HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$366+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LON
Jan 9 — Jan 161
Fri 1/9
Fri 1/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Houston to London with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 10, 2025.

This lastminute.com deal was found by Cheapflights users on 12/8. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:40 pmIAH - LHR
1 stop29h 15mLufthansa
Tue 1/1310:25 amLHR - IAH
1 stop14h 36mLufthansa
Deal found 12/8$617
This Gotogate deal was found by Cheapflights users on 12/8. 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.
Mon 12/296:40 pmIAH - LHR
1 stop29h 15mMultiple Airlines
Tue 1/136:50 amLHR - IAH
2 stops20h 49mMultiple Airlines
Deal found 12/8$620
This Gotogate deal was found by Cheapflights users on 12/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:10 amIAH - LHR
1 stop19h 20mMultiple Airlines
Fri 1/166:50 amLHR - IAH
2 stops20h 49mMultiple Airlines
Deal found 12/10$633
This United Airlines deal was found by Cheapflights users on 12/8. 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 12/296:20 pmIAH - LHR
1 stop30h 20mUnited Airlines
Fri 1/911:10 amLHR - IAH
1 stop29h 59mUnited Airlines
Deal found 12/8$639
This United Airlines deal was found by Cheapflights users on 12/8. 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 12/294:20 pmIAH - LHR
Nonstop9h 10mUnited Airlines
Tue 1/1312:05 pmLHR - IAH
Nonstop10h 45mUnited Airlines
Deal found 12/8$640
This American Airlines deal was found by Cheapflights users on 12/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/299:45 pmIAH - LHR
Nonstop9h 00mAmerican Airlines
Tue 1/139:35 amLHR - IAH
Nonstop10h 30mAmerican Airlines
Deal found 12/9$641
This Iberia deal was found by Cheapflights users on 12/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:15 pmIAH - LHR
1 stop12h 35mIberia
Tue 1/139:35 amLHR - IAH
Nonstop10h 30mIberia
Deal found 12/10$645
This Virgin Atlantic deal was found by Cheapflights users on 12/10. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:30 pmIAH - LCY
1 stop20h 55mVirgin Atlantic
Tue 1/138:40 amLCY - IAH
2 stops21h 16mVirgin Atlantic
Deal found 12/10$658
This Kiwi.com deal was found by Cheapflights users on 12/7. 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.
Sat 12/138:23 pmIAH - LGW
1 stop31h 37mMultiple Airlines
Sat 1/102:00 pmLGW - IAH
1 stop15h 34mMultiple Airlines
Deal found 12/7$682
This Kiwi.com deal was found by Cheapflights users on 12/7. 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.
Sun 12/148:49 amIAH - LGW
1 stop19h 11mMultiple Airlines
Fri 1/92:00 pmLGW - IAH
1 stop26h 01mMultiple Airlines
Deal found 12/7$696
This Kiwi.com deal was found by Cheapflights users on 12/7. 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.
Sun 12/148:49 amIAH - LGW
1 stop19h 11mMultiple Airlines
Sat 1/102:00 pmLGW - IAH
2 stops26h 33mMultiple Airlines
Deal found 12/7$708
This Kiwi.com deal was found by Cheapflights users on 12/7. 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 12/158:49 amIAH - LGW
1 stop19h 11mMultiple Airlines
Sat 1/102:00 pmLGW - IAH
1 stop15h 34mMultiple Airlines
Deal found 12/7$747

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 10, 2025.

Round-trip from

$596
(Kiwi.com)

One-way from

$366
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$903
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 ($202 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 10, 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

