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$365+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LHR
Apr 27 — May 41
Sun 4/27
Sun 5/4
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 33 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 April 22, 2025.

Round-trip from

$637
(Trip.com)

One-way from

$365
(Booking.com)

Popular in

June

Cheapest in

February

Average price

$683
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 ($236 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 April 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 April 22, 2025.

This Trip.com deal was found by Cheapflights users on 4/21. 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.
Wed 5/73:35 pmIAH - LHR
1 stop13h 05mLufthansa
Thu 5/157:30 pmLHR - IAH
1 stop24h 05mLufthansa
Deal found 4/21$637
This World Air Fares deal was found by Cheapflights users on 4/21. 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 World Air Fares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/74:20 pmIAH - LHR
Nonstop9h 20mMultiple Airlines
Fri 9/266:00 amLHR - IAH
2 stops19h 45mMultiple Airlines
Deal found 4/21$640
This Gotogate deal was found by Cheapflights users on 4/21. 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 5/512:05 pmIAH - LHR
1 stop17h 45mAir Canada
Tue 5/209:30 amLHR - IAH
1 stop16h 26mAir Canada
Deal found 4/21$643
This lastminute.com deal was found by Cheapflights users on 4/21. 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 5/56:38 pmIAH - LHR
1 stop12h 32mVirgin Atlantic
Tue 5/206:30 amLHR - IAH
1 stop12h 45mVirgin Atlantic
Deal found 4/21$644
This Cheapflightsfares deal was found by Cheapflights users on 4/21. 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 10/73:30 pmIAH - LHR
Nonstop9h 10mBritish Airways
Wed 10/229:25 amLHR - IAH
Nonstop10h 20mBritish Airways
Deal found 4/21$653
This Cheapflightsfares deal was found by Cheapflights users on 4/22. 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.
Wed 9/249:00 pmIAH - LHR
Nonstop9h 20mIberia
Wed 10/89:25 amLHR - IAH
Nonstop10h 20mIberia
Deal found 4/22$654
This StudentUniverse deal was found by Cheapflights users on 4/22. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/233:30 pmIAH - LHR
Nonstop9h 10mFinnair
Tue 10/76:10 pmLHR - IAH
2 stops29h 31mFinnair
Deal found 4/22$656
This United Airlines deal was found by Cheapflights users on 4/21. 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 5/78:10 pmIAH - LHR
Nonstop9h 25mUnited Airlines
Thu 5/157:25 amLHR - IAH
1 stop15h 10mUnited Airlines
Deal found 4/21$665
This lastminute.com deal was found by Cheapflights users on 4/21. 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 5/51:16 pmHOU - LHR
1 stop11h 29mVirgin Atlantic
Tue 5/209:20 amLHR - HOU
1 stop14h 37mVirgin Atlantic
Deal found 4/21$666
This Cheapflightsfares deal was found by Cheapflights users on 4/21. 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.
Wed 9/248:20 pmHOU - LHR
1 stop12h 05mBritish Airways
Wed 10/110:30 amLHR - HOU
1 stop13h 19mBritish Airways
Deal found 4/21$667
This Delta deal was found by Cheapflights users on 4/21. 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.
Mon 5/57:05 amIAH - LHR
1 stop18h 10mDelta
Tue 5/206:30 amLHR - IAH
1 stop12h 45mDelta
Deal found 4/21$669
This KLM deal was found by Cheapflights users on 4/21. 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 5/126:40 pmIAH - LHR
1 stop12h 50mKLM
Thu 5/226:30 amLHR - IAH
1 stop12h 45mKLM
Deal found 4/21$671

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 April 22, 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 5/7

3:35 pm-10:40 am

1 stop13h 05m

London Heathrow

Thu 5/15

7:30 pm-1:35 pm

1 stop24h 05m

$637

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 9/7

4:20 pm-7:40 am

Nonstop9h 20m

London Heathrow

Fri 9/26

6:00 am-7:45 pm

2 stops19h 45m

$640

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 5/5

12:05 pm-11:50 am

1 stop17h 45m

London Heathrow

Tue 5/20

9:30 am-7:56 pm

1 stop16h 26m

$643

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 5/5

6:38 pm-1:10 pm

1 stop12h 32m

London Heathrow

Tue 5/20

6:30 am-1:15 pm

1 stop12h 45m

$644

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 10/7

3:30 pm-6:40 am

Nonstop9h 10m

London Heathrow

Wed 10/22

9:25 am-1:45 pm

Nonstop10h 20m

$653

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 9/24

9:00 pm-12:20 pm

Nonstop9h 20m

London Heathrow

Wed 10/8

9:25 am-1:45 pm

Nonstop10h 20m

$654

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 9/23

3:30 pm-6:40 am

Nonstop9h 10m

London Heathrow

Tue 10/7

6:10 pm-5:41 pm

2 stops29h 31m

$656

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 5/7

8:10 pm-11:35 am

Nonstop9h 25m

London Heathrow

Thu 5/15

7:25 am-4:35 pm

1 stop15h 10m

$665

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 5/5

1:16 pm-6:45 am

1 stop11h 29m

London Heathrow

Tue 5/20

9:20 am-5:57 pm

1 stop14h 37m

$666

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 9/24

8:20 pm-2:25 pm

1 stop12h 05m

London Heathrow

Wed 10/1

10:30 am-5:49 pm

1 stop13h 19m

$667

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 41 results
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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 the IAH Depart tab for current security wait times at all terminals to plan your arrival accordingly.

Read more about IAHby Evie Carrick
LHR

Take the Heathrow Express for the fastest route to central London, arriving at Paddington Station.

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 April 18, 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 33 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 $1,110). 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 April 22, 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 June 9, 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.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 April 22, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Houston to London. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,331 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,272 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,441 reviews
Delta
8.0
Very good
7,920 reviews

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    Lufthansa, at $637, was found to be the cheapest airline from Houston to London Heathrow Airport.Alternate airlines to your destination round-trip include Air Canada and Virgin Atlantic. Users have found that Lufthansa is 22% 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 Iberia, with whom users have recently found tickets for as low as $390. However, be on the lookout for offers from Lufthansa and Aer Lingus, 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 $1,110). 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
Hayes
Hounslow
Thornton Heath
Luton
Horley
Canterbury
Harrow
Wembley
Dover
Stratford-upon-Avon
Gatwick
Orpington
Watford
Northampton
Croydon
Borehamwood
Folkestone
Ilford
Broadway
Aylesbury

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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 April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$563Average$705FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$568Average$744FlexibilityNo cancel feeOn-time67%
Virgin AtlanticCheapest$578Average$706FlexibilityNo cancel feeOn-time72%
FinnairCheapest$582Average$708FlexibilityNo cancel feeOn-time76%
DeltaCheapest$596Average$838FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$604Average$897FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$611Average$923FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$611Average$1,124FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$622Average$916FlexibilityNo cancel feeOn-time71%
Austrian AirlinesCheapest$957Average$1,374FlexibilityNo cancel feeOn-time78%

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