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$346+ Cheap flights from London (LON) to Houston

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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
LON — HOU
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
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Cheapflights Tip: The best prices from London to Houston are usually found in February or January, booked 46 days in advance, depart on a Saturday or Monday and return on a Wednesday

Cheap flight deals from London to Houston

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Houston (HO1). 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 March 25, 2025.

Round-trip from

$689
(Mytrip)

One-way from

$346
(Mytrip)

Popular in

August

Cheapest in

February

Average price

$841
From London (LON) to Houston
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One-way flight from London (LON) to Houston
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Highest demand for flights based on searches. 12% potential increase in price ($136 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from London to Houston

Cheapest flights from London to Houston
Explore the most affordable flight options available from London to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

This Mytrip deal was found by Cheapflights users on 3/23. 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.
Tue 4/222:00 pmLGW - IAH
2 stops23h 36mMultiple Airlines
Tue 4/298:02 pmIAH - LGW
3 stops33h 43mMultiple Airlines
Deal found 3/23$689
This Mytrip deal was found by Cheapflights users on 3/24. 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 5/149:30 amLHR - IAH
3 stops28h 18mMultiple Airlines
Wed 5/216:00 amIAH - LHR
3 stops23h 50mMultiple Airlines
Deal found 3/24$692
This The Travel House deal was found by Cheapflights users on 3/24. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/148:25 amLHR - IAH
1 stop15h 35mIcelandair
Wed 5/211:25 pmIAH - LHR
1 stop25h 20mIcelandair
Deal found 3/24$693
This ChecknFly deal was found by Cheapflights users on 3/24. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/211:00 pmLHR - IAH
2 stops25h 44mLufthansa
Sat 7/54:20 pmIAH - LHR
Nonstop9h 20mLufthansa
Deal found 3/24$697
This The Travel House deal was found by Cheapflights users on 3/24. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1412:10 pmLGW - IAH
1 stop32h 07mIcelandair
Sun 9/213:15 pmIAH - LGW
1 stop12h 20mIcelandair
Deal found 3/24$731
This The Travel House deal was found by Cheapflights users on 3/24. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:30 amLHR - IAH
2 stops20h 50mFinnair
Thu 10/29:00 pmIAH - LHR
Nonstop9h 20mFinnair
Deal found 3/24$759
This Mytrip deal was found by Cheapflights users on 3/23. 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.
Tue 4/2211:40 amSTN - IAH
3 stops31h 39mMultiple Airlines
Tue 4/2912:40 pmIAH - STN
2 stops16h 00mMultiple Airlines
Deal found 3/23$795
This JetBlue deal was found by Cheapflights users on 3/24. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/148:25 amLHR - IAH
1 stop15h 38mJetBlue
Wed 5/2811:49 amIAH - LHR
1 stop12h 41mJetBlue
Deal found 3/24$821
This Expedia deal was found by Cheapflights users on 3/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1012:10 pmLGW - IAH
1 stop30h 10mJetBlue
Tue 6/173:30 pmIAH - LGW
1 stop12h 05mJetBlue
Deal found 3/23$831
This EaseMyTrip deal was found by Cheapflights users on 3/24. 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/85:15 pmLGW - IAH
1 stop25h 25mTurkish Airlines
Tue 5/139:00 pmIAH - LGW
1 stop30h 55mTurkish Airlines
Deal found 3/24$840
This The Travel House deal was found by Cheapflights users on 3/24. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/19:25 amLHR - IAH
Nonstop10h 15mIberia
Sun 5/1812:09 pmIAH - LHR
1 stop14h 51mIberia
Deal found 3/24$863
This FlightHub deal was found by Cheapflights users on 3/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/16:30 pmLHR - IAH
1 stop24h 10mTurkish Airlines
Wed 5/212:25 pmIAH - LHR
1 stop19h 35mTurkish Airlines
Deal found 3/24$884

Cheapflights Fare Finder

Customize your flight search to find flights from London to Houston 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 March 25, 2025.
Use the filters below to find and compare flights from London to Houston that are best for you.

