HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$376+ 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LHR
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
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 74 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap 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 December 15, 2025.

This Virgin Atlantic deal was found by Cheapflights users on 12/13. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/303:30 pmIAH - LHR
1 stop16h 20mVirgin Atlantic
Mon 1/198:25 pmLHR - IAH
1 stop23h 05mVirgin Atlantic
Deal found 12/13$624
This Orbitz deal was found by Cheapflights users on 12/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3012:10 pmIAH - LHR
1 stop13h 00mAir Canada
Mon 1/1911:05 amLHR - IAH
2 stops40h 34mAir Canada
Deal found 12/13$633
This Cheapflightsfares deal was found by Cheapflights users on 12/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/303:55 pmIAH - LHR
2 stops23h 05mLufthansa
Mon 1/194:40 pmLHR - IAH
2 stops28h 00mLufthansa
Deal found 12/13$635
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
Tue 12/3011:55 amIAH - LHR
1 stop12h 00mMultiple Airlines
Thu 1/89:10 amLHR - IAH
1 stop15h 36mMultiple Airlines
Deal found 12/15$637
This FlightHub deal was found by Cheapflights users on 12/15. 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 FlightHub 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
Fri 1/96:00 pmLHR - IAH
1 stop33h 44mMultiple Airlines
Deal found 12/15$640
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:05 pmIAH - LHR
Nonstop9h 10mUnited Airlines
Fri 1/910:00 amLHR - IAH
Nonstop10h 45mUnited Airlines
Deal found 12/13$641
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:05 pmIAH - LHR
Nonstop9h 10mUnited Airlines
Tue 1/1310:00 amLHR - IAH
Nonstop10h 45mUnited Airlines
Deal found 12/13$642
This Air Canada deal was found by Cheapflights users on 12/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3012:10 pmIAH - LHR
1 stop13h 00mAir Canada
Fri 1/91:25 pmLHR - IAH
1 stop14h 14mAir Canada
Deal found 12/14$648
This FlightHub deal was found by Cheapflights users on 12/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:10 pmIAH - LHR
2 stops26h 25mAir Canada
Fri 1/99:00 amLHR - IAH
2 stops18h 44mAir Canada
Deal found 12/15$651
This oojo deal was found by Cheapflights users on 12/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:16 pmHOU - LHR
1 stop30h 19mBritish Airways
Mon 1/196:10 pmLHR - HOU
2 stops29h 56mBritish Airways
Deal found 12/13$654
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Sun 12/289:35 pmIAH - LHR
1 stop26h 20mUnited Airlines
Fri 1/910:00 amLHR - IAH
Nonstop10h 45mUnited Airlines
Deal found 12/14$656
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:25 pmHOU - LHR
1 stop11h 35mDelta
Fri 1/99:40 amLHR - HOU
2 stops18h 53mDelta
Deal found 12/14$660

Find 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 December 15, 2025.

Round-trip from

$600
(Bravofly)

One-way from

$376
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$938
From Houston to London Heathrow
Search Deals
One-way flight from Houston to London Heathrow
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($189 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($32 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 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 December 15, 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

