$556 Find Cheap Flights from London to Houston - Compare and Save

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Everything you should know

Cheapest round-trip
$750
Typical prices: $899-$1,386
Multiple Airlines
Sun 11/4Mon 11/12
LHR - IAH • 1 stop
Cheapest non-stop
$874
Typical prices: $918-$1,433
British Airways
Fri 11/2Fri 11/9
LHR - IAH • Non-stop
Advice from real travelers
Lufthansa Premium Economy adds 50% more space and an extra checked bag.
BA Premium Economy offers wider seats; Iberia adds Wi-Fi on long flights.
Expert advice
+1
Expert advice
+1
Nonstop flights
You can fly direct with United Airlines and British Airways. Average duration is 10h 28m
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 11% average savings
Most popular
Insights
Insights
Avoid delays
Most punctual • 91% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 25 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $803 (round-trip)
Shortest trip • 12h 44m (one-way)
Insights
Insights
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We hope you love your trip to Houston!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from London to Houston (LHR-HOU)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from London to Houston

Wed, Oct 7 - Wed, Oct 21
Multiple Airlines Logo
1:40 pm - 9:27 amLHR  London Heathrow-IAH Houston George Bush Intcntl
25h 47m1 stop Orlando
Multiple Airlines Logo
12:21 pm - 12:05 pmIAH  Houston George Bush Intcntl-LHR London Heathrow
17h 44m2 stops Orlando New York John F Kennedy Intl
$756Multiple Airlines
Tue, Sep 29 - Tue, Oct 6
JetBlue Logo
8:40 am - 11:34 amLHR  London Heathrow-IAH Houston George Bush Intcntl
32h 54m1 stop Boston Logan Intl
JetBlue Logo
5:18 pm - 8:45 pmIAH  Houston George Bush Intcntl-LHR London Heathrow
21h 27m1 stop New York John F Kennedy Intl
$760JetBlue
Tue, Sep 29 - Sat, Oct 10
JetBlue Logo
8:15 am - 4:25 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
14h 10m1 stop New York John F Kennedy Intl
JetBlue Logo
7:13 pm - 6:30 amIAH  Houston George Bush Intcntl-LHR London Heathrow
29h 17m1 stop Boston Logan Intl
$760JetBlue
Tue, Nov 10 - Sun, Nov 29
Multiple Airlines Logo
12:15 pm - 8:55 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
38h 40m2 stops Reykjavik Keflavik Intl Orlando
Multiple Airlines Logo
1:50 pm - 12:50 pmIAH  Houston George Bush Intcntl-LHR London Heathrow
17h 00m1 stop Calgary
$762Multiple Airlines
Mon, Nov 2 - Mon, Nov 9
United Airlines Logo
12:00 pm - 8:21 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
14h 21m1 stop Newark
United Airlines Logo
12:45 pm - 9:40 amIAH  Houston George Bush Intcntl-LHR London Heathrow
14h 55m1 stop Denver Intl
$861United Airlines
Mon, Nov 2 - Mon, Nov 9
British Airways Logo
3:25 pm - 7:55 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
10h 30mnonstop
British Airways Logo
3:50 pm - 6:50 amIAH  Houston George Bush Intcntl-LHR London Heathrow
9h 00mnonstop
$874British Airways
Thu, Oct 22 - Fri, Oct 30
United Airlines Logo
1:40 pm - 5:55 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
10h 15mnonstop
United Airlines Logo
1:54 pm - 10:25 amIAH  Houston George Bush Intcntl-LHR London Heathrow
15h 31m1 stop Newark
$977United Airlines
Wed, Oct 21 - Fri, Oct 30
British Airways Logo
9:10 am - 1:25 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
10h 15mnonstop
British Airways Logo
10:40 pm - 12:40 pmIAH  Houston George Bush Intcntl-LHR London Heathrow
9h 00mnonstop
$994British Airways
Mon, Nov 23 - Thu, Dec 3
Lufthansa Logo
7:40 am - 4:20 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
14h 40m1 stop Munich Franz Josef Strauss
Lufthansa Logo
7:00 pm - 10:15 amIAH  Houston George Bush Intcntl-LHR London Heathrow
9h 15mnonstop
$1,076Lufthansa
Thu, Dec 3 - Fri, Dec 11
Lufthansa Logo
7:40 am - 4:20 pmLHR  London Heathrow-IAH Houston George Bush Intcntl
14h 40m1 stop Munich Franz Josef Strauss
Lufthansa Logo
7:00 pm - 10:15 amIAH  Houston George Bush Intcntl-LHR London Heathrow
9h 15mnonstop
$1,076Lufthansa
Booking Insights

Price, demand and travel trends for London Heathrow Airport to Houston flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from London Heathrow Airport to Houston with more confidence.

