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$184+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LON
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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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 February 13, 2026.

This KLM deal was found by Cheapflights users on 2/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/212:47 pm
IAH
-
LHR
1 stop12h 18m
KLM
Thu 3/196:30 am
LHR
-
IAH
1 stop13h 00m
KLM
Deal found 2/9$626
This Gotogate deal was found by Cheapflights users on 2/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1112:10 pm
IAH
-
LHR
2 stops16h 55m
Multiple Airlines
Wed 3/186:50 am
LHR
-
IAH
2 stops19h 49m
Multiple Airlines
Deal found 2/11$627
This FlightHub deal was found by Cheapflights users on 2/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/285:25 pm
IAH
-
LHR
1 stop36h 25m
Air Canada
Tue 3/106:50 am
LHR
-
IAH
2 stops19h 49m
Air Canada
Deal found 2/10$628
This Mytrip deal was found by Cheapflights users on 2/12. 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 3/2512:10 pm
IAH
-
STN
2 stops22h 55m
Multiple Airlines
Tue 3/315:20 pm
STN
-
IAH
3 stops33h 06m
Multiple Airlines
Deal found 2/12$628
This Air Canada deal was found by Cheapflights users on 2/12. 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.
Sun 3/15:25 pm
IAH
-
LHR
1 stop36h 25m
Air Canada
Tue 3/176:50 am
LHR
-
IAH
2 stops19h 49m
Air Canada
Deal found 2/12$629
This Norse deal was found by Cheapflights users on 2/11. 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 4/111:15 am
IAH
-
LGW
1 stop16h 45m
Multiple Airlines
Wed 4/82:00 pm
LGW
-
IAH
1 stop14h 34m
Multiple Airlines
Deal found 2/11$629
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:30 am
IAH
-
LHR
1 stop19h 35m
Delta
Thu 3/196:30 am
LHR
-
IAH
1 stop13h 00m
Delta
Deal found 2/9$630
This Delta deal was found by Cheapflights users on 2/13. 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 3/412:49 pm
IAH
-
LHR
1 stop13h 16m
Delta
Tue 3/106:30 am
LHR
-
IAH
1 stop13h 00m
Delta
Deal found 2/13$631
This FlightHub deal was found by Cheapflights users on 2/13. 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.
Wed 3/412:10 pm
IAH
-
LHR
1 stop13h 00m
Air Canada
Wed 3/116:50 am
LHR
-
IAH
2 stops19h 49m
Air Canada
Deal found 2/13$632
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Sun 3/15:25 pm
IAH
-
LHR
1 stop36h 25m
United Airlines
Tue 3/106:35 am
LHR
-
IAH
2 stops33h 34m
United Airlines
Deal found 2/11$633
This Kiwi.com deal was found by Cheapflights users on 2/12. 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.
Mon 3/309:15 pm
IAH
-
LGW
1 stop30h 45m
Multiple Airlines
Wed 4/82:00 pm
LGW
-
IAH
1 stop14h 34m
Multiple Airlines
Deal found 2/12$633
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/113:18 pm
IAH
-
LHR
2 stops13h 57m
Delta
Thu 3/196:30 am
LHR
-
IAH
1 stop13h 00m
Delta
Deal found 2/9$634

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 February 13, 2026.

Round-trip from

$626
(Gotogate)

One-way from

$184
(CheapTickets)

Popular in

June

Cheapest in

September

Average price

$693
From Houston to London (LON)
Search Deals
One-way flight from Houston to London (LON)
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($215 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 13, 2026.
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

