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$405+ 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LHR
May 6 — May 131
Wed 5/6
Wed 5/13
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 April 6, 2026.

This deal was found by Cheapflights users on 4/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/210:00 am
IAH
-
LHR
1 stop14h 30m
Air Canada
Wed 8/129:30 am
LHR
-
IAH
1 stop16h 08m
Air Canada
Deal found 4/3$693
This deal was found by Cheapflights users on 4/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/210:00 am
IAH
-
LHR
1 stop14h 30m
Air Canada
Thu 8/132:10 pm
LHR
-
IAH
1 stop13h 51m
Air Canada
Deal found 4/3$697
This deal was found by Cheapflights users on 4/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/710:00 am
IAH
-
LHR
1 stop14h 30m
Air Canada
Fri 8/149:30 am
LHR
-
IAH
1 stop16h 08m
Air Canada
Deal found 4/3$731
This deal was found by Cheapflights users on 4/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/611:45 am
IAH
-
LHR
1 stop14h 50m
Air Canada
Fri 8/149:30 am
LHR
-
IAH
1 stop16h 08m
Air Canada
Deal found 4/3$735
This deal was found by Cheapflights users on 4/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/210:00 am
IAH
-
LHR
1 stop14h 30m
Air Canada
Sat 8/159:30 am
LHR
-
IAH
1 stop16h 08m
Air Canada
Deal found 4/3$738
This Justfly.com deal was found by Cheapflights users on 4/5. 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.
Sun 4/269:05 pm
IAH
-
LHR
1 stop18h 00m
Turkish Airlines
Fri 5/156:30 am
LHR
-
IAH
1 stop18h 40m
Turkish Airlines
Deal found 4/5$745
This Justfly.com deal was found by Cheapflights users on 4/6. 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.
Wed 4/159:05 pm
IAH
-
LHR
1 stop18h 00m
Turkish Airlines
Tue 4/216:30 am
LHR
-
IAH
1 stop18h 40m
Turkish Airlines
Deal found 4/6$748
This FlightHub deal was found by Cheapflights users on 4/3. 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 4/149:05 pm
IAH
-
LHR
1 stop36h 55m
Turkish Airlines
Tue 5/56:30 am
LHR
-
IAH
1 stop18h 40m
Turkish Airlines
Deal found 4/3$749
This FlightHub deal was found by Cheapflights users on 4/6. 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.
Wed 4/222:30 pm
IAH
-
LHR
1 stop19h 30m
Turkish Airlines
Fri 6/56:30 pm
LHR
-
IAH
1 stop30h 40m
Turkish Airlines
Deal found 4/6$774
This FlightHub deal was found by Cheapflights users on 4/6. 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.
Wed 11/189:05 pm
IAH
-
LHR
1 stop19h 20m
Turkish Airlines
Wed 11/254:35 pm
LHR
-
IAH
1 stop32h 35m
Turkish Airlines
Deal found 4/6$775
This FlightHub deal was found by Cheapflights users on 4/3. 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.
Wed 11/112:55 pm
IAH
-
LHR
1 stop18h 00m
Turkish Airlines
Tue 11/176:35 am
LHR
-
IAH
1 stop18h 35m
Turkish Airlines
Deal found 4/3$776
This deal was found by Cheapflights users on 4/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/611:45 am
IAH
-
LHR
1 stop15h 50m
Air Canada
Sat 8/159:30 am
LHR
-
IAH
1 stop16h 08m
Air Canada
Deal found 4/3$780

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 April 6, 2026.

Round-trip from

$693

One-way from

$405
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$766
From Houston to London Heathrow
Search Deals
One-way flight from Houston to London Heathrow
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($254 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 6, 2026.
Use the filters below to find and compare flights from Houston to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 5/6

