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$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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LHR
Dec 24 — Dec 311
Wed 12/24
Wed 12/31
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 74 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 November 24, 2025.

Round-trip from

$622
(Delta)

One-way from

$376
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$771
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. 18% potential increase in price ($195 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 24, 2025.

This lastminute.com deal was found by Cheapflights users on 11/23. 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.
Sun 12/712:10 pmIAH - LHR
2 stops26h 25mMultiple Airlines
Tue 12/231:35 pmLHR - IAH
1 stop15h 37mMultiple Airlines
Deal found 11/23$623
This Cheapflightsfares deal was found by Cheapflights users on 11/23. 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 12/89:45 pmIAH - LHR
Nonstop9h 00mBritish Airways
Wed 12/249:35 amLHR - IAH
Nonstop10h 30mBritish Airways
Deal found 11/23$624
This Cheapflightsfares deal was found by Cheapflights users on 11/23. 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 12/812:11 pmIAH - LHR
1 stop12h 39mIberia
Wed 12/249:35 amLHR - IAH
Nonstop10h 30mIberia
Deal found 11/23$628
This Kiwi.com deal was found by Cheapflights users on 11/23. 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.
Mon 12/296:40 pmIAH - LHR
1 stop29h 15mMultiple Airlines
Thu 1/88:00 amLHR - IAH
1 stop16h 46mMultiple Airlines
Deal found 11/23$631
This Kiwi.com deal was found by Cheapflights users on 11/23. 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.
Mon 12/1511:57 amIAH - LHR
1 stop11h 58mMultiple Airlines
Wed 12/241:35 pmLHR - IAH
1 stop15h 37mMultiple Airlines
Deal found 11/23$633
This Kiwi.com deal was found by Cheapflights users on 11/23. 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 12/25:00 pmIAH - LHR
1 stop12h 15mLufthansa
Wed 12/108:15 pmLHR - IAH
1 stop26h 15mLufthansa
Deal found 11/23$634
This Kiwi.com deal was found by Cheapflights users on 11/23. 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 12/211:57 amIAH - LHR
1 stop13h 58mBrussels Airlines
Wed 12/1011:05 amLHR - IAH
2 stops37h 50mBrussels Airlines
Deal found 11/23$635
This Billigflug deal was found by Cheapflights users on 11/23. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:05 pmIAH - LHR
Nonstop9h 10mAir Canada
Tue 12/2312:05 pmLHR - IAH
Nonstop10h 45mAir Canada
Deal found 11/23$636
This United Airlines deal was found by Cheapflights users on 11/23. 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 12/74:20 pmIAH - LHR
Nonstop9h 10mUnited Airlines
Tue 12/2310:00 amLHR - IAH
Nonstop10h 45mUnited Airlines
Deal found 11/23$637
This United Airlines deal was found by Cheapflights users on 11/23. 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.
Tue 12/3011:55 amIAH - LHR
1 stop12h 00mUnited Airlines
Fri 1/912:05 pmLHR - IAH
Nonstop10h 45mUnited Airlines
Deal found 11/23$641
This Justfly.com deal was found by Cheapflights users on 11/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2912:30 pmIAH - LHR
2 stops26h 05mAir Canada
Fri 1/306:50 amLHR - IAH
2 stops20h 49mAir Canada
Deal found 11/22$642
This Expedia deal was found by Cheapflights users on 11/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:29 pmHOU - LHR
1 stop11h 46mBritish Airways
Tue 12/238:20 amLHR - HOU
1 stop13h 29mBritish Airways
Deal found 11/22$644

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 November 24, 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

Mon 3/9

11:39 am-8:45 am

1 stop16h 06m

London Heathrow

Mon 3/23

8:25 pm-2:30 pm

1 stop23h 05m

$622

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 2/25

7:05 pm-10:15 am

Nonstop9h 10m

London Heathrow

Wed 3/11

7:30 am-7:15 pm

1 stop16h 45m

$626

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 3/16

4:00 pm-9:40 pm

2 stops24h 40m

London Heathrow

Thu 3/19

6:40 am-11:59 pm

2 stops22h 19m

$627

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 2/9

9:54 am-4:25 pm

3 stops24h 31m

London Heathrow

Mon 2/16

6:40 am-11:37 pm

2 stops22h 57m

$630

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 1/12

5:45 am-6:20 am

2 stops18h 35m

London Heathrow

Tue 1/27

8:40 am-10:33 pm

2 stops19h 53m

$637

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 2/9

4:05 pm-10:30 am

1 stop12h 25m

London Heathrow

Mon 2/16

5:35 pm-1:55 pm

1 stop26h 20m

$641

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 4/21

8:05 pm-11:35 am

Nonstop9h 30m

London Heathrow

Wed 4/29

9:30 am-6:00 pm

1 stop14h 30m

$642

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 1/12

2:41 pm-8:35 am

1 stop11h 54m

London Heathrow

Tue 1/27

9:35 am-2:05 pm

Nonstop10h 30m

$644

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 1/7

7:05 pm-10:15 am

Nonstop9h 10m

London Heathrow

Mon 1/12

3:30 pm-6:15 pm

1 stop32h 45m

$645

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 3/3

7:05 pm-10:15 am

Nonstop9h 10m

London Heathrow

Thu 3/12

10:00 am-3:45 pm

Nonstop10h 45m

$645

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/22

Showing 1-10 of 42 results
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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 November 21, 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 $861). 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 November 24, 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 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 145 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 Friday 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

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

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 November 24, 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
1,334 reviews

Boarding

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Overall

7.6

Crew

8.1

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
1,334 reviews
Finnair
7.6
Good
1,334 reviews

Boarding

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Overall

7.6

Crew

8.1

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
9,041 reviews
Finnair
7.6
Good
1,334 reviews

Boarding

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Overall

7.6

Crew

8.1

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
11,040 reviews
Finnair
7.6
Good
1,334 reviews

Boarding

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Overall

7.6

Crew

8.1

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
3,033 reviews
Finnair
7.6
Good
1,334 reviews

Boarding

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Overall

7.6

Crew

8.1

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
7,535 reviews
Finnair
7.6
Good
1,334 reviews

Boarding

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Overall

7.6

Crew

8.1

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, United Airlines, and Scandinavian Airlines can get you from Houston to London Heathrow Airport in just under 9h 10m. Your travel time can differ by up to 15h 30m. 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 British Airways, with whom users have recently found tickets for as low as $384. However, be on the lookout for offers from Austrian Airlines and Scandinavian 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 $861). 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
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

Browse thousands of different options on Cheapflights for your next trip

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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 November 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$783FlexibilityNo cancel feeOn-time62%
Virgin AtlanticCheapest$476Average$822FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$521Average$727FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$522Average$833FlexibilityNo cancel feeOn-time71%
FinnairCheapest$553Average$742FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$564Average$894FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$566Average$875FlexibilityNo cancel feeOn-time70%
IberiaCheapest$580Average$759FlexibilityNo cancel feeOn-time77%
DeltaCheapest$631Average$1,049FlexibilityNo cancel feeOn-timeN/A
Austrian AirlinesCheapest$644Average$1,294FlexibilityNo cancel feeOn-time78%

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