Mon 3/2

12:47 pm-7:05 am

1 stop12h 18m

London Heathrow

Thu 3/19

6:30 am-2:30 pm

1 stop13h 00m

$626

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 3/4

7:05 am-6:25 am

1 stop17h 20m

London Heathrow

Thu 3/19

6:30 am-2:30 pm

1 stop13h 00m

$631

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 3/4

3:08 pm-8:45 am

1 stop11h 37m

London Heathrow

Wed 3/18

6:30 am-2:30 pm

1 stop13h 00m

$631

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 3/4

3:08 pm-8:45 am

1 stop11h 37m

London Heathrow

Tue 3/10

6:30 am-2:30 pm

1 stop13h 00m

$631

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 3/2

12:15 pm-10:15 am

2 stops16h 00m

London Heathrow

Mon 3/9

11:45 am-2:30 pm

1 stop31h 45m

$635

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 5/10

4:20 pm-7:40 am

Nonstop9h 20m

London Heathrow

Wed 5/20

6:55 am-4:35 pm

1 stop15h 40m

$641

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 4/29

4:20 pm-7:40 am

Nonstop9h 20m

London Heathrow

Tue 5/5

7:25 am-4:35 pm

1 stop15h 10m

$641

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 4/22

8:05 pm-11:35 am

Nonstop9h 30m

London Heathrow

Wed 4/29

6:55 am-4:35 pm

1 stop15h 40m

$641

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 3/4

1:06 pm-7:50 am

1 stop12h 44m

London Heathrow

Tue 3/10

6:30 am-10:42 pm

2 stops21h 12m

$641

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 4/6

8:05 pm-11:35 am

Nonstop9h 30m

London Heathrow

Tue 5/5

6:55 am-4:35 pm

1 stop15h 40m

$641

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

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 February 6, 2026.

The best time to book flights from Houston to London is 81 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 $851). 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 February 13, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Houston to London as you normally would.

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

How often are flights from Houston to London delayed?

About 25% of weekly flights between Houston and London have experienced delays in the past year, with the average delay time being 148 minutes.

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

Historically, flights departing at night 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 Friday 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 17% 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
Our travel experts
Evie Carrick

Evie Carrick

Expert on IAH

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

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 February 13, 2026.
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
1,362 reviews

Boarding

7.7

Entertainment

6.9

Overall

7.6

Food

6.7

Comfort

7.4

Crew

8.2

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
1,362 reviews
Finnair
7.6
Good
1,362 reviews

Boarding

7.7

Entertainment

6.9

Overall

7.6

Food

6.7

Comfort

7.4

Crew

8.2

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
9,289 reviews
Finnair
7.6
Good
1,362 reviews

Boarding

7.7

Entertainment

6.9

Overall

7.6

Food

6.7

Comfort

7.4

Crew

8.2

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
11,288 reviews
Finnair
7.6
Good
1,362 reviews

Boarding

7.7

Entertainment

6.9

Overall

7.6

Food

6.7

Comfort

7.4

Crew

8.2

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
3,115 reviews
Finnair
7.6
Good
1,362 reviews

Boarding

7.7

Entertainment

6.9

Overall

7.6

Food

6.7

Comfort

7.4

Crew

8.2

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
7,739 reviews
Finnair
7.6
Good
1,362 reviews

Boarding

7.7

Entertainment

6.9

Overall

7.6

Food

6.7

Comfort

7.4

Crew

8.2

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 12h 18m. 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 86% below the average price you’ll pay for this route.

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

    $296 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on United Airlines and British Airways, with prices starting from $362 and $369, 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 $851). 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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Croydon
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Watford
Hayes
Borehamwood
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Chipping Norton
Horley
Kingston upon Thames
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.
Dallas/Fort Worth to Heathrow flights
Hobby to Heathrow flights
George Bush Intcntl to Heathrow flights
Dallas/Fort Worth to Gatwick flights
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George Bush Intcntl to Gatwick flights
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Hobby to Edinburgh flights
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George Bush Intcntl to Edinburgh flights
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George Bush Intcntl to Manchester flights
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San Antonio to Stansted flights
El Paso to Heathrow flights
Dallas/Fort Worth to Leeds flights
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Austin to Manchester flights
Dallas/Fort Worth to Southampton flights
El Paso to Gatwick flights
Hobby to Birmingham flights
Lubbock to Heathrow flights
Dallas/Fort Worth to Birmingham flights
George Bush Intcntl to Birmingham flights
San Antonio to Edinburgh flights
McAllen to Heathrow flights
San Antonio to Manchester flights
Harlingen to Heathrow flights
Corpus Christi to Heathrow flights

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 February 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$783FlexibilityNo cancel feeOn-time62%
Virgin AtlanticCheapest$497Average$769FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$521Average$892FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$522Average$771FlexibilityNo cancel feeOn-time71%
FinnairCheapest$540Average$792FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$550Average$842FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$555Average$886FlexibilityNo cancel feeOn-time69%
IberiaCheapest$581Average$807FlexibilityNo cancel feeOn-time77%
DeltaCheapest$607Average$1,091FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$689Average$1,046FlexibilityNo cancel feeOn-time76%

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