Tue 12/30

3:30 pm-1:50 pm

1 stop16h 20m

London Heathrow

Mon 1/19

8:25 pm-1:30 pm

1 stop23h 05m

$624

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 3/8

4:59 pm-9:00 am

1 stop11h 01m

London Heathrow

Wed 3/18

6:30 am-2:30 pm

1 stop13h 00m

$626

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 3/4

4:20 pm-7:30 am

Nonstop9h 10m

London Heathrow

Tue 3/10

9:30 am-7:15 pm

1 stop14h 45m

$632

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Tue 2/10

11:09 am-7:50 am

1 stop14h 41m

London Heathrow

Tue 3/17

8:40 am-10:28 pm

2 stops18h 48m

$636

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 5/4

8:05 pm-11:35 am

Nonstop9h 30m

London Heathrow

Wed 5/13

6:55 am-4:35 pm

1 stop15h 40m

$637

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Tue 1/13

11:09 am-7:50 am

1 stop14h 41m

London Heathrow

Tue 1/20

6:30 am-10:33 pm

2 stops22h 03m

$637

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 5/5

8:05 pm-11:35 am

Nonstop9h 30m

London Heathrow

Wed 5/13

6:55 am-4:35 pm

1 stop15h 40m

$637

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 1/21

5:45 am-7:50 am

1 stop20h 05m

London Heathrow

Thu 1/29

8:40 am-10:33 pm

2 stops19h 53m

$637

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Tue 1/27

5:45 am-6:25 am

1 stop18h 40m

London Heathrow

Tue 2/3

6:30 am-10:33 pm

2 stops22h 03m

$637

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 5/6

4:20 pm-7:40 am

Nonstop9h 20m

London Heathrow

Wed 5/13

6:55 am-4:35 pm

1 stop15h 40m

$637

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 40 results
1
2
3
4

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 December 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 74 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, October is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of $504). Flying from Houston to London Heathrow Airport 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 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 December 15, 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 in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 22% 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 December 16, 2024.

Travelers seeking maximum savings on their Houston to London Heathrow Airport flight should consider departing on Saturday at noon when fares are most often at their lowest. Tuesday at noon 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 Heathrow Airport?

How often are flights from Houston to London delayed?

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

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

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

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

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

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

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

The best insider tips for Houston to London Heathrow Airport 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 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

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 December 15, 2025.
Read reviews from past customers who have flown Finnair, United Airlines, and American Airlines 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.
Finnair
7.6
Good
1,337 reviews

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Comfort

7.4

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,337 reviews
Finnair
7.6
Good
1,337 reviews

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Comfort

7.4

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
United Airlines
7.4
Good
9,093 reviews
Finnair
7.6
Good
1,337 reviews

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Comfort

7.4

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
American Airlines
7.2
Good
11,048 reviews
Finnair
7.6
Good
1,337 reviews

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Comfort

7.4

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Iberia
7.0
Good
3,052 reviews
Finnair
7.6
Good
1,337 reviews

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Comfort

7.4

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.7
Okay
7,579 reviews
Finnair
7.6
Good
1,337 reviews

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Comfort

7.4

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

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?

    Virgin Atlantic, Delta, and United Airlines can get you from Houston to London Heathrow Airport in just under 9h 10m. Your travel time can differ by up to 7h 10m. Airlines will cover a distance of 4820 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 Virgin Atlantic and Air Canada. 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 $221. However, be on the lookout for offers from Lufthansa and United Airlines, 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, October is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of $504). Flying from Houston to London Heathrow Airport 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Wembley

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
Austin to Heathrow flights
Dallas/Fort Worth to Gatwick flights
Love Field to Heathrow flights
Hobby to Gatwick flights
Hobby to London City flights
George Bush Intcntl to Gatwick flights
Dallas/Fort Worth to London City flights
Dallas/Fort Worth to Stansted flights
George Bush Intcntl to London City flights
Austin to Gatwick flights
Austin to London City flights
Dallas/Fort Worth to Luton flights
Love Field to Gatwick flights
San Antonio to Heathrow flights
Austin to Stansted flights
San Antonio to Gatwick flights
San Antonio to London City flights
El Paso to Heathrow flights
Harlingen to Heathrow flights
Hobby to Luton flights
El Paso to London City flights
El Paso to Gatwick flights
Lubbock to Heathrow flights
McAllen to Heathrow flights
McAllen to London City flights
San Antonio to Stansted flights
Corpus Christi to Heathrow flights
McAllen to Gatwick flights
Midland to Heathrow flights
Lubbock to Gatwick flights
Abilene to Heathrow flights
Midland to Gatwick flights
Love Field to London City flights
Brownsville to Heathrow flights
College Station to Heathrow flights
Texarkana to Heathrow flights
Hobby to Southend flights
Killeen to Heathrow flights
Killeen 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$783FlexibilityNo cancel feeOn-time62%
Air CanadaCheapest$521Average$761FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$522Average$833FlexibilityNo 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.