Cheap flights from London Heathrow Airport to Houston from £299

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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — HOU
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London Heathrow to Houston are usually found in January or May, booked 77 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap 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 7 November 2025.

Round-trip from

£577

One-way from

£299

Popular in

July

Cheapest in

January

Average price

£702
23/11-3/12
  • 23/11-3/12
  • 6 total stops
  • 57h 24m total
  • London to Houston
6/2
  • 6/2
  • 2 total stops
  • 20h 04m total
  • London to Houston
Highest demand for flights based on searches. 14% potential increase in price (£94 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£16 potential savings vs. average return price).
Average for round-trip flights in November 2025

Find 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 7 November 2025.

Sun 23/1112:15LHR - IAH
3 stops25h 09mMultiple Airlines
Wed 3/1220:35IAH - LHR
3 stops32h 15mMultiple Airlines
Deal found 5/11£577
Wed 17/1209:55LHR - IAH
2 stops29h 05mMultiple Airlines
Mon 12/113:35IAH - LHR
1 stop17h 15mMultiple Airlines
Deal found 6/11£578
Sat 6/1206:30LHR - IAH
2 stops28h 11mMultiple Airlines
Sat 13/1215:55IAH - LHR
1 stop16h 25mMultiple Airlines
Deal found 5/11£581
Wed 19/1114:50LHR - IAH
2 stops31h 34mMultiple Airlines
Thu 4/1205:00IAH - LHR
3 stops24h 20mMultiple Airlines
Deal found 6/11£582
Sat 22/1112:15LHR - IAH
3 stops35h 11mMultiple Airlines
Mon 1/1208:29IAH - LHR
2 stops29h 01mMultiple Airlines
Deal found 6/11£585
Fri 5/1219:30LHR - IAH
2 stops34h 29mMultiple Airlines
Fri 12/1205:00IAH - LHR
2 stops29h 00mMultiple Airlines
Deal found 5/11£586
Wed 12/1120:35LHR - IAH
3 stops33h 24mMultiple Airlines
Wed 19/1105:45IAH - LHR
3 stops23h 05mMultiple Airlines
Deal found 5/11£587
Sat 22/1114:50LHR - IAH
2 stops26h 29mMultiple Airlines
Wed 3/1213:35IAH - LHR
1 stop17h 15mMultiple Airlines
Deal found 6/11£588
Sun 23/1109:20LHR - IAH
1 stop30h 11mJetBlue
Wed 3/1218:45IAH - LHR
1 stop30h 10mJetBlue
Deal found 6/11£590
Wed 12/1120:35LHR - IAH
2 stops33h 24mMultiple Airlines
Mon 17/1105:14IAH - LHR
3 stops32h 16mMultiple Airlines
Deal found 6/11£592
Sun 23/1112:15LHR - HOU
2 stops17h 35mMultiple Airlines
Wed 3/1212:55HOU - LHR
2 stops15h 55mMultiple Airlines
Deal found 6/11£722
Mon 8/1208:20LHR - HOU
1 stop13h 33mBritish Airways
Wed 24/1212:09HOU - LHR
1 stop14h 26mBritish Airways
Deal found 5/11£802

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 7 November 2025.
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

Tue 20/1

06:40-23:39

2 stops22h 59m

Houston George Bush Intcntl

Wed 28/1

16:06-17:40

2 stops19h 34m

£635

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 18/11

09:20-17:51

1 stop14h 31m

Houston George Bush Intcntl

Tue 2/12

13:36-06:55

1 stop11h 19m

£638

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 18/11

09:20-17:51

1 stop14h 31m

Houston George Bush Intcntl

Thu 4/12

13:36-06:55

1 stop11h 19m

£638

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 18/11

07:05-23:56

3 stops22h 51m

Houston George Bush Intcntl

Mon 12/1

16:06-17:40

2 stops19h 34m

£663

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 18/11

09:20-17:51

1 stop14h 31m

Houston George Bush Intcntl

Fri 5/12

13:36-06:55

1 stop11h 19m

£669

LondonHouston

LHR - HOU

LHRHOU

London Heathrow

Sun 23/11

12:15-23:50

2 stops17h 35m

Houston Hobby

Wed 3/12

12:55-10:50

2 stops15h 55m

£722

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Thu 12/3

06:35-20:10

1 stop18h 35m

Houston George Bush Intcntl

Wed 18/3

22:05-21:05

1 stop18h 00m

£745

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Tue 18/11

22:35-13:10

1 stop20h 35m

Houston George Bush Intcntl

Sun 30/11

14:55-16:00

1 stop19h 05m

£751

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 19/11

06:35-19:10

1 stop18h 35m

Houston George Bush Intcntl

Sun 30/11

21:05-21:05

1 stop18h 00m

£751

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Thu 12/3

06:35-20:10

1 stop18h 35m

Houston George Bush Intcntl

Sat 21/3

22:05-22:25

1 stop19h 20m

£755

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 40 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 31 October 2025.

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 77 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 £435). Flying from London Heathrow Airport to Houston in July is currently the most expensive (average of £650). 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 7 November 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 34% on flights from London Heathrow Airport to Houston by exploring options for tickets in the evening.

What is the cheapest day to fly from London Heathrow Airport to Houston?

Use this chart to determine the cheapest time to fly return from Heathrow to Houston. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London Heathrow Airport to Houston flight should consider departing on Monday evenings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 7 November 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Houston, such as Austrian Airlines, Finnair, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

6.8

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

Entertainment

6.8

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

Entertainment

6.8

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

Entertainment

6.8

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

Entertainment

6.8

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

Entertainment

6.8

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

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 £795, Scandinavian Airlines can have you in Houston from London Heathrow Airport in 13h 32m. The distance between London Heathrow Airport and Houston is about 4835 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 KLM is currently your cheapest option to Houston, with prices starting at £325. Additional return tickets that might be worth considering are offered by WestJet and Virgin Atlantic, with the lowest prices starting at £392 and £392, respectively. KLM is priced at 56% 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 £500. British Airways flights start at £548 while deals on Delta start at £554 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 £435). Flying from London Heathrow Airport to Houston in July is currently the most expensive (average of £650). 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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£325Average£726FlexibilityNo cancel feeOn-time75%
Search KLM flights
WestJetCheapest£392Average£573FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Virgin AtlanticCheapest£392Average£766FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£457Average£676FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£479Average£588FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Scandinavian AirlinesCheapest£493Average£666FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapest£511Average£768FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest£518Average£786FlexibilityNo cancel feeOn-time77%
Search Iberia flights
FinnairCheapest£519Average£674FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Austrian AirlinesCheapest£527Average£821FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights

Fly with Cheapflights

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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?

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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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