HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$289+ Cheap flights from Houston to Heathrow (LHR)

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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LHR
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Houston to Heathrow 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 Heathrow are usually found in February or October, booked 16 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Houston to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$512
(Mytrip)

One-way from

$289
(oojo)

Popular in

June

Cheapest in

February

Average price

$672
From Houston to London Heathrow
Search Deals
One-way flight from Houston to London Heathrow
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($215 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Houston to Heathrow

Cheapest flights from Houston to Heathrow
Explore the most affordable flight options available from Houston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Mytrip deal was found by Cheapflights users on 9/15. 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 10/1412:05 pmIAH - LHR
2 stops15h 30mAir Canada
Tue 10/216:50 amLHR - IAH
2 stops21h 24mAir Canada
Deal found 9/15$512
This United Airlines deal was found by Cheapflights users on 9/17. 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 9/284:20 pmIAH - LHR
Nonstop9h 20mUnited Airlines
Tue 10/141:40 pmLHR - IAH
Nonstop10h 15mUnited Airlines
Deal found 9/17$513
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/86:05 pmIAH - LHR
1 stop12h 15mUnited Airlines
Thu 10/2310:00 amLHR - IAH
Nonstop10h 15mUnited Airlines
Deal found 9/14$514
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:15 pmIAH - LHR
Nonstop9h 20mUnited Airlines
Thu 10/306:35 amLHR - IAH
1 stop15h 35mUnited Airlines
Deal found 9/15$515
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1710:17 amIAH - LHR
2 stops52h 43mUnited Airlines
Wed 11/512:05 pmLHR - IAH
Nonstop10h 45mUnited Airlines
Deal found 9/16$516
This Delta deal was found by Cheapflights users on 9/15. 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 11/112:32 pmHOU - LHR
1 stop15h 08mDelta
Wed 11/1911:30 amLHR - HOU
2 stops18h 16mDelta
Deal found 9/15$516
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/301:13 pmIAH - LHR
1 stop12h 02mDelta
Tue 11/118:55 amLHR - IAH
2 stops18h 17mDelta
Deal found 9/17$517
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:00 amHOU - LHR
1 stop18h 45mDelta
Wed 10/811:30 amLHR - HOU
2 stops17h 30mDelta
Deal found 9/17$517
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/285:45 amIAH - LHR
1 stop19h 00mDelta
Tue 10/146:30 amLHR - IAH
2 stops17h 29mDelta
Deal found 9/16$518
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/286:00 amHOU - LHR
1 stop18h 45mDelta
Tue 10/149:55 amLHR - HOU
2 stops19h 05mDelta
Deal found 9/17$518
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2810:30 amIAH - LHR
1 stop13h 55mDelta
Fri 11/146:20 amLHR - IAH
1 stop13h 35mDelta
Deal found 9/17$519
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/154:20 pmIAH - LHR
Nonstop9h 20mUnited Airlines
Wed 10/229:30 amLHR - IAH
2 stops15h 15mUnited Airlines
Deal found 9/17$520

Cheapflights Fare Finder

 
Customize your flight search to find flights from Houston to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Houston to London Heathrow Airport that are best for you.

Fly from

Houston

Fly to

Heathrow

Route

Depart

Return

Price

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 11/5

1:29 pm-7:50 am

1 stop12h 21m

London Heathrow

Wed 11/12

6:20 am-5:50 pm

2 stops17h 30m

$516

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 12/2

12:59 pm-8:45 am

1 stop13h 46m

London Heathrow

Fri 12/12

8:55 am-10:22 pm

2 stops19h 27m

$516

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 10/29

6:44 pm-11:40 am

1 stop11h 56m

London Heathrow

Thu 11/6

8:55 am-11:00 pm

2 stops20h 05m

$516

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 11/19

11:05 am-7:05 am

1 stop14h 00m

London Heathrow

Thu 11/27

8:40 am-10:30 pm

2 stops19h 50m

$517

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 11/24

10:40 am-7:50 am

1 stop15h 10m

London Heathrow

Wed 12/3

8:55 am-11:46 pm

2 stops20h 51m

$517

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 10/8

7:05 am-6:45 am

1 stop17h 40m

London Heathrow

Tue 10/21

8:40 am-10:11 pm

2 stops19h 31m

$518

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 10/21

11:49 am-11:10 am

1 stop17h 21m

London Heathrow

Mon 10/27

5:35 pm-2:55 pm

1 stop26h 20m

$519

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Sat 11/22

6:33 pm-8:10 pm

2 stops19h 37m

London Heathrow

Wed 12/3

6:20 am-11:46 pm

2 stops23h 26m

$521

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 10/7

9:00 pm-12:20 pm

Nonstop9h 20m

London Heathrow

Wed 10/29

9:35 am-3:05 pm

Nonstop10h 30m

$524

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Sun 9/28

6:00 am-6:45 am

1 stop18h 45m

London Heathrow

Tue 10/14

3:15 pm-11:00 pm

1 stop13h 45m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 44 results
1
2
3
...
5

