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$331+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LHR
Mar 18 — Mar 251
Wed 3/18
Wed 3/25
1 adult, Economy
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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 February 16, 2026.

This Air Canada deal was found by Cheapflights users on 2/12. 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.
Mon 3/25:25 pm
IAH
-
LHR
1 stop36h 25m
Air Canada
Tue 3/176:50 am
LHR
-
IAH
2 stops19h 49m
Air Canada
Deal found 2/12$629
This Virgin Atlantic deal was found by Cheapflights users on 2/15. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/112:15 pm
IAH
-
LHR
1 stop14h 30m
Virgin Atlantic
Tue 3/318:55 pm
LHR
-
IAH
1 stop22h 20m
Virgin Atlantic
Deal found 2/15$630
This KLM deal was found by Cheapflights users on 2/12. 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.
Wed 3/43:08 pm
IAH
-
LHR
1 stop11h 37m
KLM
Wed 3/186:30 am
LHR
-
IAH
1 stop13h 00m
KLM
Deal found 2/12$631
This Air Canada deal was found by Cheapflights users on 2/12. 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 3/412:10 pm
IAH
-
LHR
2 stops15h 10m
Air Canada
Thu 3/196:50 am
LHR
-
IAH
2 stops19h 49m
Air Canada
Deal found 2/12$632
This United Airlines deal was found by Cheapflights users on 2/13. 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.
Sun 2/157:05 pm
IAH
-
LHR
Nonstop9h 10m
United Airlines
Sat 2/214:40 pm
LHR
-
IAH
1 stop29h 50m
United Airlines
Deal found 2/13$636
This United Airlines deal was found by Cheapflights users on 2/12. 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 3/47:05 pm
IAH
-
LHR
Nonstop9h 10m
United Airlines
Thu 3/196:35 am
LHR
-
IAH
1 stop15h 55m
United Airlines
Deal found 2/12$637
This Gotogate deal was found by Cheapflights users on 2/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/1512:10 pm
IAH
-
LHR
2 stops26h 25m
Air Canada
Sat 2/289:00 am
LHR
-
IAH
2 stops42h 39m
Air Canada
Deal found 2/14$638
This Air Canada deal was found by Cheapflights users on 2/12. 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 3/36:19 pm
IAH
-
LHR
2 stops30h 51m
Air Canada
Wed 3/186:50 am
LHR
-
IAH
2 stops19h 49m
Air Canada
Deal found 2/12$640
This Delta deal was found by Cheapflights users on 2/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1712:40 pm
IAH
-
LHR
2 stops15h 20m
Delta
Tue 3/316:30 am
LHR
-
IAH
1 stop12h 45m
Delta
Deal found 2/13$641
This Delta deal was found by Cheapflights users on 2/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/45:25 am
HOU
-
LHR
1 stop19h 00m
Delta
Tue 3/106:30 am
LHR
-
HOU
2 stops21h 12m
Delta
Deal found 2/13$641
This United Airlines deal was found by Cheapflights users on 2/12. 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.
Fri 2/137:05 pm
IAH
-
LHR
Nonstop9h 10m
United Airlines
Tue 2/171:25 pm
LHR
-
IAH
2 stops37h 58m
United Airlines
Deal found 2/12$644
This oojo deal was found by Cheapflights users on 2/16. 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.
Mon 11/212:15 pm
HOU
-
LHR
1 stop14h 00m
British Airways
Mon 11/96:10 pm
LHR
-
HOU
2 stops31h 40m
British Airways
Deal found 2/16$646

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 February 16, 2026.

