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$402+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LON
May 18 — May 251
Mon 5/18
Mon 5/25
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 April 18, 2026.

This Norse deal was found by Cheapflights users on 4/14. 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.
Tue 4/286:57 pm
IAH
-
LGW
1 stop33h 03m
Multiple Airlines
Wed 5/62:00 pm
LGW
-
IAH
1 stop34h 33m
Multiple Airlines
Deal found 4/14$715
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Tue 5/266:00 am
IAH
-
LGW
1 stop22h 00m
Multiple Airlines
Mon 6/12:00 pm
LGW
-
IAH
1 stop24h 50m
Multiple Airlines
Deal found 4/16$725
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Thu 5/281:29 pm
IAH
-
LGW
1 stop14h 31m
Multiple Airlines
Mon 6/12:00 pm
LGW
-
IAH
1 stop24h 50m
Multiple Airlines
Deal found 4/16$729
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Tue 5/268:02 pm
IAH
-
LGW
2 stops31h 58m
Multiple Airlines
Wed 6/32:00 pm
LGW
-
IAH
1 stop24h 50m
Multiple Airlines
Deal found 4/16$730
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 5/278:50 pm
IAH
-
LGW
2 stops31h 10m
Multiple Airlines
Wed 6/32:00 pm
LGW
-
IAH
1 stop24h 50m
Multiple Airlines
Deal found 4/16$732
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Thu 5/288:02 pm
IAH
-
LGW
2 stops31h 58m
Multiple Airlines
Wed 6/32:00 pm
LGW
-
IAH
1 stop24h 50m
Multiple Airlines
Deal found 4/16$733
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Tue 5/266:00 am
IAH
-
LGW
1 stop22h 00m
Multiple Airlines
Sun 5/312:00 pm
LGW
-
IAH
1 stop23h 33m
Multiple Airlines
Deal found 4/16$735
This FlightHub deal was found by Cheapflights users on 4/13. 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.
Tue 4/219:05 pm
IAH
-
STN
1 stop37h 35m
Turkish Airlines
Thu 5/215:35 pm
STN
-
IAH
1 stop25h 10m
Turkish Airlines
Deal found 4/13$736
This FlightHub deal was found by Cheapflights users on 4/14. 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.
Tue 4/289:05 pm
IAH
-
STN
1 stop37h 35m
Turkish Airlines
Fri 5/86:55 am
STN
-
IAH
1 stop18h 15m
Turkish Airlines
Deal found 4/14$737
This Justfly.com deal was found by Cheapflights users on 4/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:05 pm
IAH
-
STN
1 stop37h 35m
Turkish Airlines
Tue 5/196:55 am
STN
-
IAH
1 stop18h 15m
Turkish Airlines
Deal found 4/16$738
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Tue 5/268:02 pm
IAH
-
LGW
2 stops31h 58m
Multiple Airlines
Tue 6/22:00 pm
LGW
-
IAH
1 stop24h 55m
Multiple Airlines
Deal found 4/16$741
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 5/278:50 pm
IAH
-
LGW
2 stops31h 10m
Multiple Airlines
Tue 6/22:00 pm
LGW
-
IAH
1 stop24h 55m
Multiple Airlines
Deal found 4/16$743

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 April 18, 2026.

Round-trip from

$715
(Norse)

One-way from

$402
(The Travel House)

Popular in

June

Cheapest in

September

Average price

$739
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 ($209 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 18, 2026.
Use the filters below to find and compare flights from Houston to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonLondon

IAH - STN

IAHSTN

Houston George Bush Intcntl

Mon 8/17

9:05 pm-10:10 pm

1 stop19h 05m

London Stansted

Wed 9/2

10:50 am-7:10 pm

1 stop38h 20m

$764

HoustonLondon

IAH - STN

IAHSTN

Houston George Bush Intcntl

Tue 9/15

9:05 pm-4:40 pm

1 stop37h 35m

London Stansted

Tue 9/29

6:55 am-7:10 pm

1 stop18h 15m

$791

HoustonLondon

IAH - STN

IAHSTN

Houston George Bush Intcntl

Mon 10/5

2:30 pm-4:40 pm

1 stop20h 10m

London Stansted

Sun 10/18

5:35 pm-12:45 pm

1 stop25h 10m

$853

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 5/13

6:00 am-6:25 am

1 stop18h 25m

London Heathrow

Wed 5/20

6:30 am-10:26 pm

2 stops21h 56m

$872

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 5/3

9:43 am-6:25 am

1 stop14h 42m

London Heathrow

Tue 5/19

8:40 am-9:25 pm

2 stops18h 45m

$873

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Sun 5/3

5:23 pm-11:20 am

1 stop11h 57m

London Heathrow

Tue 5/19

9:55 am-10:26 pm

2 stops18h 31m

$873

HoustonLondon

IAH - LTN

IAHLTN

Houston George Bush Intcntl

Thu 5/14

4:06 pm-10:10 pm

3 stops24h 04m

London Luton

Sun 5/17

8:30 am-10:16 pm

3 stops43h 46m

$875

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Tue 5/5

6:00 am-6:25 am

1 stop18h 25m

London Heathrow

Tue 5/12

9:55 am-10:26 pm

2 stops18h 31m

$875

HoustonLondon

HOU - LGW

HOULGW

Houston Hobby

Tue 5/5

5:23 pm-4:00 pm

2 stops16h 37m

London Gatwick

Wed 5/13

10:25 am-10:26 pm

2 stops18h 01m

$886

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

Wed 4/29

3:25 pm-9:30 am

1 stop12h 05m

London City

Tue 5/5

5:50 pm-1:20 pm

1 stop25h 30m

$888

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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 April 10, 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, January is the cheapest month in which you can book a flight from Houston to London (average of $424). Flying from Houston to London in December is currently the most expensive (average of $1,607). 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 April 18, 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 23% 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 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?

Thursday 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 April 18, 2026.
Peruse reviews from past customers who have flown with Finnair,United Airlines, andAmerican 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
7.7
Good
1,389 reviews

Comfort

7.4

Food

6.7

Crew

8.2

Overall

7.7

Boarding

7.7

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
Finnair
7.7
Good
1,389 reviews
Finnair
7.7
Good
1,389 reviews

Comfort

7.4

Food

6.7

Crew

8.2

Overall

7.7

Boarding

7.7

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
United Airlines
7.4
Good
9,605 reviews
Finnair
7.7
Good
1,389 reviews

Comfort

7.4

Food

6.7

Crew

8.2

Overall

7.7

Boarding

7.7

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
American Airlines
7.1
Good
11,604 reviews
Finnair
7.7
Good
1,389 reviews

Comfort

7.4

Food

6.7

Crew

8.2

Overall

7.7

Boarding

7.7

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
Iberia
7.0
Good
3,182 reviews
Finnair
7.7
Good
1,389 reviews

Comfort

7.4

Food

6.7

Crew

8.2

Overall

7.7

Boarding

7.7

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
British Airways
6.7
Okay
7,892 reviews
Finnair
7.7
Good
1,389 reviews

Comfort

7.4

Food

6.7

Crew

8.2

Overall

7.7

Boarding

7.7

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.

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 18h 25m. 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 Virgin Atlantic 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?

    $362 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Lufthansa 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, January is the cheapest month in which you can book a flight from Houston to London (average of $424). Flying from Houston to London in December is currently the most expensive (average of $1,607). 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
Winchester
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Borehamwood
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Sutton
Stansted

Browse thousands of different options on Cheapflights for your next trip

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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 April 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$268FlexibilityNo cancel feeOn-time62%
Virgin AtlanticCheapest$497Average$714FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$499Average$741FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$521Average$892FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$525Average$870FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$538Average$820FlexibilityNo cancel feeOn-time70%
FinnairCheapest$540Average$881FlexibilityNo cancel feeOn-time76%
IberiaCheapest$581Average$844FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$689Average$1,034FlexibilityNo cancel feeOn-time76%
Austrian AirlinesCheapest$723Average$1,242FlexibilityNo cancel feeOn-time78%

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