The best insider tips for Houston to London Heathrow Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston to London Heathrow Airport trip
Airports
IAH

Check security wait times on the IAH Depart tab to manage your schedule efficiently before your flight to London.

Read more about IAHby Evie Carrick
LHR

The Heathrow Express is the fastest way to central London, reaching Paddington Station quickly from the airport.

Read more about LHRby Ramsey Qubein
Our travel experts
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick

Evie Carrick

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from Houston to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 Heathrow Airport

How far ahead should I book a flight from Houston to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Houston to Heathrow. Price data was last updated on September 12, 2025.

The price you pay for your flight from Houston to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 16 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Houston to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of $661). Flying from Houston to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 LHR?

Find hourly flight availability from Houston to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

One of the essential ways to save on airfare from Houston to London Heathrow Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 19% on airfare.

What is the cheapest day to fly from Houston to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Houston to Heathrow. Price data was last updated on October 20, 2024.

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

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated September 17, 2025.
Read reviews from past customers who have flown United Airlines, American Airlines, and Iberia from Houston to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Iberia
7.0
Good
2,925 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Lufthansa
6.8
Okay
7,409 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.7
Okay
7,367 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Houston to Heathrow. 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 Heathrow Airport?

    Delta can get you from Houston to London Heathrow Airport in just under 12h 21m. Your travel time can differ by up to . Airlines will cover a distance of 4820 mi.

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

    JetBlue, at $101, was found to be the cheapest airline from Houston to London Heathrow Airport.Alternate airlines to your destination round-trip include Delta and American Airlines. Users have found that JetBlue is 87% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $289. However, be on the lookout for offers from British Airways and KLM, as they are both options that can get you from Houston to London Heathrow Airport for a low price.

  • Can I find deals for flights from Houston to Heathrow that include hotel bookings?

    Yes. In addition to deals on Houston to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Houston to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Heathrow.

  • Can I find deals for business class flights from Houston to Heathrow?

    Yes. Cheapflights offers flight deals from Houston to Heathrow 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 Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of $661). Flying from Houston to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Wembley
Folkestone
Chichester

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 Heathrow

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
Hobby to Gatwick flights
Austin to Heathrow flights
Hobby to London City flights
Dallas/Fort Worth to London City flights
Love Field to Heathrow flights
George Bush Intcntl to Gatwick flights
George Bush Intcntl to London City flights
Dallas/Fort Worth to Stansted flights
Dallas/Fort Worth to Luton flights
Austin to Gatwick flights
Love Field to Gatwick flights
Austin to London City flights
San Antonio to Heathrow flights
San Antonio to Gatwick flights
Austin to Stansted flights
San Antonio to London City flights
Hobby to Luton flights
El Paso to Heathrow flights
Midland to Heathrow flights
El Paso to London City flights
Love Field to London City flights
Harlingen to Heathrow flights
McAllen to Heathrow flights
Corpus Christi to Heathrow flights
Abilene to Heathrow flights
Midland to Gatwick flights
Lubbock to Heathrow flights
San Antonio to Stansted flights
McAllen to London City flights
Killeen to Heathrow flights
Brownsville to Heathrow flights
College Station to Heathrow flights
El Paso to Gatwick flights
Texarkana to Heathrow flights
McAllen to Gatwick flights
San Angelo to Heathrow flights
Killeen to Gatwick flights
Texarkana to Gatwick flights

Top 10 airlines flying from Houston to Heathrow

Discover the top 10 airlines that operate flights from Houston to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$569FlexibilityNo cancel feeOn-time62%
DeltaCheapest$447Average$932FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$522Average$817FlexibilityNo cancel feeOn-time71%
IberiaCheapest$572Average$733FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$574Average$877FlexibilityNo cancel feeOn-time70%
FinnairCheapest$582Average$733FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$582Average$783FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$586Average$878FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$612Average$1,021FlexibilityNo cancel feeOn-time76%
Austrian AirlinesCheapest$644Average$1,343FlexibilityNo cancel feeOn-time78%

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.