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$367+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LHR
May 4 — May 111
Sun 5/4
Sun 5/11
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 29, 2025.

Round-trip from

$644
(Gotogate)

One-way from

$367
(Kiwi.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 ($233 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 29, 2025.

This Gotogate deal was found by Cheapflights users on 4/29. 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.
Tue 9/210:00 amIAH - LHR
1 stop17h 35mMultiple Airlines
Wed 9/176:50 amLHR - IAH
2 stops18h 52mMultiple Airlines
Deal found 4/29$644
This Expedia deal was found by Cheapflights users on 4/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/136:29 pmIAH - LHR
1 stop13h 56mIberia
Tue 5/207:10 pmLHR - IAH
2 stops31h 53mIberia
Deal found 4/29$645
This StudentUniverse deal was found by Cheapflights users on 4/29. 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 8/52:29 pmIAH - LHR
1 stop12h 31mFinnair
Tue 8/126:10 pmLHR - IAH
2 stops29h 46mFinnair
Deal found 4/29$651
This Expedia deal was found by Cheapflights users on 4/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/92:25 pmHOU - LHR
1 stop12h 35mIberia
Tue 9/304:25 pmLHR - HOU
1 stop13h 22mIberia
Deal found 4/29$656
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 9/241:13 pmIAH - LHR
1 stop11h 37mBritish Airways
Wed 10/82:50 pmLHR - IAH
Nonstop10h 25mBritish Airways
Deal found 4/28$658
This United Airlines deal was found by Cheapflights users on 4/28. 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 8/2710:00 amIAH - LHR
1 stop14h 30mUnited Airlines
Thu 9/47:25 amLHR - IAH
1 stop15h 10mUnited Airlines
Deal found 4/28$666
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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
Tue 9/308:20 amLHR - HOU
1 stop13h 37mBritish Airways
Deal found 4/28$668
This Delta deal was found by Cheapflights users on 4/29. 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.
Sat 9/206:25 pmIAH - LHR
1 stop32h 30mDelta
Sun 9/2810:55 amLHR - IAH
1 stop16h 41mDelta
Deal found 4/29$671
This lol.travel deal was found by Cheapflights users on 4/28. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/123:50 pmIAH - LHR
1 stop15h 55mVirgin Atlantic
Tue 5/276:15 amLHR - IAH
1 stop13h 20mVirgin Atlantic
Deal found 4/28$680
This Delta deal was found by Cheapflights users on 4/28. 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 10/264:20 pmHOU - LHR
1 stop14h 20mDelta
Wed 11/56:30 amLHR - HOU
2 stops21h 10mDelta
Deal found 4/28$682
This Air Canada deal was found by Cheapflights users on 4/28. 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.
Wed 8/277:20 amIAH - LHR
2 stops20h 40mAir Canada
Tue 9/96:50 amLHR - IAH
2 stops17h 44mAir Canada
Deal found 4/28$683
This Air France deal was found by Cheapflights users on 4/28. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/231:00 pmHOU - LHR
1 stop11h 45mMultiple Airlines
Tue 9/309:20 amLHR - HOU
1 stop14h 27mMultiple Airlines
Deal found 4/28$696

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 29, 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 9/2

10:00 am-9:35 am

1 stop17h 35m

London Heathrow

Wed 9/17

6:50 am-7:42 pm

2 stops18h 52m

$644

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 5/13

6:29 pm-2:25 pm

1 stop13h 56m

London Heathrow

Tue 5/20

7:10 pm-9:03 pm

2 stops31h 53m

$645

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 8/5

2:29 pm-9:00 am

1 stop12h 31m

London Heathrow

Tue 8/12

6:10 pm-5:56 pm

2 stops29h 46m

$651

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 9/24

1:13 pm-6:50 am

1 stop11h 37m

London Heathrow

Wed 10/8

2:50 pm-7:15 pm

Nonstop10h 25m

$658

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 8/27

10:00 am-6:30 am

1 stop14h 30m

London Heathrow

Wed 9/3

7:25 am-4:35 pm

1 stop15h 10m

$666

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sat 9/20

6:25 pm-8:55 am

1 stop32h 30m

London Heathrow

Sun 9/28

10:55 am-9:36 pm

1 stop16h 41m

$671

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 5/12

3:50 pm-1:45 pm

1 stop15h 55m

London Heathrow

Tue 5/27

6:15 am-1:35 pm

1 stop13h 20m

$680

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 8/27

7:20 am-10:00 am

2 stops20h 40m

London Heathrow

Tue 9/9

6:50 am-6:34 pm

2 stops17h 44m

$683

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 5/12

8:16 pm-2:25 pm

1 stop12h 09m

London Heathrow

Mon 5/19

7:30 pm-6:01 pm

2 stops28h 31m

$689

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Tue 5/13

6:42 pm-1:30 pm

1 stop12h 48m

London Heathrow

Tue 5/20

9:20 am-5:57 pm

1 stop14h 37m

$696

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 37 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 25, 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 29, 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 29, 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
7,929 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

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
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

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
1,275 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

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
7,929 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

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
1,446 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

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?

    Iberia, at $645, was found to be the cheapest airline from Houston to London Heathrow Airport.Alternate airlines to your destination round-trip include Finnair and British Airways. Users have found that Iberia is 21% 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 Air Canada, with whom users have recently found tickets for as low as $393. However, be on the lookout for offers from Iberia 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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$564Average$705FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$568Average$744FlexibilityNo cancel feeOn-time67%
Virgin AtlanticCheapest$578Average$721FlexibilityNo cancel feeOn-time72%
FinnairCheapest$582Average$708FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$605Average$895FlexibilityNo cancel feeOn-time70%
DeltaCheapest$610Average$838FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$611Average$919FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$612Average$1,125FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$634Average$915FlexibilityNo cancel feeOn-time71%
Austrian AirlinesCheapest$957Average$1,374FlexibilityNo cancel feeOn-time78%

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