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$234+ Cheap flights from Houston to London (LON)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LON
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Houston to London are usually found in October or January, booked 44 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

Cheap flight deals from Houston to London

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 28, 2025.

Round-trip from

$533
(Booking.com)

One-way from

$234
(Mytrip)

Popular in

June

Cheapest in

October

Average price

$907
From Houston to London (LON)
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One-way flight from Houston to London (LON)
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Highest demand for flights based on searches. 21% potential increase in price ($212 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Houston to London

Cheapest flights from Houston to London
Explore the most affordable flight options available from Houston to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

This Booking.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:44 pmHOU - LHR
1 stop13h 41mBritish Airways
Tue 9/308:20 amLHR - HOU
1 stop13h 35mBritish Airways
Deal found 7/28$533
This Virgin Atlantic deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/39:57 amHOU - LHR
2 stops14h 48mVirgin Atlantic
Tue 9/239:00 amLHR - HOU
2 stops19h 37mVirgin Atlantic
Deal found 7/28$536
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/46:00 amHOU - LHR
2 stops18h 25mDelta
Tue 8/198:40 amLHR - HOU
2 stops19h 51mDelta
Deal found 7/28$537
This Norse deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/45:25 amIAH - LGW
1 stop22h 35mMultiple Airlines
Sat 10/112:00 pmLGW - IAH
1 stop24h 24mMultiple Airlines
Deal found 7/28$538
This Iberia deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/32:33 pmHOU - LHR
1 stop14h 17mIberia
Thu 9/2510:30 amLHR - HOU
1 stop15h 32mIberia
Deal found 7/28$539
This Gotogate deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:10 amIAH - LHR
2 stops18h 00mMultiple Airlines
Sun 12/76:50 amLHR - IAH
2 stops20h 49mMultiple Airlines
Deal found 7/27$546
This Iberia deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/123:30 pmIAH - LHR
Nonstop9h 10mIberia
Tue 10/146:10 amLHR - IAH
2 stops21h 57mIberia
Deal found 7/25$548
This Cheapflightsfares deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/149:40 pmIAH - LHR
Nonstop9h 20mBritish Airways
Sun 9/212:50 pmLHR - IAH
Nonstop10h 25mBritish Airways
Deal found 7/27$549
This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/119:44 amIAH - LGW
2 stops16h 51mAmerican Airlines
Thu 9/1810:25 amLGW - IAH
2 stops19h 28mAmerican Airlines
Deal found 7/27$551
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/24:00 pmIAH - LHR
2 stops15h 45mDelta
Fri 9/1211:45 amLHR - IAH
2 stops18h 05mDelta
Deal found 7/27$552
This Booking.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/33:30 pmIAH - LCY
1 stop11h 20mVirgin Atlantic
Tue 8/199:20 amLCY - IAH
1 stop33h 55mVirgin Atlantic
Deal found 7/27$555
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/204:20 pmIAH - LHR
Nonstop9h 20mUnited Airlines
Sun 8/247:25 amLHR - IAH
1 stop15h 00mUnited Airlines
Deal found 7/28$560

Cheapflights Fare Finder

 
Customize your flight search to find flights from Houston to London 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, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
Use the filters below to find and compare flights from Houston to London that are best for you.

