 26
IAH2:32 pmHouston George Bush Intcntl
17h 53m
1 stop
LHR2:25 pmLondon Heathrow
Sep 3
LHR10:20 amLondon Heathrow
19h 19m
2 stops
IAH11:39 pmHouston George Bush Intcntl
Finnair
Sep 15
IAH9:00 pmHouston George Bush Intcntl
9h 20m
LHR12:20 pmLondon Heathrow
Sep 22
LHR6:10 pmLondon Heathrow
29h 33m
2 stops
IAH5:43 pmHouston George Bush Intcntl
Finnair
Oct 3
IAH3:30 pmHouston George Bush Intcntl
9h 10m
LHR6:40 amLondon Heathrow
Oct 7
LHR6:10 pmLondon Heathrow
29h 31m
2 stops
IAH5:41 pmHouston George Bush Intcntl

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
Sep 30
IAH9:40 amHouston George Bush Intcntl
21h 50m
1 stop
LHR1:30 pmLondon Heathrow
Oct 10
LHR6:30 amLondon Heathrow
17h 44m
2 stops
IAH6:14 pmHouston George Bush Intcntl
Delta
Oct 1
IAH12:55 pmHouston George Bush Intcntl
16h 30m
1 stop
LHR11:25 amLondon Heathrow
Oct 7
LHR6:15 amLondon Heathrow
13h 20m
1 stop
IAH1:35 pmHouston George Bush Intcntl
Delta
Sep 20
IAH12:55 pmHouston George Bush Intcntl
25h 05m
1 stop
LHR8:00 pmLondon Heathrow
Sep 30
LHR9:20 amLondon Heathrow
20h 36m
1 stop
IAH11:56 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 April is, on average, the cheapest month to fly to London Heathrow Airport from Houston George Bush Intcntl Airport, with most prices found around $681. If you’re not able to fly to London Heathrow Airport in April, then October is your next best option. Flight prices from Houston George Bush Intcntl Airport to London Heathrow Airport during October average around $681.

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 $999.

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 15 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $824 when searching 15 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 $732 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 May 2025, prices for Houston George Bush Intcntl Airport to London Heathrow Airport flights are approximately 15% 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

$276

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 $276. 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 $567.
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.

  • 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 00m 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
9,382 reviews
Search Air Canada flights
Virgin AtlanticPriceFrom $576Free CancellationRating
7.4
644 reviews
Search Virgin Atlantic flights
IberiaPriceFrom $578Free CancellationRating
7.0
2,739 reviews
Search Iberia flights
FinnairPriceFrom $582Free CancellationRating
7.6
1,282 reviews
Search Finnair flights
British AirwaysPriceFrom $608Free CancellationRating
6.6
6,912 reviews
Search British Airways flights
American AirlinesPriceFrom $610Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
LufthansaPriceFrom $611Free CancellationRating
6.7
7,077 reviews
Search Lufthansa flights
United AirlinesPriceFrom $611Free CancellationRating
7.4
8,744 reviews
Search United Airlines flights
DeltaPriceFrom $631Free CancellationRating
8.0
7,950 reviews
Search Delta flights
Austrian AirlinesPriceFrom $957Free CancellationRating
7.6
792 reviews
Search Austrian 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 13 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 $734. Our users have rated Finnair at 7.6/10.

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

    Across 792 Austrian Airlines reviews on momondo, the average score is 7.6/10. Austrian Airlines flies from Houston George Bush Intcntl Airport to London Heathrow Airport about 6 times each week, with ticket deals ranging from $957 to $1,374. 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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