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$373+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LON
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheapflights Tip: The best prices from Houston to London are usually found in September or October, booked 84 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

Cheap 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 December 23, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:05 pmIAH - LHR
1 stop12h 10mLufthansa
Fri 1/97:25 amLHR - IAH
1 stop17h 36mLufthansa
Deal found 12/21$674
This Cheapflightsfares deal was found by Cheapflights users on 12/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:05 pmIAH - LHR
1 stop12h 10mMultiple Airlines
Fri 1/912:05 pmLHR - IAH
Nonstop10h 45mMultiple Airlines
Deal found 12/21$699
This United Airlines deal was found by Cheapflights users on 12/22. 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.
Mon 12/297:05 pmIAH - LHR
Nonstop9h 10mUnited Airlines
Fri 1/911:10 amLHR - IAH
1 stop16h 34mUnited Airlines
Deal found 12/22$705
This FlightHub deal was found by Cheapflights users on 12/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:10 pmIAH - LHR
2 stops26h 25mAir Canada
Fri 1/99:00 amLHR - IAH
2 stops18h 44mAir Canada
Deal found 12/21$708
This CheapOair deal was found by Cheapflights users on 12/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:45 pmIAH - LHR
1 stop29h 10mJetBlue
Wed 1/79:20 amLHR - IAH
1 stop32h 19mJetBlue
Deal found 12/21$1,005
This CheapOair deal was found by Cheapflights users on 12/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:45 pmIAH - LHR
1 stop29h 10mJetBlue
Sun 1/119:20 amLHR - IAH
1 stop32h 19mJetBlue
Deal found 12/21$1,030
This oojo deal was found by Cheapflights users on 12/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:27 pmIAH - LCY
2 stops36h 38mBritish Airways
Fri 1/95:05 pmLCY - IAH
2 stops35h 25mBritish Airways
Deal found 12/21$1,046
This Air France deal was found by Cheapflights users on 12/22. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:40 pmHOU - LHR
1 stop11h 00mAir France
Fri 1/910:45 amLHR - HOU
1 stop17h 48mAir France
Deal found 12/22$1,048
This Delta deal was found by Cheapflights users on 12/22. 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 12/2910:46 amHOU - LHR
2 stops14h 54mDelta
Fri 1/98:55 amLHR - HOU
2 stops19h 38mDelta
Deal found 12/22$1,050
This Mytrip deal was found by Cheapflights users on 12/22. 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 12/234:30 pmIAH - LGW
2 stops19h 45mMultiple Airlines
Mon 1/262:00 pmLGW - IAH
1 stop15h 34mMultiple Airlines
Deal found 12/22$1,078
This KLM deal was found by Cheapflights users on 12/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:40 pmHOU - LHR
1 stop11h 00mMultiple Airlines
Fri 1/910:45 amLHR - HOU
1 stop17h 48mMultiple Airlines
Deal found 12/21$1,098
This Cheapflightsfares deal was found by Cheapflights users on 12/22. 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.
Mon 12/294:30 pmIAH - LCY
1 stop19h 10mLufthansa
Fri 1/99:55 amLCY - IAH
1 stop14h 20mLufthansa
Deal found 12/22$1,153

Find 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 December 23, 2025.

Round-trip from

$608
(Cheapflightsfares)

One-way from

$373
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$936
From Houston to London (LON)
Search Deals
One-way flight from Houston to London (LON)
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($201 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 23, 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

Thu 1/15

11:38 am-8:40 pm

3 stops27h 02m

London Gatwick

Thu 1/22

2:00 pm-11:34 pm

1 stop15h 34m

$617

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 1/19

12:40 pm-7:50 am

1 stop13h 10m

London Heathrow

Mon 1/26

8:25 pm-1:30 pm

1 stop23h 05m

$626

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 3/10

2:59 pm-9:00 am

1 stop13h 01m

London Heathrow

Mon 3/16

8:25 pm-2:30 pm

1 stop23h 05m

$626

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 1/21

12:40 pm-8:45 am

2 stops14h 05m

London Heathrow

Wed 1/28

8:25 pm-1:30 pm

1 stop23h 05m

$631

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 1/7

4:20 pm-7:30 am

Nonstop9h 10m

London Heathrow

Wed 1/14

9:30 am-6:15 pm

1 stop14h 45m

$632

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 3/4

1:06 pm-6:25 am

1 stop11h 19m

London Heathrow

Tue 3/10

8:40 am-10:42 pm

2 stops19h 02m

$636

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Sun 1/11

5:45 am-6:25 am

1 stop18h 40m

London Heathrow

Tue 1/27

6:30 am-10:33 pm

2 stops22h 03m

$636

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Tue 1/20

11:09 am-7:50 am

1 stop14h 41m

London Heathrow

Tue 1/27

6:30 am-10:33 pm

2 stops22h 03m

$636

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 3/10

12:10 pm-7:10 am

1 stop14h 00m

London Heathrow

Mon 3/16

1:50 pm-9:44 pm

2 stops36h 54m

$641

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 2/22

8:30 am-6:55 am

1 stop16h 25m

London Heathrow

Mon 4/13

11:45 am-1:15 pm

1 stop31h 30m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 60 results
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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 December 19, 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, October is the cheapest month in which you can book a flight from Houston to London (average of $505). Flying from Houston to London in June is currently the most expensive (average of $857). 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 December 23, 2025.

One of the essential ways to save on airfare from Houston to London is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 21% 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 December 16, 2024.

Travelers seeking maximum savings on their Houston to London flight should consider departing on Wednesday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Houston to London?

How often are flights from Houston to London delayed?

About 27% of weekly flights between Houston and London have experienced delays in the past year, with the average delay time being 144 minutes.

What is the most punctual flight time for Houston to London flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Houston to London flights?

Over the last year, British Airways have had the lowest number of delays on this route, with just 19% of flights being delayed.

The best insider tips for Houston to London flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
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

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 December 23, 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
1,339 reviews

Entertainment

6.9

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.6

Crew

8.1

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
1,339 reviews
Finnair
7.6
Good
1,339 reviews

Entertainment

6.9

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.6

Crew

8.1

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
9,105 reviews
Finnair
7.6
Good
1,339 reviews

Entertainment

6.9

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.6

Crew

8.1

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
11,054 reviews
Finnair
7.6
Good
1,339 reviews

Entertainment

6.9

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.6

Crew

8.1

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
3,056 reviews
Finnair
7.6
Good
1,339 reviews

Entertainment

6.9

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.6

Crew

8.1

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
7,605 reviews
Finnair
7.6
Good
1,339 reviews

Entertainment

6.9

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.6

Crew

8.1

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 9h 10m. Houston and London are separated by a distance of 4820 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 Virgin Atlantic and Air Canada. 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?

    $221 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Lufthansa and United Airlines, with prices starting from $296 and $362, 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, October is the cheapest month in which you can book a flight from Houston to London (average of $505). Flying from Houston to London in June is currently the most expensive (average of $857). 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
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Hayes
Orpington
Watford
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Folkestone
Eastbourne
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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$783FlexibilityNo cancel feeOn-time62%
Virgin AtlanticCheapest$497Average$792FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$521Average$892FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$522Average$774FlexibilityNo cancel feeOn-time71%
FinnairCheapest$553Average$791FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$555Average$878FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$561Average$907FlexibilityNo cancel feeOn-time69%
IberiaCheapest$580Average$803FlexibilityNo cancel feeOn-time77%
DeltaCheapest$607Average$1,049FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$722Average$1,097FlexibilityNo cancel feeOn-time76%

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