Fly from

Houston

Fly to

London

Route

Depart

Return

Price

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 9/10

6:44 pm-2:25 pm

1 stop13h 41m

London Heathrow

Tue 9/30

8:20 am-3:55 pm

1 stop13h 35m

$533

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 9/3

9:57 am-6:45 am

2 stops14h 48m

London Heathrow

Tue 9/23

9:00 am-10:37 pm

2 stops19h 37m

$536

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 9/1

6:00 am-1:30 pm

1 stop25h 30m

London Heathrow

Tue 9/9

9:00 am-10:31 pm

2 stops19h 31m

$537

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

Sat 10/4

5:25 am-10:00 am

1 stop22h 35m

London Gatwick

Sat 10/11

2:00 pm-8:24 am

1 stop24h 24m

$538

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 9/3

2:33 pm-10:50 am

1 stop14h 17m

London Heathrow

Thu 9/25

10:30 am-8:02 pm

1 stop15h 32m

$539

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 12/2

7:10 am-7:10 am

2 stops18h 00m

London Heathrow

Sun 12/7

6:50 am-9:39 pm

2 stops20h 49m

$546

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 10/12

3:30 pm-6:40 am

Nonstop9h 10m

London Heathrow

Tue 10/14

6:10 am-10:07 pm

2 stops21h 57m

$548

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 9/14

9:40 pm-1:00 pm

Nonstop9h 20m

London Heathrow

Sun 9/21

2:50 pm-7:15 pm

Nonstop10h 25m

$549

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

Thu 9/11

9:44 am-8:35 am

2 stops16h 51m

London Gatwick

Thu 9/18

10:25 am-11:53 pm

2 stops19h 28m

$551

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 9/2

4:00 pm-1:45 pm

2 stops15h 45m

London Heathrow

Fri 9/12

11:45 am-11:50 pm

2 stops18h 05m

$552

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 59 results
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The best insider tips for Houston to London flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston to London trip
Airports
IAH

Check the IAH Depart tab for current security wait times at all terminals to save time before your flight.

Read more about IAHby Evie Carrick
LHR

Take the Heathrow Express to Paddington Station for the fastest route into central London from LHR.

Read more about LHRby Ramsey Qubein
Our travel experts
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick

Evie Carrick

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from Houston to London

Have a flexible travel schedule? Discover the best time to fly to London from Houston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston to London

How far ahead should I book a flight from Houston to London?

Use this chart to determine the optimal time to book a round-trip flight from Houston to London. Price data was last updated on July 25, 2025.

The best time to book flights from Houston to London is 44 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Houston to London?

Currently, November is the cheapest month in which you can book a flight from Houston to London (average of $661). Flying from Houston to London in June is currently the most expensive (average of $1,097). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HOU to LON?

Find hourly flight availability from Houston to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

One of the essential ways to save on airfare from Houston to London is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 12% on airfare.

What is the cheapest day to fly from Houston to London?

Use this chart to determine the cheapest time to fly round-trip from Houston to London. Price data was last updated on October 20, 2024.

Travelers seeking maximum savings on their Houston to London flight should consider departing on Saturday at noon when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Houston to London?

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated July 28, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and SWISS from Houston to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,971 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,381 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.6
Good
1,679 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,893 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Houston to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Houston to London round-trip?

    British Airways, at $533, was found to be the cheapest airline from Houston to London.Alternate airlines to your destination round-trip include Delta and Virgin Atlantic. British Airways is currently priced 31% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Houston to London one-way?

    $245 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Air Canada and JetBlue, with prices starting from $362 and $374, respectively.

  • What are the most popular routes from Houston to London?

    The most popular route from Houston to London is Houston Hobby - London Heathrow. You may also consider Houston George Bush Intcntl - London Heathrow or Houston Hobby - London Gatwick.

  • Can I find deals for flights from Houston to London that include hotel bookings?

    Yes. In addition to deals on Houston to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Houston to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to London.

  • Can I find deals for business class flights from Houston to London?

    Yes. Cheapflights offers flight deals from Houston to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Houston to London?

    Currently, November is the cheapest month in which you can book a flight from Houston to London (average of $661). Flying from Houston to London in June is currently the most expensive (average of $1,097). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dover
Gatwick
Orpington
Watford
Borehamwood
Dartford
Aylesbury
Chelmsford
Folkestone
Southend-on-Sea
Chichester
Arundel
Milton Keynes
Bishop's Stortford
Eastbourne

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Alternative routes for Houston to London

See prices for flight routes from nearby airports that may be better suited for you.
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George Bush Intcntl to Heathrow flights
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Top 10 airlines flying from Houston to London

Discover the top 10 airlines that operate flights from Houston to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$396Average$823FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$521Average$747FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$551Average$763FlexibilityNo cancel feeOn-time71%
IberiaCheapest$562Average$712FlexibilityNo cancel feeOn-time77%
FinnairCheapest$581Average$726FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$582Average$819FlexibilityNo cancel feeOn-time72%
LufthansaCheapest$611Average$937FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$612Average$877FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$616Average$889FlexibilityNo cancel feeOn-time70%
Austrian AirlinesCheapest$1,125Average$1,374FlexibilityNo cancel feeOn-time78%

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