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$300+ 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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LON
mar. 26 — abr. 21
mié. 3/26
mié. 4/2
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 marzo 21, 2025.

Round-trip from

$589
(Cheapflightsfares)

One-way from

$300
(Mytrip)

Popular in

June

Cheapest in

October

Average price

$712
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. 25% potential increase in price ($273 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 March 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 marzo 21, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/20. 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.
mié. 4/303:25 pmIAH - LHR
Nonstop9h 15mIberia
jue. 5/82:50 pmLHR - IAH
Nonstop10h 25mIberia
Deal found 3/20$589
This Mytrip deal was found by Cheapflights users on 3/20. 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.
jue. 4/2412:40 pmIAH - STN
2 stops16h 00mMultiple Airlines
mié. 4/3011:40 amSTN - IAH
3 stops29h 11mMultiple Airlines
Deal found 3/20$592
This Cheapflightsfares deal was found by Cheapflights users on 3/20. 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.
mar. 9/232:25 pmHOU - LHR
1 stop12h 35mIberia
vie. 10/34:25 pmLHR - HOU
1 stop13h 22mIberia
Deal found 3/20$597
This Mytrip deal was found by Cheapflights users on 3/21. 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.
mié. 4/168:25 amIAH - LGW
1 stop15h 55mMultiple Airlines
mar. 4/222:00 pmLGW - IAH
2 stops23h 36mMultiple Airlines
Deal found 3/21$600
This Gotogate deal was found by Cheapflights users on 3/21. 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.
dom. 4/68:05 amIAH - LHR
1 stop16h 25mAir Canada
mar. 4/222:05 pmLHR - IAH
1 stop13h 56mAir Canada
Deal found 3/21$610
This StudentUniverse deal was found by Cheapflights users on 3/20. 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.
mié. 9/243:30 pmIAH - LHR
Nonstop9h 10mFinnair
lun. 9/296:10 pmLHR - IAH
2 stops29h 33mFinnair
Deal found 3/20$613
This American Airlines deal was found by Cheapflights users on 3/20. 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.
mar. 4/157:47 amIAH - LGW
2 stops16h 48mAmerican Airlines
mié. 4/3010:40 amLGW - IAH
2 stops17h 37mAmerican Airlines
Deal found 3/20$618
This oojo deal was found by Cheapflights users on 3/20. 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.
mié. 9/242:25 pmHOU - LHR
1 stop14h 25mBritish Airways
lun. 9/296:10 pmLHR - HOU
2 stops29h 39mBritish Airways
Deal found 3/20$624
This United deal was found by Cheapflights users on 3/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/2310:15 amIAH - LHR
1 stop17h 25mUnited Airlines
mié. 4/307:25 amLHR - IAH
1 stop15h 10mUnited Airlines
Deal found 3/20$629
This Delta deal was found by Cheapflights users on 3/20. 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.
dom. 4/66:00 amIAH - LHR
1 stop19h 15mDelta
mar. 4/226:15 amLHR - IAH
1 stop13h 20mDelta
Deal found 3/20$630
This CrystalTravel deal was found by Cheapflights users on 3/20. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/712:52 pmHOU - LHR
1 stop11h 53mVirgin Atlantic
mié. 5/1411:20 amLHR - HOU
1 stop15h 57mVirgin Atlantic
Deal found 3/20$630
This oojo deal was found by Cheapflights users on 3/20. 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.
mié. 9/2411:16 amIAH - LHR
1 stop13h 39mBritish Airways
lun. 9/298:00 pmLHR - IAH
2 stops31h 20mBritish Airways
Deal found 3/20$632

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 marzo 21, 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

mié. 4/30

3:25 pm-6:40 am

Nonstop9h 15m

London Heathrow

jue. 5/8

2:50 pm-7:15 pm

Nonstop10h 25m

$589

HoustonLondon

IAH - STN

IAHSTN

Houston George Bush Intcntl

jue. 4/24

12:40 pm-10:40 am

2 stops16h 00m

London Stansted

mié. 4/30

11:40 am-10:51 am

3 stops29h 11m

$592

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

mié. 4/16

8:25 am-6:20 am

1 stop15h 55m

London Gatwick

mar. 4/22

2:00 pm-7:36 am

2 stops23h 36m

$600

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

mié. 4/30

2:10 pm-9:00 am

1 stop12h 50m

London Heathrow

jue. 5/8

12:00 pm-7:44 pm

1 stop13h 44m

$603

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

dom. 4/6

8:05 am-6:30 am

1 stop16h 25m

London Heathrow

mar. 4/22

2:05 pm-10:01 pm

1 stop13h 56m

$610

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

mar. 4/15

7:47 am-6:35 am

2 stops16h 48m

London Gatwick

mié. 4/30

10:40 am-10:17 pm

2 stops17h 37m

$618

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

dom. 4/6

3:25 pm-6:40 am

Nonstop9h 15m

London Heathrow

mar. 4/22

9:25 am-1:40 pm

Nonstop10h 15m

$627

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

mié. 4/23

10:15 am-9:40 am

1 stop17h 25m

London Heathrow

mié. 4/30

7:25 am-4:35 pm

1 stop15h 10m

$629

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

dom. 4/6

6:00 am-7:15 am

1 stop19h 15m

London Heathrow

mar. 4/22

6:15 am-1:35 pm

1 stop13h 20m

$630

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

mié. 5/7

12:52 pm-6:45 am

1 stop11h 53m

London Heathrow

mié. 5/14

11:20 am-9:17 pm

1 stop15h 57m

$630

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

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 March 14, 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 $1,122). 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 marzo 21, 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 marzo 21, 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
7,895 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

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
7,895 reviews
Delta
8.0
Very good
7,895 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

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
1,319 reviews
Delta
8.0
Very good
7,895 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

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
1,266 reviews
Delta
8.0
Very good
7,895 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

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
768 reviews
Delta
8.0
Very good
7,895 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

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
1,567 reviews
Delta
8.0
Very good
7,895 reviews

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

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 $589, was found to be the cheapest airline from Houston to London.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Iberia is currently priced 27% below the average price you’ll pay for this route.

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

    $399 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on Air Canada and Iberia, with prices starting from $401 and $411, 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 $1,122). 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
Wembley
Harrow
Horley
Canterbury
Gatwick
Dover
Orpington
Watford
Milton Keynes
Croydon
Borehamwood
Bromley
Folkestone
Ilford
Aylesbury
Chelmsford

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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 marzo 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$561Average$703FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$568Average$730FlexibilityNo cancel feeOn-time67%
Virgin AtlanticCheapest$578Average$737FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$578Average$842FlexibilityNo cancel feeOn-time71%
FinnairCheapest$581Average$708FlexibilityNo cancel feeOn-time76%
DeltaCheapest$596Average$838FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$608Average$914FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$610Average$915FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$612Average$1,069FlexibilityNo cancel feeOn-time76%
Brussels AirlinesCheapest$864Average$1,347FlexibilityNo cancel feeOn-timeN/A
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