Cheap flights from London Heathrow Airport to Houston from £320

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — HOU
15 Mar — 22 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Houston

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Houston
Explore the most affordable flight options available from Heathrow to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 February 2026.

Tue 7/406:40
LHR
-
IAH
3 stops23h 09m
Multiple Airlines
Tue 14/407:05
IAH
-
LHR
2 stops32h 15m
Multiple Airlines
Deal found 12/2£531
Sat 7/306:40
LHR
-
IAH
3 stops22h 29m
Multiple Airlines
Wed 11/305:46
IAH
-
LHR
3 stops26h 09m
Multiple Airlines
Deal found 13/2£533
Mon 2/314:50
LHR
-
IAH
1 stop32h 40m
Multiple Airlines
Tue 24/307:05
IAH
-
LHR
2 stops18h 25m
Multiple Airlines
Deal found 10/2£538
Tue 17/306:40
LHR
-
IAH
3 stops22h 09m
Multiple Airlines
Fri 20/306:00
IAH
-
LHR
3 stops31h 30m
Multiple Airlines
Deal found 12/2£541
Mon 2/306:40
LHR
-
IAH
3 stops22h 29m
Multiple Airlines
Mon 16/307:05
IAH
-
LHR
2 stops31h 50m
Multiple Airlines
Deal found 11/2£545
Wed 4/314:50
LHR
-
IAH
1 stop27h 55m
Multiple Airlines
Sat 21/319:19
IAH
-
LHR
2 stops30h 11m
Multiple Airlines
Deal found 11/2£546
Wed 4/314:50
LHR
-
IAH
1 stop27h 55m
Multiple Airlines
Tue 10/321:15
IAH
-
LHR
2 stops41h 55m
Multiple Airlines
Deal found 12/2£549
Mon 9/320:05
LHR
-
IAH
2 stops33h 25m
Multiple Airlines
Tue 17/316:22
IAH
-
LHR
2 stops20h 28m
Multiple Airlines
Deal found 12/2£555
Sat 7/309:20
LHR
-
IAH
1 stop33h 42m
JetBlue
Tue 17/311:30
IAH
-
LHR
1 stop14h 25m
JetBlue
Deal found 12/2£555
Wed 4/314:50
LHR
-
IAH
1 stop27h 55m
Multiple Airlines
Tue 1/915:35
IAH
-
LHR
1 stop17h 05m
Multiple Airlines
Deal found 11/2£557
Tue 12/508:55
LHR
-
HOU
1 stop16h 56m
American Airlines
Mon 18/520:21
HOU
-
LHR
1 stop12h 04m
American Airlines
Deal found 11/2£604
Tue 12/513:25
LHR
-
HOU
1 stop15h 43m
Delta
Mon 18/513:16
HOU
-
LHR
1 stop16h 04m
Delta
Deal found 11/2£616

Find flight deals from Heathrow to Houston

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Houston (HO1). 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 13 February 2026.

Round-trip from

£531

One-way from

£320

Popular in

July

Cheapest in

November

Average price

£658
7/4-14/4
  • 7/4-14/4
  • 5 total stops
  • 55h 24m total
  • London to Houston
20/5
  • 20/5
  • 2 total stops
  • 31h 15m total
  • London to Houston
Highest demand for flights based on searches. 13% potential increase in price (£80 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Average for round-trip flights in February 2026

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Houston 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 858,174 searches. Data last updated 13 February 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Houston that are best for you.

Fly from

Heathrow

Fly to

Houston

Route

Depart

Return

Price

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Thu 26/2

15:15-19:10

1 stop33h 55m

Houston George Bush Intcntl

Mon 2/3

21:05-22:25

1 stop19h 20m

£737

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 17/3

06:35-20:10

1 stop18h 35m

Houston George Bush Intcntl

Wed 25/3

22:05-21:05

1 stop18h 00m

£739

LondonHouston

LHR - HOU

LHRHOU

London Heathrow

Sat 7/3

20:35-23:10

2 stops32h 35m

Houston Hobby

Tue 17/3

11:40-10:50

2 stops18h 10m

£749

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Thu 12/3

06:35-20:10

1 stop18h 35m

Houston George Bush Intcntl

Sun 22/3

15:55-14:55

1 stop18h 00m

£749

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Thu 7/5

07:05-21:33

3 stops20h 28m

Houston George Bush Intcntl

Sun 10/5

14:20-18:30

2 stops22h 10m

£768

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Mon 11/5

07:25-16:35

1 stop15h 10m

Houston George Bush Intcntl

Tue 19/5

20:05-11:35

Nonstop9h 30m

£795

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 12/5

07:25-16:35

1 stop15h 10m

Houston George Bush Intcntl

Mon 18/5

20:05-11:35

Nonstop9h 30m

£795

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Mon 11/5

09:30-18:00

1 stop14h 30m

Houston George Bush Intcntl

Wed 20/5

20:05-11:35

Nonstop9h 30m

£806

LondonHouston

LHR - HOU

LHRHOU

London Heathrow

Tue 17/3

06:30-22:42

2 stops21h 12m

Houston Hobby

Tue 24/3

17:22-11:40

1 stop13h 18m

£816

LondonHouston

LHR - HOU

LHRHOU

London Heathrow

Tue 10/3

06:30-22:42

2 stops21h 12m

Houston Hobby

Tue 17/3

14:13-09:00

1 stop13h 47m

£816

Flights are sorted by cheapest return flights first.

Deals found on 11/2

Showing 1-10 of 41 results
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Best time to book a flight from Heathrow to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from Heathrow with our price prediction graph.
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 London Heathrow Airport to Houston

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Houston. Price data was last updated on 6 February 2026.

