LHR

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Everything you should know

Advice from real travelers
On this long-haul route, BA premium economy adds more space and a calmer trip.
American Main Cabin Extra adds early boarding and free drinks over standard economy.
Expert advice
+1
Expert advice
+1
Nonstop flights
Every day
You can fly direct with United Airlines and British Airways. Average duration is 9h 08m
Direct flights
+1
Direct flights
+1
Top routes
HOU - LHR
Cheapest • 14% average savings
IAH - LHR
Most popular
Insights
Insights
Avoid delays
British Airways
Most punctual • 85% on-time
Night
Best time • Fewest delays
Insights
Insights
When to book
21 weeks
in advance
Our data shows that travelers who book at least 21 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 28% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Atlanta Hartsfield-Jackson (ATL)
Cheapest • Avg $609 (round-trip)
Washington, D.C. Dulles Intl (IAD)
Shortest trip • 12h 46m (one-way)
Insights
Insights
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We hope you love your trip to London Heathrow Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Houston to London

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

Recent round-trip flight deals from Houston to London

Multiple Airlines Logo
HO1  Johor Bahru Hallmark Regency Hotel-LHR London Heathrow Airport
4833 mimulti-stop
Multiple Airlines Logo
LHR  London Heathrow Airport-HO1 Johor Bahru Hallmark Regency Hotel
4833 mimulti-stop
Multiple Airlines
Booking Insights

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

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

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

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Houston to London Heathrow Airport. It’s 7% cheaper than the average day, while Monday is the most expensive, with prices 9% higher.

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

•January is the cheapest month to fly from Houston to London Heathrow Airport at $702 round-trip.
•June ($1,377) and July ($1,206) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 96% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Houston to London Heathrow Airport are cheapest 21 weeks before departure. Booking in this window typically costs about 20% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Expert advice

Expert advice for your flight from Houston to London

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

Read more
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.

Read more
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
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.

Read more
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.

Read more

Key details for Houston to London Heathrow Airport flights

Low season

January
Beat the crowds with an average 32% drop in travelers.
The most popular month to fly with an average 48% increase in travelers.

When to book flights from Houston to London

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

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

Insights shared by verified travelers who flew the route from Houston to London 
AndrewFlew with United Airlines-Jul 2025
United really looked after me, just make sure you arrive good and early to ensure an unpressurised check in
Verified travelerFlew with British Airways-May 2025
Heathrow has good signage. There are lots of people going to the same terminal waiting for the train. Be patient and when you have connecting flights choose a 2-hour layover.
JamesFlew with American Airlines-Apr 2025
Try to avoid Heathrow! Not the most convenient to get into London unless you have a driver. Also, Heathrow needs better signs on where to go to exit and better wifi for foreign travelers.

Your Houston to London Heathrow Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

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

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

    • Earliest: departs at 3:50 pm and lands at 12:58 am
    • Latest: departs at 10:40 pm and lands at 7:48 am.

    The flight takes about 9h 08m.

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

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

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

    Prices vary by airline.

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

    A nonstop flight from Houston to London Heathrow Airport takes 9h 08m, covering 4,833 miles.

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

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

    Round-trip flights from Houston to London Heathrow Airport range from $770 to $1,249, with an average of $976 over the past 12 months. Anything below $770 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 19% above the $976 route average. Book 21 weeks before departure for the lowest fares.

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

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $609 round-trip via Atlanta Hartsfield-Jackson (ATL), compared to $1,004 for nonstop.

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

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $36–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

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

    Afternoon is the busiest departure period on Houston to London Heathrow Airport flights, with 50% of flights leaving in that window. Evening departures account for 25%, night flights for 25%, and morning flights for 0%.

  • Which airlines offer Wi-Fi on Houston to London Heathrow Airport flights?

    American Airlines is the only airline on the Houston to London Heathrow Airport route offering in-flight Wi-Fi. Pricing depends on fare class.

  • What car rental options are available at London Heathrow Airport (LHR)?

    London Heathrow Airport (LHR) hosts 5 major car rental companies, with daily rates starting from around $7 for economy cars. Top options include:

    • GREEN MOTION
    • DRIVALIA
    • Europcar
    • Alamo
    • Hertz

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

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

  • What time of day has the fewest delays on flights from Houston to London Heathrow Airport?

    Night flights have the fewest delays on this route, while evening departures tend to have the most.

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

    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 Houston to London Heathrow Airport route, 20% of flights were delayed in the past 3 months, with delays averaging 2h 33m.

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

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

    • Istanbul (IST) - 30% of one-stop connections
    • New York John F Kennedy Intl (JFK) - 25% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 9% of one-stop connections
    • Amsterdam Schiphol (AMS) - 8% of one-stop connections

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

    Yes. Flexible dates can save you up to 15% on flights from Houston to London Heathrow Airport. Wednesday is the cheapest departure day at $912 round-trip on average, while Monday is the most expensive at $1,069, a difference of $157.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Houston to London Heathrow Airport?

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

    • United Airlines
    • British Airways

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

    Flying via Washington, D.C. Dulles Intl (IAD) gives the shortest average 1-stop total travel time at 12h 46m, compared with 12h 47m via Dallas/Fort Worth (DFW) and 12h 53m via Boston Logan Intl (BOS).

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

    London Heathrow Airport is 5 hours ahead of Houston (British Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in London Heathrow Airport?

    Some of the most popular sights in London Heathrow Airport are Hyde Park and Buckingham Palace. These are among the most viewed places in London Heathrow Airport on KAYAK.

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

    Among airlines operating Houston to London Heathrow Airport flights:

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

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

  • Which airlines include bags at no extra cost on Houston to London Heathrow Airport 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
    • United Airlines: a cabin bag and a checked bag in Economy Class
    • American Airlines: a cabin bag and a checked bag in Economy Class

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

Your guide to booking Houston to London Heathrow Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Monday. On this route, Wednesday flights average $912, about $157 less than Monday fares (15% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 21 weeks before you fly. On this route, that window historically saves about 20% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Houston to London Heathrow Airport trip for January. Fares historically average $702 round-trip in that month - typically $675 less than the most expensive month, which is June (based on the last 12 months).
  • For the best chance of arriving on time, fly with British Airways. Over the past three months, 85% of British Airways flights from Houston to London Heathrow Airport arrived on time, slightly above the route average of 80%. When flights on this route arrive late, they're delayed by an average of 2h 33m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Atlanta Hartsfield-Jackson Airport (ATL) can be cheaper than flying direct. The cheapest layover option averages $609 round-trip on this route - about $395 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to London Heathrow Airport.

    • Hilton London Heathrow Airport

Prefer to fly direct from Houston to London Heathrow Airport?

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

Direct departures

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

Direct returns

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

More options for your flight from Houston to London

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

Car rentals in London
Hotels in London
Vacations in London