How long is the flight from Houston to London Heathrow Airport?

Departing from Houston to London Heathrow Airport will take you 9h 20m. Airlines will cover a distance of 4820 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from Houston to London Heathrow Airport round-trip?

Cheapflights users have booked flights from Houston to London Heathrow Airport round-trip from £429. Other airlines that can offer you cheap pricing are United Airlines, from £438, and Virgin Atlantic, from £441. These flights start at 37% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Houston to London Heathrow Airport one-way?

The cheapet airlines for a one-way flight from Houston to London Heathrow Airport are United Airlines (£210), British Airways (£282), and Lufthansa (£298).

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular airlines that fly from Houston to London Heathrow Airport?

The most popular airlines flying from Houston to London Heathrow Airport are British Airways, United Airlines and Virgin Atlantic. Something to consider prior to booking your flight.

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 holiday 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.

£243+ Cheap Flights from Houston to London Heathrow Airport

Cheap flight deals from Houston to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 10 September 2026.

Wed 16/1208:10 -

2 stops17h 05m

Wed 6/111:45 -

1 stop31h 25m

Deal found 9/9£644

Fri 16/1010:00 -

2 stops16h 35m

Mon 19/1008:30 -

2 stops17h 22m

Deal found 9/9£644

Thu 15/1015:35 -

2 stops18h 05m

Mon 19/1017:50 -

2 stops25h 45m

Deal found 10/9£645

Thu 1/1010:00 -

2 stops16h 35m

Sat 10/1014:05 -

2 stops16h 32m

Deal found 10/9£646

Wed 7/1012:25 -

2 stops16h 45m

Sat 17/1008:50 -

2 stops21h 09m

Deal found 9/9£646

Wed 16/1207:05 -

1 stop18h 10m

Thu 7/108:40 -

2 stops18h 58m

Deal found 9/9£647

Wed 16/1211:55 -

1 stop14h 35m

Fri 8/112:05 -

Nonstop10h 45m

Deal found 9/9£648

Tue 24/1106:00 -

1 stop19h 50m

Mon 30/1106:30 -

2 stops22h 51m

Deal found 9/9£648

Wed 7/1010:00 -

1 stop14h 30m

Wed 14/1008:40 -

2 stops17h 12m

Deal found 9/9£649

Fri 2/1018:19 -

1 stop12h 31m

Mon 12/1016:25 -

1 stop13h 24m

Deal found 9/9£649

Thu 17/910:00 -

2 stops19h 50m

Sun 27/917:55 -

2 stops31h 57m

Deal found 9/9£649

Wed 16/1211:55 -

1 stop14h 35m

Thu 7/113:00 -

1 stop14h 34m

Deal found 9/9£650

Best flights from Houston to Heathrow
Discover carefully curated flight deals from Houston to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Mon 5/1020:15 -