What's the cheapest day of the week to fly from London Heathrow Airport to Houston?

Thursday is the cheapest day of the week to fly from London Heathrow Airport to Houston, it is 4% cheaper than the average day. Sunday is the most expensive day with flight prices 8% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • February is the cheapest month to fly from London Heathrow Airport to Houston at $926 round-trip.
  • August ($1,498) and July ($1,379) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 61% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from London Heathrow Airport to Houston the cheapest?

Flights from London Heathrow Airport to Houston are cheapest 25 weeks before departure. Booking in this window typically costs about 27% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from London to Houston

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Iberia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Duncan Madden

Duncan Madden

Expert on British Airways and LHR

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

John Walton

John Walton

Expert on IAH

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Key details for London Heathrow Airport to Houston flights

Low season

August

Cheapest flight

$556
Best time to beat the crowds but there is an average 33% increase in price.
Most popular time to fly with an average 1% increase in price.
Flight from London Heathrow Airport to Houston George Bush Intcntl Airport

When to book flights from London to Houston

Are your dates flexible? Find out the best times to travel from London to Houston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from London to Houston: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from London to Houston 
AndreaFlew with United Airlines-Apr 2026
Flight connections can be risky with a 2:45-hour gap. Be aware that the Houston airport is very busy.
WarrenFlew with United Airlines-Jan 2024
The ground transportation situation (Uber, taxis) at International Arrivals (Terminals D/E) is frankly pathetic for a major American city. Way too many people and cars for the allotted space. I would recommend taking the mini-train to another terminal (A,B or C) and getting an Uber there, rather than trying to navigate International.

Your London Heathrow Airport to Houston flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airlines offer extra legroom and free seat selection on London Heathrow Airport to Houston flights?

    Among airlines operating London Heathrow Airport to Houston flights:

    • British Airways: offers extra legroom
    • United Airlines: offers free seat selection
    • Iberia: offers free seat selection
    • Austrian Airlines: offers extra legroom; offers free seat selection
    • Brussels Airlines: offers extra legroom

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from London Heathrow Airport to Houston?

    2 airlines operate flights between London Heathrow Airport and Houston. The airlines offering nonstop flights on this route include:

    • United Airlines
    • British Airways

  • Which airports can I use when flying from London Heathrow Airport to Houston?

    Flights from London Heathrow Airport to Houston usually depart from London Heathrow (LHR) and may arrive at several airports in Houston area, including Houston Hobby (HOU) and Houston George Bush Intcntl (IAH).

  • Which airlines include bags at no extra cost on London Heathrow Airport to Houston flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • British Airways: a cabin bag and a checked bag in Economy Class
    • Lufthansa: a cabin bag and a checked bag in Economy Class
    • Finnair: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from London Heathrow Airport to Houston?

    Four cabin classes are available on flights from London Heathrow Airport to Houston:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How much can I save by taking a layover when flying from London Heathrow Airport to Houston?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $803 round-trip via Newark (EWR), compared to $1,170 for nonstop.

  • What is the standard checked-bag allowance on flights from London Heathrow Airport to Houston?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $56–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which airports do connecting flights from London Heathrow Airport to Houston pass through?

    One-stop flights from London Heathrow Airport to Houston most commonly connect through:

    • New York John F Kennedy Intl (JFK) - 43% of one-stop connections
    • Boston Logan Intl (BOS) - 32% of one-stop connections
    • Istanbul (IST) - 5% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 4% of one-stop connections

    New York John F Kennedy Intl (JFK) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from London Heathrow Airport to Houston?

    Yes. Being flexible with your travel dates can save you up to 12% on the London Heathrow Airport to Houston route. Thursday is the cheapest departure day at $1,080 round-trip on average, while Sunday is the most expensive at $1,219, a difference of $139. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • At what point is a flight considered delayed from London Heathrow Airport to Houston?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the London Heathrow Airport to Houston route, 13% of flights were delayed in the past 3 months, with delays averaging 2 hours 37 minutes.

  • How are flight departures from London Heathrow Airport to Houston spread across the day?

    Morning is the busiest departure period on London Heathrow Airport to Houston flights, with 50% of flights leaving in that window. Afternoon departures account for 50%, evening flights for 0%, and night flights for 0%.

  • What popular places can I visit in Houston?

    Some of the most popular sights in Houston are Downtown Houston, George R. Brown Convention Center and Galleria Mall. These are among the most viewed places in Houston on KAYAK.

