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$305+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LON
Apr 16 — Apr 231
Wed 4/16
Wed 4/23
1 adult, Economy
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Cheapflights Tip: The best prices from Houston to London are usually found in October or January, booked 89 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 11, 2025.

Round-trip from

$620
(United Airlines)

One-way from

$305
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$677
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 ($265 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 11, 2025.

This United Airlines deal was found by Cheapflights users on 4/9. 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.
Tue 5/1310:00 amIAH - LHR
1 stop18h 00mUnited Airlines
Thu 5/221:40 pmLHR - IAH
Nonstop10h 15mUnited Airlines
Deal found 4/9$620
This Kiwi.com deal was found by Cheapflights users on 4/10. 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.
Sat 10/187:00 amIAH - LGW
1 stop18h 00mMultiple Airlines
Mon 10/2010:00 amLGW - IAH
1 stop17h 00mMultiple Airlines
Deal found 4/10$621
This Cheapflightsfares deal was found by Cheapflights users on 4/10. 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.
Fri 9/263:30 pmIAH - LHR
Nonstop9h 10mIberia
Tue 10/143:30 pmLHR - IAH
1 stop13h 52mIberia
Deal found 4/10$622
This Air Canada deal was found by Cheapflights users on 4/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/79:52 amIAH - LHR
2 stops14h 38mMultiple Airlines
Thu 5/159:30 amLHR - IAH
1 stop16h 26mMultiple Airlines
Deal found 4/10$625
This Mytrip deal was found by Cheapflights users on 4/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/710:00 amIAH - LCY
2 stops16h 50mMultiple Airlines
Thu 5/159:25 amLCY - IAH
2 stops16h 31mMultiple Airlines
Deal found 4/10$626
This Delta deal was found by Cheapflights users on 4/10. 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 4/276:00 amIAH - LHR
1 stop19h 15mDelta
Tue 5/136:15 amLHR - IAH
2 stops17h 31mDelta
Deal found 4/10$626
This oojo deal was found by Cheapflights users on 4/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/68:10 pmHOU - LGW
2 stops41h 50mBritish Airways
Tue 10/1411:35 amLGW - HOU
2 stops18h 09mBritish Airways
Deal found 4/10$626
This Virgin Atlantic deal was found by Cheapflights users on 4/10. 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.
Sun 4/2710:13 amHOU - LHR
1 stop15h 02mVirgin Atlantic
Tue 5/136:15 amLHR - HOU
2 stops21h 02mVirgin Atlantic
Deal found 4/10$627
This oojo deal was found by Cheapflights users on 4/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/69:00 pmIAH - LHR
Nonstop9h 20mBritish Airways
Mon 5/194:10 pmLHR - IAH
2 stops35h 30mBritish Airways
Deal found 4/10$628
This Delta deal was found by Cheapflights users on 4/10. 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 5/56:00 amHOU - LHR
1 stop18h 45mDelta
Thu 5/156:30 amLHR - HOU
2 stops17h 27mDelta
Deal found 4/10$628
This oojo deal was found by Cheapflights users on 4/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/278:16 pmHOU - LHR
2 stops34h 59mBritish Airways
Tue 5/136:10 amLHR - HOU
2 stops23h 48mBritish Airways
Deal found 4/10$630
This CheapOair deal was found by Cheapflights users on 4/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/712:05 pmIAH - LHR
2 stops15h 55mAir Canada
Wed 5/218:30 amLHR - IAH
2 stops17h 26mAir Canada
Deal found 4/11$633

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 11, 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 - LHR

IAHLHR

Houston George Bush Intcntl

Tue 5/13

10:00 am-10:00 am

1 stop18h 00m

London Heathrow

Thu 5/22

1:40 pm-5:55 pm

Nonstop10h 15m

$620

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Fri 9/26

3:30 pm-6:40 am

Nonstop9h 10m

London Heathrow

Tue 10/14

3:30 pm-11:22 pm

1 stop13h 52m

$622

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 5/7

9:52 am-6:30 am

2 stops14h 38m

London Heathrow

Thu 5/15

9:30 am-7:56 pm

1 stop16h 26m

$625

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

Sun 4/27

6:30 am-6:55 am

1 stop18h 25m

London Gatwick

Tue 5/13

10:00 am-10:46 pm

1 stop18h 46m

$625

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 4/27

7:05 am-6:45 am

1 stop17h 40m

London Heathrow

Tue 5/13

6:15 am-5:46 pm

2 stops17h 31m

$626

HoustonLondon

HOU - LGW

HOULGW

Houston Hobby

Mon 10/6

8:10 pm-8:00 pm

2 stops41h 50m

London Gatwick

Tue 10/14

11:35 am-11:44 pm

2 stops18h 09m

$626

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

Wed 5/7

10:00 am-8:50 am

2 stops16h 50m

London City

Thu 5/15

9:25 am-7:56 pm

2 stops16h 31m

$626

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Sun 4/27

10:13 am-7:15 am

1 stop15h 02m

London Heathrow

Tue 5/13

6:15 am-9:17 pm

2 stops21h 02m

$627

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 5/6

9:00 pm-12:20 pm

Nonstop9h 20m

London Heathrow

Mon 5/19

4:10 pm-9:40 pm

2 stops35h 30m

$628

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 5/5

6:00 am-6:45 am

1 stop18h 45m

London Heathrow

Thu 5/15

6:30 am-5:57 pm

2 stops17h 27m

$628

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/11

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 4, 2025.

The best time to book flights from Houston to London is 89 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 11, 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 11, 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
7,910 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

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
7,910 reviews
Delta
8.0
Very good
7,910 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

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
1,321 reviews
Delta
8.0
Very good
7,910 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

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
1,269 reviews
Delta
8.0
Very good
7,910 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

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
774 reviews
Delta
8.0
Very good
7,910 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

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
1,575 reviews
Delta
8.0
Very good
7,910 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

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?

    United Airlines, at $620, was found to be the cheapest airline from Houston to London.Alternate airlines to your destination round-trip include Iberia and Delta. United Airlines is currently priced 23% below the average price you’ll pay for this route.

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

    $338 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on Turkish Airlines and Lufthansa, with prices starting from $374 and $384, 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 City.

  • 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
Hounslow
Hayes
Thornton Heath
Luton
Horley
Wembley
Canterbury
Harrow
Dover
Gatwick
Orpington
Watford
Milton Keynes
Croydon
Borehamwood
Folkestone
Ilford
Aylesbury
Chelmsford
Sutton

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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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$566Average$707FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$568Average$744FlexibilityNo cancel feeOn-time67%
Virgin AtlanticCheapest$578Average$733FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$580Average$865FlexibilityNo cancel feeOn-time71%
FinnairCheapest$582Average$708FlexibilityNo cancel feeOn-time76%
DeltaCheapest$596Average$836FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$609Average$922FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$611Average$920FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$612Average$1,117FlexibilityNo cancel feeOn-time76%
Brussels AirlinesCheapest$864Average$1,379FlexibilityNo cancel feeOn-timeN/A

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