Nonstop9h 20m

Wed 21/1010:00 -

Nonstop10h 15m

Deal found 7/9£665

Wed 7/1011:12 -

1 stop14h 03m

Thu 22/1011:15 -

1 stop17h 48m

Deal found 7/9£670

Mon 28/914:44 -

2 stops24h 56m

Mon 5/1006:40 -

2 stops23h 14m

Deal found 8/9£776

Fri 16/1015:30 -

Nonstop9h 10m

Tue 27/1009:35 -

Nonstop10h 30m

Deal found 6/9£781

Fri 16/1015:30 -

Nonstop9h 10m

Mon 19/1014:45 -

1 stop15h 51m

Deal found 9/9£793

Mon 2/1109:45 -

3 stops19h 05m

Sun 8/1120:35 -

2 stops33h 20m

Deal found 8/9£798

Mon 9/1112:08 -

2 stops23h 22m

Wed 18/1108:15 -

3 stops30h 09m

Deal found 9/9£801

Tue 6/1011:12 -

2 stops17h 28m

Mon 12/1010:55 -

2 stops18h 08m

Deal found 6/9£804

Sun 18/1016:25 -

Nonstop9h 20m

Sun 1/1107:30 -

1 stop16h 45m

Deal found 7/9£689

Thu 3/1217:27 -

1 stop12h 13m

Wed 9/1206:30 -

2 stops16h 00m

Deal found 7/9£691

Mon 5/1020:15 -

Nonstop9h 20m

Sun 18/1009:30 -

1 stop16h 22m

Deal found 5/9£707

Fri 16/1015:09 -

1 stop16h 06m

Mon 19/1009:55 -

2 stops19h 08m

Deal found 6/9£728

Mon 12/1021:10 -

Nonstop9h 15m

Sun 18/1009:10 -

Nonstop10h 15m

Deal found 6/9£811

Sat 6/306:00 -

1 stop19h 50m

Sat 13/311:15 -

2 stops27h 34m

Deal found 5/9£770

Mon 5/1014:53 -

3 stops20h 52m

Wed 21/1011:20 -

2 stops29h 17m

Deal found 5/9£933

Wed 16/916:25 -

Nonstop9h 20m

Thu 24/909:30 -

1 stop14h 20m

Deal found 7/9£828

Tue 24/1106:00 -

2 stops18h 20m

Mon 30/1116:00 -

1 stop13h 21m

Deal found 6/9£782

Mon 5/1017:20 -

1 stop13h 55m

Sun 18/1011:15 -

1 stop17h 48m

Deal found 6/9£801

Wed 16/912:21 -

2 stops16h 09m

Thu 24/906:30 -

1 stop12h 50m

Deal found 8/9£827

Mon 21/914:25 -

1 stop16h 50m

Wed 30/909:55 -

2 stops18h 44m

Deal found 5/9£831

Wed 30/912:21 -

2 stops16h 09m

Sun 11/1006:30 -

1 stop12h 50m

Deal found 5/9£864

Find flight deals from Houston to Heathrow

Round-trip from	£644
One-way from	£243
Popular in	June
Cheapest in	January
Average price	£734

Delta
16/12-6/1
3 total stops
48h 30m total
Houston to London

Search Deals

JetBlue
6/12-31/12
1 total stop
16h 00m total
Houston to London

Search Deals

Highest demand for flights based on searches. 20% potential increase in price (£132 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

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 return flight

HoustonLondon

IAH Houston George Bush Intcntl - LHR London Heathrow

IAHLHR

Houston George Bush Intcntl

Sun 6/12

11:30-09:30

1 stop16h 00m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£243

HoustonLondon

IAH Houston George Bush Intcntl - LHR London Heathrow

IAHLHR

Houston George Bush Intcntl

Tue 6/10

12:00-09:30

1 stop15h 30m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£243

HoustonLondon

IAH Houston George Bush Intcntl - LHR London Heathrow

IAHLHR

Houston George Bush Intcntl

Sun 4/10

11:02-06:30

1 stop13h 28m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£243

Fastest return journey

HoustonLondon

IAH Houston George Bush Intcntl - LHR London Heathrow

IAHLHR

Houston George Bush Intcntl

Tue 8/12

19:00-10:15

Nonstop9h 15m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£264

HoustonLondon

IAH Houston George Bush Intcntl - LHR London Heathrow

IAHLHR

Houston George Bush Intcntl

Fri 6/11

12:08-09:30

1 stop15h 22m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£265

HoustonLondon

IAH Houston George Bush Intcntl - LHR London Heathrow

IAHLHR

Houston George Bush Intcntl

Sun 6/12

07:00-06:50

2 stops17h 50m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£267

HoustonLondon

HOU Houston Hobby - LHR London Heathrow

HOULHR

Houston Hobby

Tue 29/12

06:00-07:15

2 stops19h 15m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£297

HoustonLondon

HOU Houston Hobby - LHR London Heathrow

HOULHR

Houston Hobby

Tue 24/11

15:12-09:00

1 stop11h 48m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£390

HoustonLondon

HOU Houston Hobby - LHR London Heathrow

HOULHR

Houston Hobby

Wed 14/10

15:09-11:20

1 stop14h 11m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£390

HoustonLondon

IAH Houston George Bush Intcntl - LHR London Heathrow

IAHLHR

Houston George Bush Intcntl

Sat 10/10

17:02-20:10

2 stops21h 08m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£390

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 39 resultsSorted by cheapest first

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.

HO1-LHR

IAH-LHR

HOU-LHR

Estimated return 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

HO1-LHR

IAH-LHR

HOU-LHR

What is the cheapest month to book a flight from Houston to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of £517). Flying from Houston to London Heathrow Airport in June is currently the most expensive (average of £1,030). 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?

When flying from Houston to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Houston to London Heathrow Airport?

Airfare is typical for this route at the moment.

Houston to London Heathrow Airport flights typically cost between £494 and £807 in March.
The cheapest return price found within the last 5 days was £639 on Air Canada (4 Mar–14 Mar).

How often are flights from Houston to London delayed?

About 21% 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?

Saturday 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 past year, British Airways have had the lowest number of delays on this route, with just 15% of flights being delayed.

How far ahead should I book a flight from Houston to London Heathrow Airport?