Fly from

London

Fly to

Houston

Route

Depart

Return

Price

LondonHouston

LGW - IAH

LGWIAH

London Gatwick

Tue 4/22

2:00 pm-7:36 am

2 stops23h 36m

Houston George Bush Intcntl

Tue 4/29

8:02 pm-11:45 am

3 stops33h 43m

$689

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 5/14

9:30 am-7:48 am

3 stops28h 18m

Houston George Bush Intcntl

Wed 5/21

6:00 am-11:50 am

3 stops23h 50m

$692

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 5/14

8:25 am-6:00 pm

1 stop15h 35m

Houston George Bush Intcntl

Wed 5/21

1:25 pm-8:45 pm

1 stop25h 20m

$693

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Sat 6/21

1:00 pm-8:44 am

2 stops25h 44m

Houston George Bush Intcntl

Sat 7/5

4:20 pm-7:40 am

Nonstop9h 20m

$697

LondonHouston

LGW - IAH

LGWIAH

London Gatwick

Sun 9/14

12:10 pm-2:17 pm

1 stop32h 07m

Houston George Bush Intcntl

Sun 9/21

3:15 pm-9:35 am

1 stop12h 20m

$731

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 4/23

2:50 pm-7:15 pm

Nonstop10h 25m

Houston George Bush Intcntl

Wed 4/30

4:10 pm-10:35 am

1 stop12h 25m

$762

LondonHouston

STN - IAH

STNIAH

London Stansted

Tue 4/22

11:40 am-1:19 pm

3 stops31h 39m

Houston George Bush Intcntl

Tue 4/29

12:40 pm-10:40 am

2 stops16h 00m

$795

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 5/14

8:25 am-6:03 pm

1 stop15h 38m

Houston George Bush Intcntl

Wed 5/28

11:49 am-6:30 am

1 stop12h 41m

$821

LondonHouston

LGW - IAH

LGWIAH

London Gatwick

Tue 6/10

12:10 pm-12:20 pm

1 stop30h 10m

Houston George Bush Intcntl

Tue 6/17

3:30 pm-9:35 am

1 stop12h 05m

$831

LondonHouston

LGW - IAH

LGWIAH

London Gatwick

Thu 5/8

5:15 pm-12:40 pm

1 stop25h 25m

Houston George Bush Intcntl

Tue 5/13

9:00 pm-9:55 am

1 stop30h 55m

$840

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 60 results
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The best insider tips for London to Houston 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 London to Houston trip
Airports
LHR

Expect strict security at Heathrow. Ensure all liquids are in one bag to avoid delays during manual screenings.

Read more about LHRby Ramsey Qubein
IAH

For a quick ride to downtown Houston, Uber or Lyft from IAH takes about 25 minutes.

Read more about IAHby Evie Carrick
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 London to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from London 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 London to Houston

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

Use this chart to determine the optimal time to book a round-trip flight from London to Houston. Price data was last updated on March 21, 2025.

The best time to book flights from London to Houston is 46 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 London to Houston?

Currently, September is the cheapest month in which you can book a flight from London to Houston (average of $230). Flying from London to Houston in March is currently the most expensive (average of $334). 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 LON to HOU?

Find hourly flight availability from London to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 25, 2025.

When flying from London to Houston, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 12% versus a flight at noon.

Rainfall in Houston by month

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

In terms of precipitation, rainfall in Houston ranges from 3.2 - 5.9 inches per month. June is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit Houston when rainfall is around 3.2 in.

Temperature in Houston by month

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

If weather is an important factor for your trip to Houston, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. 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 Houston. Reviews last updated March 25, 2025.
See what other customers who have flown with Delta, KLM and Finnair from London to Houston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,890 reviews
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,318 reviews
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,266 reviews
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.5
Good
769 reviews
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,569 reviews
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from London to Houston. 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 London to Houston round-trip?

    According to our current data, Icelandair ($693), Lufthansa ($697), and Finnair ($762) offers the cheapest pricing from London to Houston. Icelandair is priced at 27% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $520. However, be on the lookout for offers from TAP AIR PORTUGAL and Icelandair, as they are both options that can get you from London to Houston for a low price.

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

    Most travelers choose London Heathrow - Houston Hobby, London Heathrow - Houston George Bush Intcntl or London City - Houston Hobby when deciding on the best route from London to Houston.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to Houston 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 London to Houston?

    Currently, September is the cheapest month in which you can book a flight from London to Houston (average of $230). Flying from London to Houston in March is currently the most expensive (average of $334). 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

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Alternative routes for London to Houston

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from London to Houston

Discover the top 5 airlines that operate flights from London to Houston. 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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$730Average$978FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$741Average$1,106FlexibilityNo cancel feeOn-time69%
IberiaCheapest$794Average$1,148FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$803Average$1,290FlexibilityNo cancel feeOn-time78%
LufthansaCheapest$830Average$1,072FlexibilityNo cancel feeOn-time76%
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