Round-trip from

$627
(Trip.com)

One-way from

$331
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$698
From Houston to London Heathrow
Search Deals
One-way flight from Houston to London Heathrow
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($219 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 16, 2026.
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 3/4

3:08 pm-8:45 am

1 stop11h 37m

London Heathrow

Tue 3/10

6:30 am-2:30 pm

1 stop13h 00m

$631

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 3/4

7:05 am-6:25 am

1 stop17h 20m

London Heathrow

Thu 3/19

6:30 am-2:30 pm

1 stop13h 00m

$631

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 3/4

4:20 pm-7:30 am

Nonstop9h 10m

London Heathrow

Tue 3/10

8:30 am-7:15 pm

1 stop15h 45m

$637

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 4/15

5:00 pm-1:15 pm

1 stop14h 15m

London Heathrow

Wed 4/22

6:30 am-1:15 pm

1 stop12h 45m

$646

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 4/22

12:38 pm-7:15 am

1 stop12h 37m

London Heathrow

Wed 5/6

8:55 pm-1:15 pm

1 stop22h 20m

$646

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 4/20

10:00 am-6:20 am

1 stop14h 20m

London Heathrow

Wed 4/29

6:30 am-1:15 pm

1 stop12h 45m

$647

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 4/13

12:38 pm-10:20 am

1 stop15h 42m

London Heathrow

Mon 4/20

7:15 pm-1:15 pm

1 stop24h 00m

$647

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Tue 3/17

11:33 am-11:40 am

1 stop19h 07m

London Heathrow

Tue 3/31

8:55 am-10:42 pm

2 stops19h 47m

$647

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 3/31

6:09 pm-1:05 pm

1 stop12h 56m

London Heathrow

Fri 5/1

6:15 am-1:35 pm

1 stop13h 20m

$653

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 5/13

12:40 pm-7:15 am

1 stop12h 35m

London Heathrow

Wed 5/20

6:30 am-5:50 pm

2 stops17h 20m

$656

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

Showing 1-10 of 43 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 February 13, 2026.

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 $506). Flying from Houston to London Heathrow Airport in June is currently the most expensive (average of $851). 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 February 16, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Houston to London Heathrow Airport as you normally would.

How often are flights from Houston to London delayed?

About 25% of weekly flights between Houston and London have experienced delays in the past year, with the average delay time being 148 minutes.

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

Historically, flights departing at night 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 17% 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
Our travel experts
Evie Carrick

Evie Carrick

Expert on IAH

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

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 February 16, 2026.
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
1,362 reviews

Comfort

7.4

Entertainment

6.9

Overall

7.6

Food

6.7

Crew

8.2

Boarding

7.7

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
1,362 reviews
Finnair
7.6
Good
1,362 reviews

Comfort

7.4

Entertainment

6.9

Overall

7.6

Food

6.7

Crew

8.2

Boarding

7.7

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
9,299 reviews
Finnair
7.6
Good
1,362 reviews

Comfort

7.4

Entertainment

6.9

Overall

7.6

Food

6.7

Crew

8.2

Boarding

7.7

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
11,291 reviews
Finnair
7.6
Good
1,362 reviews

Comfort

7.4

Entertainment

6.9

Overall

7.6

Food

6.7

Crew

8.2

Boarding

7.7

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
3,116 reviews
Finnair
7.6
Good
1,362 reviews

Comfort

7.4

Entertainment

6.9

Overall

7.6

Food

6.7

Crew

8.2

Boarding

7.7

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
7,750 reviews
Finnair
7.6
Good
1,362 reviews

Comfort

7.4

Entertainment

6.9

Overall

7.6

Food

6.7

Crew

8.2

Boarding

7.7

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?

    Delta, United Airlines, and Virgin Atlantic can get you from Houston to London Heathrow Airport in just under 9h 10m. Your travel time can differ by up to 5h 05m. 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 Lufthansa, with whom users have recently found tickets for as low as $296. However, be on the lookout for offers from United Airlines 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, October is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of $506). Flying from Houston to London Heathrow Airport in June is currently the most expensive (average of $851). 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
Croydon
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

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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 February 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$783FlexibilityNo cancel feeOn-time62%
Virgin AtlanticCheapest$497Average$769FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$521Average$892FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$522Average$823FlexibilityNo cancel feeOn-time71%
FinnairCheapest$540Average$792FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$550Average$842FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$555Average$886FlexibilityNo cancel feeOn-time69%
IberiaCheapest$581Average$807FlexibilityNo cancel feeOn-time77%
DeltaCheapest$607Average$1,091FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$689Average$1,046FlexibilityNo cancel feeOn-time76%

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