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$253+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LHR
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Houston to London Heathrow are usually found in February or October, booked 78 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 July 3, 2025.

Round-trip from

$662
(United Airlines)

One-way from

$253
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$1,047
From Houston to London Heathrow
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One-way flight from Houston to London Heathrow
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Highest demand for flights based on searches. 22% potential increase in price ($231 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/3. 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 8/139:50 amIAH - LHR
1 stop14h 05mUnited Airlines
Tue 8/1911:25 amLHR - IAH
1 stop17h 04mUnited Airlines
Deal found 7/3$662
This Cheapflightsfares deal was found by Cheapflights users on 7/3. 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.
Fri 8/159:00 pmIAH - LHR
Nonstop9h 20mBritish Airways
Thu 8/282:50 pmLHR - IAH
Nonstop10h 25mBritish Airways
Deal found 7/3$663
This Cheapflightsfares deal was found by Cheapflights users on 7/3. 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.
Mon 9/152:33 pmHOU - LHR
1 stop12h 27mBritish Airways
Fri 9/2612:00 pmLHR - HOU
1 stop14h 11mBritish Airways
Deal found 7/3$664
This Delta deal was found by Cheapflights users on 7/3. 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 9/2410:44 amHOU - LHR
2 stops16h 06mDelta
Wed 10/19:35 amLHR - HOU
2 stops18h 49mDelta
Deal found 7/3$666
This Iberia deal was found by Cheapflights users on 7/1. 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.
Sat 8/96:30 pmHOU - LHR
1 stop29h 55mIberia
Thu 8/2112:00 pmLHR - HOU
1 stop13h 55mIberia
Deal found 7/1$667
This FlightHub deal was found by Cheapflights users on 7/3. 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 9/1610:00 amIAH - LHR
1 stop17h 35mMultiple Airlines
Tue 9/238:45 amLHR - IAH
2 stops17h 28mMultiple Airlines
Deal found 7/3$668
This Trip.com deal was found by Cheapflights users on 7/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2110:44 amHOU - LHR
1 stop14h 01mVirgin Atlantic
Wed 10/89:20 amLHR - HOU
1 stop13h 07mVirgin Atlantic
Deal found 7/2$668
This Mytrip deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/167:20 amIAH - LHR
2 stops17h 10mAir Canada
Fri 8/296:50 amLHR - IAH
2 stops18h 46mAir Canada
Deal found 7/1$672
This Delta deal was found by Cheapflights users on 7/3. 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 9/24:00 pmIAH - LHR
2 stops15h 45mDelta
Fri 9/126:15 amLHR - IAH
2 stops17h 19mDelta
Deal found 7/3$673
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Fri 8/13:30 pmIAH - LHR
Nonstop9h 10mAmerican Airlines
Fri 8/83:00 pmLHR - IAH
1 stop13h 53mAmerican Airlines
Deal found 7/2$677
This Lufthansa deal was found by Cheapflights users on 7/1. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/103:35 pmIAH - LHR
1 stop13h 05mLufthansa
Mon 8/258:25 pmLHR - IAH
2 stops23h 10mLufthansa
Deal found 7/1$679
This KLM deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:00 pmIAH - LHR
1 stop11h 40mKLM
Fri 11/146:30 amLHR - IAH
1 stop13h 00mKLM
Deal found 6/30$699

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 July 3, 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 8/13

9:50 am-5:55 am

1 stop14h 05m

London Heathrow

Tue 8/19

11:25 am-10:29 pm

1 stop17h 04m

$662

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Fri 8/15

9:00 pm-12:20 pm

Nonstop9h 20m

London Heathrow

Thu 8/28

2:50 pm-7:15 pm

Nonstop10h 25m

$663

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 9/15

2:33 pm-9:00 am

1 stop12h 27m

London Heathrow

Fri 9/26

12:00 pm-8:11 pm

1 stop14h 11m

$664

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 9/24

10:44 am-8:50 am

2 stops16h 06m

London Heathrow

Wed 10/1

9:35 am-10:24 pm

2 stops18h 49m

$666

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Sat 8/9

6:30 pm-6:25 am

1 stop29h 55m

London Heathrow

Thu 8/21

12:00 pm-7:55 pm

1 stop13h 55m

$667

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 9/16

10:00 am-9:35 am

1 stop17h 35m

London Heathrow

Tue 9/23

8:45 am-8:13 pm

2 stops17h 28m

$668

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Sun 9/21

10:44 am-6:45 am

1 stop14h 01m

London Heathrow

Wed 10/8

9:20 am-4:27 pm

1 stop13h 07m

$668

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 7/16

7:20 am-6:30 am

2 stops17h 10m

London Heathrow

Fri 8/29

6:50 am-7:36 pm

2 stops18h 46m

$672

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 9/2

4:00 pm-1:45 pm

2 stops15h 45m

London Heathrow

Fri 9/12

6:15 am-5:34 pm

2 stops17h 19m

$673

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Fri 8/1

3:30 pm-6:40 am

Nonstop9h 10m

London Heathrow

Fri 8/8

3:00 pm-10:53 pm

1 stop13h 53m

$677

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 24 results
1
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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 June 27, 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 78 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 $1,098). 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 July 3, 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.

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

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 July 3, 2025.
Read reviews from past customers who have flown Delta, KLM, and Air France 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.
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,367 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
654 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    United Airlines, at $662, was found to be the cheapest airline from Houston to London Heathrow Airport.Alternate airlines to your destination round-trip include KLM and British Airways. Users have found that United Airlines is 19% 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 $293. However, be on the lookout for offers from Virgin Atlantic and British Airways, 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 $1,098). 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 Houston?

Book flights to Houston if you plan to visit one of these locations
Hounslow
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Gatwick
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Alternative routes for Houston to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$396Average$804FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$563Average$717FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$574Average$746FlexibilityNo cancel feeOn-time67%
FinnairCheapest$581Average$726FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$582Average$783FlexibilityNo cancel feeOn-time72%
LufthansaCheapest$611Average$922FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$616Average$893FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$620Average$904FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$622Average$870FlexibilityNo cancel feeOn-time71%
Austrian AirlinesCheapest$1,125Average$1,343FlexibilityNo cancel feeOn-time78%

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