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Cheap flights from London Heathrow Airport to Houston from $349

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Houston departing on 9/5. 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 London Heathrow Airport to Houston

Cheap round-trip flights

Logo
3:05 pm - 11:42 amLHR-IAH
26h 37m2 stops
Logo
1:35 pm - 12:50 pmIAH-LHR
17h 15m1 stop
$615
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Fri, Sep 5 - Wed, Nov 26
Logo
8:00 am - 11:42 amLHR-IAH
33h 42m2 stops
Logo
2:27 pm - 10:00 pmIAH-LHR
25h 33m2 stops
$627
Find Deal
Wed, Sep 17 - Wed, Sep 24
Logo
1:45 pm - 11:42 amLHR-IAH
27h 57m2 stops
Logo
12:58 pm - 10:55 pmIAH-LHR
27h 57m3 stops
$651
Find Deal
Wed, Sep 17 - Wed, Sep 24
Logo
6:45 pm - 10:35 pmLHR-IAH
33h 50m2 stops
Logo
12:58 pm - 6:50 pmIAH-LHR
23h 52m2 stops
$653
Find Deal
Mon, Sep 1 - Mon, Sep 15
Logo
10:20 am - 5:00 amLHR-IAH
24h 40m2 stops
Logo
8:00 am - 6:30 pmIAH-LHR
28h 30m2 stops
$656
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Wed, Aug 27 - Wed, Sep 3
JetBlue Logo
8:25 am - 1:40 pmLHR-IAH
35h 15m1 stop
JetBlue Logo
2:35 pm - 6:30 amIAH-LHR
33h 55m1 stop
$690JetBlue
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Wed, Sep 17 - Tue, Sep 23
Icelandair Logo
8:25 am - 1:40 pmLHR-IAH
35h 15m1 stop
Icelandair Logo
2:39 pm - 6:30 amIAH-LHR
33h 51m1 stop
$696Icelandair
Find Deal
Mon, Sep 8 - Mon, Oct 6
JetBlue Logo
8:25 am - 1:41 pmLHR-IAH
35h 16m1 stop
JetBlue Logo
2:35 pm - 6:30 amIAH-LHR
33h 55m1 stop
$701JetBlue
Find Deal
Tue, Sep 2 - Tue, Sep 16
JetBlue Logo
8:25 am - 11:35 amLHR-IAH
33h 10m1 stop
JetBlue Logo
2:35 pm - 6:30 amIAH-LHR
33h 55m1 stop
$710JetBlue
Find Deal
Mon, Sep 1 - Mon, Sep 15
Icelandair Logo
8:25 am - 1:41 pmLHR-IAH
35h 16m1 stop
Icelandair Logo
2:35 pm - 6:30 amIAH-LHR
33h 55m1 stop
$736Icelandair
Find Deal
Thu, Sep 4 - Sun, Sep 14

United Airlines flights from London Heathrow Airport to Houston George Bush Intcntl Airport

Our best United Airlines deals on London Heathrow Airport to Houston George Bush Intcntl Airport flight tickets
United Airlines
Aug 6
LHR9:30 amLondon Heathrow
14h 20m
1 stop
IAH5:50 pmHouston George Bush Intcntl
Sep 10
IAH11:00 amHouston George Bush Intcntl
12h 55m
1 stop
LHR5:55 amLondon Heathrow
$957
Find similar
United Airlines
Aug 7
LHR1:40 pmLondon Heathrow
10h 15m
IAH5:55 pmHouston George Bush Intcntl
Sep 11
IAH2:46 pmHouston George Bush Intcntl
12h 34m
1 stop
LHR9:20 amLondon Heathrow
$987
Find similar
United Airlines
Aug 11
LHR4:40 pmLondon Heathrow
14h 05m
1 stop
IAH12:45 amHouston George Bush Intcntl
Sep 11
IAH8:15 pmHouston George Bush Intcntl
9h 20m
LHR11:35 amLondon Heathrow
$992
Find similar

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

Our best JetBlue deals on London Heathrow Airport to Houston George Bush Intcntl Airport flight tickets
JetBlue
Sep 17
LHR8:25 amLondon Heathrow
35h 15m
1 stop
IAH1:40 pmHouston George Bush Intcntl
Sep 23
IAH2:35 pmHouston George Bush Intcntl
33h 55m
1 stop
LHR6:30 amLondon Heathrow
$690
Find similar
JetBlue
Sep 2
LHR8:25 amLondon Heathrow
35h 16m
1 stop
IAH1:41 pmHouston George Bush Intcntl
Sep 16
IAH2:35 pmHouston George Bush Intcntl
33h 55m
1 stop
LHR6:30 amLondon Heathrow
$701
Find similar
JetBlue
Sep 1
LHR8:25 amLondon Heathrow
33h 10m
1 stop
IAH11:35 amHouston George Bush Intcntl
Sep 15
IAH2:35 pmHouston George Bush Intcntl
33h 55m
1 stop
LHR6:30 amLondon Heathrow
$710
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport to Houston George Bush Intcntl 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 832,500 searches. Data last updated July 30, 2025.
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