Booking 39 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Houston to London Heathrow Airport, such as United Airlines,Virgin Atlantic, andBritish Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

10,194 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

10,194 reviews

United Airlines

7.4

Good

10,194 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Virgin Atlantic

7.4

Good

694 reviews

United Airlines

7.4

Good

10,194 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

British Airways

6.7

Okay

8,210 reviews

United Airlines

7.4

Good

10,194 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

How long is the flight from Houston to London Heathrow Airport?
Departing from Houston to London Heathrow Airport will take you 9h 20m. Airlines will cover a distance of 4820 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Houston to London Heathrow Airport round-trip?
Cheapflights users have booked flights from Houston to London Heathrow Airport round-trip from £429. Other airlines that can offer you cheap pricing are United Airlines, from £438, and Virgin Atlantic, from £441. These flights start at 37% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Houston to London Heathrow Airport one-way?
The cheapet airlines for a one-way flight from Houston to London Heathrow Airport are United Airlines (£210), British Airways (£282), and Lufthansa (£298).
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 holiday 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, January is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of £517). Flying from Houston to London Heathrow Airport in June is currently the most expensive (average of £1,030). 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

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Top 3 airlines flying from Houston to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£429	Average£581	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£438	Average£700	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Virgin Atlantic	Cheapest£441	Average£496	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

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How does Cheapflights help users find flights from Houston to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Houston today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Houston to Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from Houston to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Houston to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Houston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Houston to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Houston to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Houston to London Heathrow Airport from £243

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Houston to Heathrow

Cheapest flights from Houston to HeathrowExplore 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 10 September 2026.

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 10 September 2026.

Best flights from Houston to HeathrowDiscover carefully curated flight deals from Houston to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Discover carefully curated flight deals from Houston to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Direct flights from Houston to HeathrowExplore direct flight options from Houston to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 September 2026.

Explore direct flight options from Houston to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 September 2026.

Last-minute flights from Houston to HeathrowDiscover last-minute flight deals from Houston to Heathrow. Data last updated 10 September 2026 and is based on user searches.

Discover last-minute flight deals from Houston to Heathrow. Data last updated 10 September 2026 and is based on user searches.

One-way flights from Houston to HeathrowSearch for one-way flight options from Houston to Heathrow. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Search for one-way flight options from Houston to Heathrow. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Find flight deals from Houston to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Houston to London Heathrow Airport that are best for you.

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.

Cheapflights Insights

What is the cheapest month to book a flight from Houston to London Heathrow Airport?

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 10 September 2026.

When flying from Houston to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Houston to London Heathrow Airport?

Airfare is typical for this route at the moment.

Houston to London Heathrow Airport flights typically cost between £494 and £807 in March.The cheapest return price found within the last 5 days was £639 on Air Canada (4 Mar–14 Mar).

How often are flights from Houston to London delayed?

About 21% 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?

Saturday 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 past year, British Airways have had the lowest number of delays on this route, with just 15% of flights being delayed.

How far ahead should I book a flight from Houston to London Heathrow Airport?

Booking 39 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Houston to London Heathrow Airport, such as United Airlines,Virgin Atlantic, andBritish Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Houston to London Heathrow Airport?

What are the cheapest airlines flying from Houston to London Heathrow Airport round-trip?

What are the cheapest airlines to fly from Houston to London Heathrow Airport one-way?

Can I find deals for flights from Houston to Heathrow that include hotel bookings?

How can I find direct flights from Houston to Heathrow?

Can I find deals for business class flights from Houston to Heathrow?

What is the cheapest month to book a flight from Houston to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Houston to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Houston to Heathrow by cabin class

Find flights from Houston to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 September 2026.

Houston and Heathrow flights

Browse other Houston and Heathrow flight options. Last updated on 10 September 2026.

Popular flight searches

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Top 3 airlines flying from Houston to Heathrow

Fly with Cheapflights

How does Cheapflights help users find flights from Houston to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from Houston to Heathrow?

Can Cheapflights find flights from Houston to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Houston to Heathrow become cheaper?

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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 10 September 2026.

Best flights from Houston to Heathrow
Discover carefully curated flight deals from Houston to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Direct flights from Houston to Heathrow
Explore direct flight options from Houston to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 September 2026.

Last-minute flights from Houston to Heathrow
Discover last-minute flight deals from Houston to Heathrow. Data last updated 10 September 2026 and is based on user searches.

One-way flights from Houston to Heathrow
Search for one-way flight options from Houston to Heathrow. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Houston to London Heathrow Airport flights typically cost between £494 and £807 in March.
The cheapest return price found within the last 5 days was £639 on Air Canada (4 Mar–14 Mar).