  • What are the earliest and latest flights from London Heathrow Airport to Houston?

    These are the earliest and latest flight times available from London Heathrow Airport to Houston:

    • Earliest: departs at 9:10 am and lands at 7:38 pm
    • Latest: departs at 3:25 pm and lands at 1:53 am.

    The flight takes about 10h 28m.

  • How expensive are last-minute London Heathrow Airport to Houston flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 22% above the route average of $1,125. Book 25 weeks before departure for the lowest fares.

  • How long is a flight from London Heathrow Airport to Houston?

    A nonstop flight from London Heathrow Airport to Houston takes 10h 28m, covering 4,833 miles.

  • Do I need a passport to fly from London Heathrow Airport to Houston?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from London Heathrow Airport to Houston looking right now?

    One-way fares from London Heathrow Airport to Houston are currently lower than usual. Average one-way flight prices are about $706, which is 31% below the typical average for this route.

  • How do delay rates compare for morning and evening flights from London Heathrow Airport to Houston?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much time can I save by choosing a different layover airport from London Heathrow Airport to Houston?

    Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 12h 44m, compared with 13h 08m via Amsterdam Schiphol (AMS) and 13h 45m via Atlanta Hartsfield-Jackson (ATL).

  • What is the time difference between London Heathrow Airport and Houston?

    Houston is 6 hours behind London Heathrow Airport (Central Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available in Houston?

    Since Houston is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Houston George Bush Intcntl Airport (IAH) — daily rates from around $3:

    • ACO Rent A Car
    • Easirent
    • America Car Rental
    • Hertz
    • Thrifty

    Near Houston Hobby Airport (HOU) — daily rates from around $20:

    • Thrifty
    • Dollar
    • Alamo
    • Hertz
    • Budget

  • How much should I expect to pay for a London Heathrow Airport to Houston flight?

    Round-trip flights from London Heathrow Airport to Houston range from $899 to $1,386, with an average of $1,125 over the past 12 months. Anything below $899 counts as a good deal.

Your guide to booking London Heathrow Airport to Houston flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Thursday departure instead of Sunday. On this route, Thursday flights average $1,080 - about $139 less than Sunday (11% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 25 weeks before you fly. On this route, that window historically saves about 27% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your London Heathrow Airport to Houston trip for February. Fares historically average $926 round-trip in that month - typically $572 less than the most expensive month, which is August (based on the last 12 months).
  • If arriving on time is high on your priority list, United Airlines is the strongest pick on this route. 91% of United Airlines flights from London Heathrow Airport to Houston arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 87%. When flights on this route do arrive late, the average delay is 2 hours 37 minutes, so choosing a carrier with strong on-time performance can make a difference on tight schedules.
  • If you have the time, taking a 1-stop flight through Newark Airport (EWR) can be cheaper than flying direct. The cheapest layover option averages $803 round-trip on this route - about $366 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, hotels close to the airport you're flying into can be a convenient option.

    Near Houston George Bush Intcntl Airport

    · Houston Airport Marriott at George Bush Intercontinental

    Near Houston Hobby Airport

    · DoubleTree by Hilton Hotel Houston Hobby Airport
    · Best Western Plus Hobby Airport Inn & Suites
    · TownePlace Suites by Marriott Houston Hobby Airport

Prefer to fly direct from London to Houston?

 
Find which airlines fly direct from London Heathrow Airport to Houston, which days they fly and book direct flights.

Direct departures

London Heathrow to Houston

Monday

British Airways,United Airlines

British Airways,United Airlines

Tuesday

British Airways,United Airlines

British Airways,United Airlines

Wednesday

British Airways,United Airlines

British Airways,United Airlines

Thursday

British Airways,United Airlines

British Airways,United Airlines

Friday

British Airways,United Airlines

British Airways,United Airlines

Saturday

British Airways,United Airlines

British Airways,United Airlines

Sunday

British Airways,United Airlines

British Airways,United Airlines

See more direct flights

Direct returns

Houston to London Heathrow

Monday

British Airways,United Airlines

British Airways,United Airlines

Tuesday

British Airways,United Airlines

British Airways,United Airlines

Wednesday

British Airways,United Airlines

British Airways,United Airlines

Thursday

British Airways,United Airlines

British Airways,United Airlines

Friday

British Airways,United Airlines

British Airways,United Airlines

Saturday

British Airways,United Airlines

British Airways,United Airlines

Sunday

British Airways,United Airlines

British Airways,United Airlines

See more direct flights

More options for your flight from London to Houston

Complete your trip to Houston with a hotel stay or car rental