Fly to

Route

Depart

Return

Price

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Fri 9/5

3:05 pm-11:42 am

2 stops26h 37m

Houston George Bush Intcntl

Wed 11/26

1:35 pm-12:50 pm

1 stop17h 15m

$615

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 9/17

8:00 am-11:42 am

2 stops33h 42m

Houston George Bush Intcntl

Wed 9/24

2:27 pm-10:00 pm

2 stops25h 33m

$627

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 9/17

1:45 pm-11:42 am

2 stops27h 57m

Houston George Bush Intcntl

Wed 9/24

12:58 pm-10:55 pm

3 stops27h 57m

$651

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Mon 9/1

6:45 pm-10:35 pm

2 stops33h 50m

Houston George Bush Intcntl

Mon 9/15

12:58 pm-6:50 pm

2 stops23h 52m

$653

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 8/27

10:20 am-5:00 am

2 stops24h 40m

Houston George Bush Intcntl

Wed 9/3

8:00 am-6:30 pm

2 stops28h 30m

$656

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 9/17

8:25 am-1:40 pm

1 stop35h 15m

Houston George Bush Intcntl

Tue 9/23

2:35 pm-6:30 am

1 stop33h 55m

$690

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Mon 9/8

8:25 am-1:40 pm

1 stop35h 15m

Houston George Bush Intcntl

Mon 10/6

2:39 pm-6:30 am

1 stop33h 51m

$696

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 9/2

8:25 am-1:41 pm

1 stop35h 16m

Houston George Bush Intcntl

Tue 9/16

2:35 pm-6:30 am

1 stop33h 55m

$701

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Mon 9/1

8:25 am-11:35 am

1 stop33h 10m

Houston George Bush Intcntl

Mon 9/15

2:35 pm-6:30 am

1 stop33h 55m

$710

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Thu 9/4

8:25 am-1:41 pm

1 stop35h 16m

Houston George Bush Intcntl

Sun 9/14

2:35 pm-6:30 am

1 stop33h 55m

$736

Flights are sorted by cheapest round-trip flights first.

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

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

The month of February is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from London Heathrow Airport, with most prices found around $786. If you are unable to visit Houston George Bush Intcntl Airport during the month of February, then departing from London Heathrow Airport during the month January is also very affordable. Most momondo users find prices during this month for around $815.

What is the cheapest day to depart on your flight to Houston George Bush Intcntl Airport?

The cheapest day to depart from London Heathrow Airport to Houston George Bush Intcntl Airport is on a Tuesday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Tuesday will often find tickets for as low as $982. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Monday is $1,071.

What is the cheapest time of day to depart on your flight to Houston George Bush Intcntl Airport?

Our data shows that the cheapest London Heathrow Airport to Houston George Bush Intcntl Airport flights are usually those with departure times in the afternoon. Our users have found flights to Houston George Bush Intcntl Airport in the afternoon for as low as $793. Try not to purchase tickets at noon because they tend to be around $1,044. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

How far in advance should I book a flight to Houston George Bush Intcntl Airport?

You are more likely to see cheaper flights to Houston George Bush Intcntl Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston George Bush Intcntl Airport for around $982 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston George Bush Intcntl Airport from London Heathrow Airport for as low as $831 on momondo.

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

There are 4 cabin classes available to choose from on London Heathrow to Houston George Bush Intcntl 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 London Heathrow Airport to Houston George Bush Intcntl Airport flights?

You could potentially save up to 17% on your flight if you consider stops on a London Heathrow Airport to Houston George Bush Intcntl Airport flight.

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

As of July 2025, prices for London Heathrow Airport to Houston George Bush Intcntl Airport flights are approximately 11% more expensive when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$349

Fastest flight time

13h 59m

Direct flights

Every day
The best one-way flight to Houston George Bush Intcntl Airport from London Heathrow Airport in the past 72 hours is $349. The best round-trip flight deal from London Heathrow Airport to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is $615.
The fastest flight from London Heathrow Airport to Houston George Bush Intcntl Airport takes 13h 59m
Direct flights go from London Heathrow Airport to Houston George Bush Intcntl Airport every day.
Search flight deals

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

    A flight from London Heathrow to Houston George Bush Intcntl will travel around 4820.4 mi. By plane, this route typically takes 13h 59m.

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

    Prices for flights from London Heathrow Airport to Houston George Bush Intcntl Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Houston George Bush Intcntl Airport.

  • What documentation or ID do you need to fly to Houston George Bush Intcntl Airport?

    The required travel and health documents for your Houston George Bush Intcntl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Houston George Bush Intcntl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

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

Compare and see reviews for airlines that fly from London Heathrow Airport to Houston George Bush Intcntl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $759Free CancellationRating
7.4
8,896 reviews
Search United Airlines flights
British AirwaysPriceFrom $768Free CancellationRating
6.6
7,217 reviews
Search British Airways flights
LufthansaPriceFrom $830Free CancellationRating
6.8
7,269 reviews
Search Lufthansa flights
IberiaPriceFrom $982Free CancellationRating
7.0
2,859 reviews
Search Iberia flights

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

    United Airlines flies from London Heathrow Airport to Houston George Bush Intcntl Airport around 14 times per week, with 8,896 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from London Heathrow Airport to Houston George Bush Intcntl Airport in the last 72 hours was $759 (round-trip), much lower than the average airfare cost of $1,162 for United Airlines flights on this route.

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

    The best Iberia deal for London Heathrow Airport to Houston George Bush Intcntl Airport flight tickets found on momondo in the last 72 hours was $982, round-trip. It should be noted that an average Iberia flight deal for this route in this time was higher, at $1,442 round-trip. Iberia operates 13 flights out of London Heathrow Airport into Houston George Bush Intcntl Airport in an average week, so prices vary by time and availability. 2,859 Iberia reviews by users on momondo have scored the airline at 7.0/10.

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
The Woodlands
Katy
Conroe
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Cypress
Spring
Montgomery
Tomball
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Why should I use momondo to find a flight deal from London to Houston?

It is quick and easy to find London to Houston flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Houston that suits you.

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

Flights from London to Houston with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Houston.

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

Of course. momondo tracks the price of London to Houston flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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