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$362+ 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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LON
May 4 — May 111
Sun 5/4
Sun 5/11
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 April 29, 2025.

Round-trip from

$639
(Kiwi.com)

One-way from

$362
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$680
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. 24% potential increase in price ($261 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/258:13 pmIAH - LGW
1 stop28h 42mMultiple Airlines
Tue 6/1710:00 amLGW - IAH
1 stop19h 39mMultiple Airlines
Deal found 4/28$639
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/249:00 pmIAH - LHR
Nonstop9h 20mIberia
Tue 9/309:25 amLHR - IAH
Nonstop10h 15mIberia
Deal found 4/28$654
This StudentUniverse deal was found by Cheapflights users on 4/28. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/243:30 pmIAH - LHR
Nonstop9h 10mFinnair
Tue 9/306:10 pmLHR - IAH
2 stops29h 33mFinnair
Deal found 4/28$656
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/241:13 pmIAH - LHR
1 stop11h 37mBritish Airways
Wed 10/82:50 pmLHR - IAH
Nonstop10h 25mBritish Airways
Deal found 4/28$658
This United Airlines deal was found by Cheapflights users on 4/28. 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 8/2710:00 amIAH - LHR
1 stop14h 30mUnited Airlines
Thu 9/47:25 amLHR - IAH
1 stop15h 10mUnited Airlines
Deal found 4/28$666
This KLM deal was found by Cheapflights users on 4/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/295:00 pmIAH - LHR
1 stop12h 35mKLM
Wed 11/126:30 amLHR - IAH
1 stop13h 00mKLM
Deal found 4/28$667
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/242:25 pmHOU - LHR
1 stop12h 35mBritish Airways
Wed 10/88:20 amLHR - HOU
1 stop13h 36mBritish Airways
Deal found 4/28$668
This Booking.com deal was found by Cheapflights users on 4/28. 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.
Sun 10/2611:05 amIAH - LHR
1 stop15h 05mAir Canada
Wed 11/56:50 amLHR - IAH
2 stops20h 29mAir Canada
Deal found 4/28$670
This Delta deal was found by Cheapflights users on 4/28. 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.
Sun 9/219:40 amIAH - LHR
1 stop15h 05mDelta
Fri 10/36:30 amLHR - IAH
1 stop12h 45mDelta
Deal found 4/28$672
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1710:00 amIAH - LHR
1 stop14h 30mMultiple Airlines
Wed 10/156:50 amLHR - IAH
2 stops18h 52mMultiple Airlines
Deal found 4/28$676
This lol.travel deal was found by Cheapflights users on 4/28. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/123:50 pmIAH - LHR
1 stop15h 55mVirgin Atlantic
Tue 5/276:15 amLHR - IAH
1 stop13h 20mVirgin Atlantic
Deal found 4/28$680
This Delta deal was found by Cheapflights users on 4/28. 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.
Sun 10/264:20 pmHOU - LHR
1 stop14h 20mDelta
Wed 11/56:30 amLHR - HOU
2 stops21h 10mDelta
Deal found 4/28$682

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 April 29, 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

IAH - LGW

IAHLGW

Houston George Bush Intcntl

Sun 5/25

8:13 pm-6:55 am

1 stop28h 42m

London Gatwick

Tue 6/17

10:00 am-11:39 pm

1 stop19h 39m

$639

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 9/24

9:00 pm-12:20 pm

Nonstop9h 20m

London Heathrow

Tue 9/30

9:25 am-1:40 pm

Nonstop10h 15m

$654

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 9/24

3:30 pm-6:40 am

Nonstop9h 10m

London Heathrow

Tue 9/30

6:10 pm-5:43 pm

2 stops29h 33m

$656

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 9/24

1:13 pm-6:50 am

1 stop11h 37m

London Heathrow

Wed 10/8

2:50 pm-7:15 pm

Nonstop10h 25m

$658

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 8/27

10:00 am-6:30 am

1 stop14h 30m

London Heathrow

Thu 9/4

7:25 am-4:35 pm

1 stop15h 10m

$666

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 9/24

8:20 pm-2:25 pm

1 stop12h 05m

London Heathrow

Tue 9/30

8:20 am-3:57 pm

1 stop13h 37m

$668

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 10/26

11:05 am-7:10 am

1 stop15h 05m

London Heathrow

Wed 11/5

6:50 am-9:19 pm

2 stops20h 29m

$670

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 9/21

5:50 pm-1:10 pm

1 stop13h 20m

London Heathrow

Wed 10/1

6:30 am-1:15 pm

1 stop12h 45m

$672

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 9/17

10:00 am-6:30 am

1 stop14h 30m

London Heathrow

Wed 10/15

6:50 am-7:42 pm

2 stops18h 52m

$676

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 5/12

3:50 pm-1:45 pm

1 stop15h 55m

London Heathrow

Tue 5/27

6:15 am-1:35 pm

1 stop13h 20m

$680

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 60 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 website for current security wait times to plan your arrival and avoid delays.

Read more about IAHby Evie Carrick
LHR

Take the Heathrow Express for the fastest route to central London, arriving at Paddington Station.

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 April 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 $1,110). 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 April 29, 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 June 9, 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.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 April 29, 2025.
To help decide which airline to fly from Houston to London, see what other customers have to say about Delta, KLM and Finnair. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,273 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,587 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    Iberia, at $654, was found to be the cheapest airline from Houston to London.Alternate airlines to your destination round-trip include Finnair and British Airways. Iberia is currently priced 18% below the average price you’ll pay for this route.

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

    $369 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on WestJet and British Airways, with prices starting from $391 and $410, 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 $1,110). 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 Houston?

Book flights to Houston if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Horley
Canterbury
Harrow
Wembley
Dover
Gatwick
Orpington
Watford
Croydon
Borehamwood
Folkestone
Ilford
Aylesbury
Chelmsford
Sutton
Brentwood

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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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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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$563Average$705FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$568Average$744FlexibilityNo cancel feeOn-time67%
Virgin AtlanticCheapest$578Average$706FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$580Average$854FlexibilityNo cancel feeOn-time71%
FinnairCheapest$582Average$708FlexibilityNo cancel feeOn-time76%
DeltaCheapest$596Average$838FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$604Average$897FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$611Average$923FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$611Average$1,124FlexibilityNo cancel feeOn-time76%
Austrian AirlinesCheapest$957Average$1,374FlexibilityNo cancel feeOn-time78%

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