9:35 am-1:20 pm

1 stop21h 45m

London Heathrow

Wed 5/13

6:55 am-4:35 pm

1 stop15h 40m

$856

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 4/21

11:50 am-10:00 am

1 stop16h 10m

London Heathrow

Wed 4/29

7:25 am-4:35 pm

1 stop15h 10m

$859

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 9/7

9:40 am-7:15 am

1 stop15h 35m

London Heathrow

Tue 9/22

6:30 am-1:15 pm

1 stop12h 45m

$860

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Sun 4/19

1:31 pm-7:15 am

1 stop11h 44m

London Heathrow

Tue 5/5

9:55 am-11:07 pm

2 stops19h 12m

$870

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 5/4

1:31 pm-7:15 am

1 stop11h 44m

London Heathrow

Tue 5/12

9:55 am-10:26 pm

2 stops18h 31m

$870

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 5/3

4:20 pm-7:45 am

Nonstop9h 25m

London Heathrow

Fri 5/22

9:30 am-7:59 pm

1 stop16h 29m

$887

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 5/13

10:27 am-1:15 pm

1 stop20h 48m

London Heathrow

Wed 5/20

11:15 am-10:26 pm

1 stop17h 11m

$898

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 9/23

12:55 pm-6:45 am

1 stop11h 50m

London Heathrow

Thu 12/17

1:00 pm-11:58 pm

2 stops16h 58m

$903

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 5/4

5:23 pm-11:20 am

1 stop11h 57m

London Heathrow

Thu 5/21

12:25 pm-10:26 pm

2 stops16h 01m

$903

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 5/4

4:20 pm-7:45 am

Nonstop9h 25m

London Heathrow

Mon 5/11

7:25 am-4:35 pm

1 stop15h 10m

$905

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/6

Showing 1-10 of 42 resultsSorted by cheapest first
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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 April 3, 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 $502). Flying from Houston to London Heathrow Airport in June is currently the most expensive (average of $874). 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 6, 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 much does it cost to fly round-trip from Houston to London Heathrow Airport?

How often are flights from Houston to London delayed?

About 22% of weekly flights between Houston and London have experienced delays in the past year, with the average delay time being 141 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 16% 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 April 6, 2026.
Read reviews from past customers who have flown Finnair,United Airlines, andAmerican 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
7.7
Good
1,379 reviews

Crew

8.2

Comfort

7.5

Entertainment

6.9

Overall

7.7

Boarding

7.7

Food

6.7

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
7.7
Good
1,379 reviews
Finnair
7.7
Good
1,379 reviews

Crew

8.2

Comfort

7.5

Entertainment

6.9

Overall

7.7

Boarding

7.7

Food

6.7

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
9,546 reviews
Finnair
7.7
Good
1,379 reviews

Crew

8.2

Comfort

7.5

Entertainment

6.9

Overall

7.7

Boarding

7.7

Food

6.7

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
7.1
Good
11,550 reviews
Finnair
7.7
Good
1,379 reviews

Crew

8.2

Comfort

7.5

Entertainment

6.9

Overall

7.7

Boarding

7.7

Food

6.7

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
3,163 reviews
Finnair
7.7
Good
1,379 reviews

Crew

8.2

Comfort

7.5

Entertainment

6.9

Overall

7.7

Boarding

7.7

Food

6.7

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
7,857 reviews
Finnair
7.7
Good
1,379 reviews

Crew

8.2

Comfort

7.5

Entertainment

6.9

Overall

7.7

Boarding

7.7

Food

6.7

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?

    United Airlines, Delta, and Virgin Atlantic can get you from Houston to London Heathrow Airport in just under 11h 44m. Your travel time can differ by up to 10h 01m. Airlines will cover a distance of 4835 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 United Airlines, with whom users have recently found tickets for as low as $362. However, be on the lookout for offers from Lufthansa 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 $502). Flying from Houston to London Heathrow Airport in June is currently the most expensive (average of $874). 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
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Northampton
Borehamwood
Broadway
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Sutton

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 April 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$268FlexibilityNo cancel feeOn-time62%
Virgin AtlanticCheapest$497Average$691FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$521Average$892FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$522Average$794FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$525Average$868FlexibilityNo cancel feeOn-time69%
FinnairCheapest$540Average$881FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$540Average$810FlexibilityNo cancel feeOn-time70%
IberiaCheapest$583Average$839FlexibilityNo cancel feeOn-time77%
DeltaCheapest$607Average$1,112FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$689Average$1,058FlexibilityNo cancel feeOn-time76%

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