The price you pay for your flight from London Heathrow Airport to Houston may vary depending on when you book. For the best chance of a lower fare, look to book 70 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 London Heathrow Airport to Houston?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Houston (average of £200). Flying from London Heathrow Airport to Houston in July is currently the most expensive (average of £657). 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 LHR to HOU?

Find hourly flight availability from Heathrow to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 February 2026.

When flying from London Heathrow Airport to Houston, 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 London Heathrow Airport to Houston?

How often are flights from London to Houston delayed?

About 14% of weekly flights between London and Houston have experienced delays in the past year, with the average delay time being 148 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to Houston flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 11% of flights being delayed.

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. 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 Houston. Reviews last updated 13 February 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Houston, such as Finnair, Austrian Airlines, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Food

6.7

Entertainment

6.9

Comfort

7.4

Boarding

7.7

Overall

7.6

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

Food

6.7

Entertainment

6.9

Comfort

7.4

Boarding

7.7

Overall

7.6

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

Food

6.7

Entertainment

6.9

Comfort

7.4

Boarding

7.7

Overall

7.6

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

Food

6.7

Entertainment

6.9

Comfort

7.4

Boarding

7.7

Overall

7.6

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

Food

6.7

Entertainment

6.9

Comfort

7.4

Boarding

7.7

Overall

7.6

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

Food

6.7

Entertainment

6.9

Comfort

7.4

Boarding

7.7

Overall

7.6

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports serve Heathrow to Houston flights?

    Houston George Bush Intercontinental Airport (IAH) is the termination point for flights to Houston from London Heathrow Airport (LHR). Houston George Bush is the primary gateway to the city of Houston, about 23 miles away. It is the second busiest airport in the state of Texas and uses five commercial terminals, at least two of which service international air traffic. Heathrow is one of the world’s top five busiest airports and the primary gateway to the city of London and the rest of the UK. It is located about 14 miles outside Central London, employs four terminals and is the main hub for British Airways and Virgin Atlantic.

  • Which airlines fly directly from Heathrow to Houston?

    If you’re seeking direct flights to Houston, there are at least two airlines (British Airways and Finnair) providing non-stop service on this route. Both airlines require similar flight times, with an average duration of about 10h 25min. Finnair and British Airways also offer daily departures, primarily mid-morning, from London Heathrow. Various additional routes between the two cities, involving one or more stopovers, are operated by a number of airlines. Examples include KLM flights via Amsterdam and Atlanta or SWISS flights via Zurich and Washington, DC.

  • What are the stopover options between Heathrow and Houston?

    If you’re flying to Houston from Heathrow with Virgin Atlantic, you should expect stopovers at Amsterdam Schiphol Airport (AMS), Paris Charles de Gaulle Airport (CDG) or Atlanta’s Hartsfield-Jackson Airport (ATL) en route. Stopovers at Amsterdam last just over 1h, while those at Paris range from 1h to 1h 25min. Virgin Atlantic’s US connection via Atlanta Hartsfield involves layovers of between 2h and 3h 40min. Passengers on board Lufthansa flights should anticipate stopovers at Frankfurt am Main Airport (FRA) to last between 1h to around 2h 45min. The airline also offers a connection via Orlando Airport (ORL), with layovers lasting approximately 2h on average. Be advised that most connecting flights require plane transfers, while some involve overnight stays. In some cases, one-stop flights are cheaper than flying direct, whilst direct flights are often marginally cheaper than those requiring multiple connections.

  • Do I need a passport or visa to fly from Heathrow to Houston?

    UK citizens benefit from being part of the US visa waiver program, but you will need an electronic permit (ESTA) along with a valid UK passport to enter the country. ESTAs can be obtained online from the US Government’s official ESTA website. The processing time can be as little as one hour, with processing fees of approximately $14 (around £10) per person. Travellers holding dual citizenship on flights to Houston from Heathrow must use their US passports when entering the country.

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

    For as low as £768, Turkish Airlines can have you in Houston from London Heathrow Airport in 20h 28m. The distance between London Heathrow Airport and Houston is about 4820 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Flying on WestJet is currently your cheapest option to Houston, with prices starting at £187. Additional return tickets that might be worth considering are offered by KLM and Virgin Atlantic, with the lowest prices starting at £312 and £379, respectively. WestJet is priced at 74% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at £300. Finnair flights start at £485 while deals on Lufthansa start at £518 one-way.

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

    Yes. In addition to deals on Heathrow to Houston flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Houston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Houston.

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

    Yes. Cheapflights offers flight deals from Heathrow to Houston 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 London Heathrow Airport to Houston?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Houston (average of £200). Flying from London Heathrow Airport to Houston in July is currently the most expensive (average of £657). 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 10 airlines flying from Heathrow to Houston

Discover the top 10 airlines that operate flights from Heathrow to Houston. 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 858,174 searches. Data last updated 13 February 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest£187Average£617FlexibilityNo cancel feeOn-time60%
Search WestJet flights
KLMCheapest£312Average£805FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£379Average£694FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£467Average£744FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
FinnairCheapest£485Average£696FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£493Average£732FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest£495Average£792FlexibilityNo cancel feeOn-time77%
Search Iberia flights
JetBlueCheapest£504Average£636FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Austrian AirlinesCheapest£506Average£763FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Air CanadaCheapest£544Average£577FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

When you search for this flight from Heathrow to Houston, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Houston 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 Heathrow to Houston with no change fees?

Certainly. Search results for flights to Houston from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Heathrow to Houston flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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