Mon 2/9

4:20 pm-7:30 am

Nonstop9h 10m

London Heathrow

Thu 3/5

11:10 am-4:30 pm

1 stop35h 20m

$630

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 2/9

4:06 pm-9:40 pm

2 stops23h 34m

London Heathrow

Mon 2/16

6:40 am-11:56 pm

2 stops23h 16m

$631

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 1/13

7:05 pm-10:15 am

Nonstop9h 10m

London Heathrow

Tue 2/3

9:30 am-6:15 pm

1 stop14h 45m

$631

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 1/18

4:20 pm-7:30 am

Nonstop9h 10m

London Heathrow

Tue 1/27

9:30 am-6:15 pm

1 stop14h 45m

$631

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 3/4

4:20 pm-7:30 am

Nonstop9h 10m

London Heathrow

Tue 3/10

8:30 am-7:15 pm

1 stop15h 45m

$631

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 1/19

4:25 pm-11:40 am

1 stop13h 15m

London Heathrow

Wed 1/28

8:40 am-11:56 pm

2 stops21h 16m

$636

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 1/21

5:45 am-7:50 am

1 stop20h 05m

London Heathrow

Wed 1/28

6:30 am-10:33 pm

2 stops22h 03m

$636

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 1/12

5:04 pm-11:40 am

1 stop12h 36m

London Heathrow

Tue 1/20

6:30 am-10:33 pm

2 stops22h 03m

$636

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Sun 1/18

5:45 am-7:50 am

1 stop20h 05m

London Heathrow

Tue 1/27

6:30 am-10:33 pm

2 stops22h 03m

$636

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 4/22

8:05 pm-11:35 am

Nonstop9h 30m

London Heathrow

Wed 4/29

7:25 am-4:35 pm

1 stop15h 10m

$636

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 60 results
1
2
3
...
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 December 5, 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 $504). 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 10, 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 145 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 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 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 10, 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
1,334 reviews

Entertainment

6.9

Overall

7.6

Crew

8.1

Comfort

7.4

Food

6.7

Boarding

7.6

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
1,334 reviews
Finnair
7.6
Good
1,334 reviews

Entertainment

6.9

Overall

7.6

Crew

8.1

Comfort

7.4

Food

6.7

Boarding

7.6

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
9,095 reviews
Finnair
7.6
Good
1,334 reviews

Entertainment

6.9

Overall

7.6

Crew

8.1

Comfort

7.4

Food

6.7

Boarding

7.6

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
11,048 reviews
Finnair
7.6
Good
1,334 reviews

Entertainment

6.9

Overall

7.6

Crew

8.1

Comfort

7.4

Food

6.7

Boarding

7.6

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
3,045 reviews
Finnair
7.6
Good
1,334 reviews

Entertainment

6.9

Overall

7.6

Crew

8.1

Comfort

7.4

Food

6.7

Boarding

7.6

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
7,573 reviews
Finnair
7.6
Good
1,334 reviews

Entertainment

6.9

Overall

7.6

Crew

8.1

Comfort

7.4

Food

6.7

Boarding

7.6

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 Air Canada and American Airlines. 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?

    $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 $504). 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
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Wembley
Folkestone
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
Austin to Heathrow flights
Dallas/Fort Worth to Gatwick flights
Love Field to Heathrow flights
Hobby to Gatwick flights
Hobby to London City flights
Dallas/Fort Worth to London City flights
Dallas/Fort Worth to Stansted flights
George Bush Intcntl to Gatwick flights
Dallas/Fort Worth to Edinburgh flights
Austin to Gatwick flights
George Bush Intcntl to London City flights
Hobby to Edinburgh flights
Austin to London City flights
George Bush Intcntl to Edinburgh flights
Love Field to Edinburgh flights
Dallas/Fort Worth to Luton flights
Love Field to Gatwick flights
Austin to Stansted flights
George Bush Intcntl to Stansted flights
Hobby to Manchester flights
San Antonio to Heathrow flights
George Bush Intcntl to Manchester flights
San Antonio to Gatwick flights
Dallas/Fort Worth to Manchester flights
San Antonio to London City flights
Austin to Edinburgh flights
Austin to Manchester flights
El Paso to Heathrow flights
Love Field to Manchester flights
San Antonio to Edinburgh flights
George Bush Intcntl to Luton flights
San Antonio to Manchester flights
El Paso to London City flights
Dallas/Fort Worth to Newcastle upon Tyne flights
Harlingen to Heathrow flights
Love Field to London City flights
Lubbock to Heathrow flights
San Antonio to Stansted flights
Hobby to Leeds flights
McAllen to Heathrow flights
Hobby to Birmingham flights
El Paso to Gatwick flights
Corpus Christi to Heathrow flights
George Bush Intcntl to Leeds flights
Dallas/Fort Worth to Birmingham 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 December 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$783FlexibilityNo cancel feeOn-time62%
Air CanadaCheapest$521Average$761FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$522Average$778FlexibilityNo cancel feeOn-time71%
FinnairCheapest$553Average$771FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$558Average$872FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$561Average$898FlexibilityNo cancel feeOn-time69%
IberiaCheapest$579Average$773FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$587Average$877FlexibilityNo cancel feeOn-time72%
DeltaCheapest$607Average$1,049FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$722Average$1,097FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.