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$279+ 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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LON
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Houston to London are usually found in October or September, booked 84 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 September 11, 2025.

Round-trip from

$514
(United Airlines)

One-way from

$279
(Mytrip)

Popular in

June

Cheapest in

October

Average price

$659
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 ($211 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/192:38 pmIAH - LHR
1 stop11h 47mUnited Airlines
Wed 11/2612:05 pmLHR - IAH
Nonstop10h 45mUnited Airlines
Deal found 9/11$514
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/211:13 pmIAH - LHR
1 stop12h 02mDelta
Thu 10/26:30 amLHR - IAH
1 stop12h 45mDelta
Deal found 9/11$515
This Norse deal was found by Cheapflights users on 9/11. 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 Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/15:48 pmIAH - LGW
1 stop34h 12mMultiple Airlines
Wed 10/82:00 pmLGW - IAH
1 stop27h 51mMultiple Airlines
Deal found 9/11$515
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1710:17 amIAH - LHR
2 stops52h 43mUnited Airlines
Tue 10/282:30 pmLHR - IAH
1 stop30h 54mUnited Airlines
Deal found 9/11$516
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1410:13 amHOU - LHR
1 stop15h 02mDelta
Tue 10/288:55 amLHR - HOU
1 stop13h 53mDelta
Deal found 9/11$516
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/112:39 pmIAH - LHR
1 stop14h 11mDelta
Tue 10/149:55 amLHR - IAH
2 stops17h 14mDelta
Deal found 9/11$518
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/241:13 pmHOU - LHR
1 stop15h 57mDelta
Wed 10/19:55 amLHR - HOU
2 stops18h 42mDelta
Deal found 9/11$518
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 10/14:36 pmIAH - LGW
1 stop35h 24mMultiple Airlines
Tue 10/72:00 pmLGW - IAH
1 stop26h 47mMultiple Airlines
Deal found 9/10$518
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/283:30 pmIAH - LHR
Nonstop9h 10mBritish Airways
Tue 10/79:25 amLHR - IAH
Nonstop10h 20mBritish Airways
Deal found 9/11$519
This Air Canada deal was found by Cheapflights users on 9/10. 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.
Tue 10/2110:00 amIAH - LHR
2 stops14h 30mMultiple Airlines
Thu 10/301:25 pmLHR - IAH
2 stops26h 44mMultiple Airlines
Deal found 9/10$520
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:44 pmHOU - LHR
2 stops19h 26mDelta
Thu 11/2011:30 amLHR - HOU
2 stops18h 16mDelta
Deal found 9/11$520
This Delta deal was found by Cheapflights users on 9/10. 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.
Tue 9/306:37 pmHOU - LHR
2 stops19h 23mDelta
Thu 10/911:45 amLHR - HOU
2 stops17h 15mDelta
Deal found 9/10$521

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 September 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

Sun 9/28

12:39 pm-10:15 am

1 stop15h 36m

London Heathrow

Tue 10/7

6:15 am-5:59 pm

2 stops17h 44m

$516

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sat 9/27

6:16 pm-10:00 am

1 stop33h 44m

London Heathrow

Tue 10/7

1:40 pm-5:55 pm

Nonstop10h 15m

$516

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 11/12

2:32 pm-7:50 am

1 stop11h 18m

London Heathrow

Wed 11/19

11:30 am-11:46 pm

2 stops18h 16m

$516

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Fri 10/10

10:17 am-9:00 pm

2 stops52h 43m

London Heathrow

Tue 10/21

10:00 am-2:15 pm

Nonstop10h 15m

$516

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 10/13

2:22 pm-11:10 am

1 stop14h 48m

London Heathrow

Tue 10/21

9:55 am-11:00 pm

2 stops19h 05m

$518

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Tue 9/30

1:13 pm-6:45 am

1 stop11h 32m

London Heathrow

Thu 10/9

1:05 pm-11:00 pm

1 stop15h 55m

$523

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 10/5

3:30 pm-6:40 am

Nonstop9h 10m

London Heathrow

Tue 12/23

9:35 am-2:05 pm

Nonstop10h 30m

$524

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 11/12

3:50 pm-6:50 am

Nonstop9h 00m

London Heathrow

Wed 11/19

9:35 am-2:05 pm

Nonstop10h 30m

$524

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Tue 9/30

1:13 pm-6:45 am

1 stop11h 32m

London Heathrow

Wed 10/8

9:20 am-5:48 pm

1 stop14h 28m

$524

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 9/30

3:30 pm-6:40 am

Nonstop9h 10m

London Heathrow

Tue 10/7

9:25 am-1:45 pm

Nonstop10h 20m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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 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 August 29, 2025.

The best time to book flights from Houston to London is 84 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 $1,098). 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 September 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 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.

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 September 11, 2025.
Peruse reviews from past customers who have flown with Finnair, United Airlines, and American Airlines 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.
Finnair
7.6
Good
1,323 reviews

Food

6.7

Boarding

7.6

Overall

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.5

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
Finnair
7.6
Good
1,323 reviews
Finnair
7.6
Good
1,323 reviews

Food

6.7

Boarding

7.6

Overall

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.5

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
United Airlines
7.4
Good
8,937 reviews
Finnair
7.6
Good
1,323 reviews

Food

6.7

Boarding

7.6

Overall

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.5

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
American Airlines
7.2
Good
10,000 reviews
Finnair
7.6
Good
1,323 reviews

Food

6.7

Boarding

7.6

Overall

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.5

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
Iberia
7.0
Good
2,929 reviews
Finnair
7.6
Good
1,323 reviews

Food

6.7

Boarding

7.6

Overall

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.5

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
British Airways
6.7
Okay
7,361 reviews
Finnair
7.6
Good
1,323 reviews

Food

6.7

Boarding

7.6

Overall

7.6

Entertainment

6.9

Crew

8.1

Comfort

7.5

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?

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.

  • How long is the flight from Houston to London?

    Departing from Houston to London will take you 11h 18m. Houston and London are separated by a distance of 4835 mi. This flight may include one or multiple stops.

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

    JetBlue, at $101, was found to be the cheapest airline from Houston to London.Alternate airlines to your destination round-trip include Delta and American Airlines. JetBlue is currently priced 87% below the average price you’ll pay for this route.

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

    $286 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on British Airways and KLM, with prices starting from $391 and $393, 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 $1,098). 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
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Hayes
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Southend-on-Sea
Harrow
Canterbury
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Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
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Bedford
Wembley
Folkestone
Chichester
Arundel

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$569FlexibilityNo cancel feeOn-time62%
DeltaCheapest$447Average$833FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$498Average$743FlexibilityNo cancel feeOn-time71%
IberiaCheapest$562Average$732FlexibilityNo cancel feeOn-time77%
FinnairCheapest$573Average$733FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$578Average$881FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$582Average$783FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$589Average$883FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$612Average$1,022FlexibilityNo cancel feeOn-time76%
Austrian AirlinesCheapest$644Average$1,343FlexibilityNo cancel feeOn-time78%

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