Cheap flights from London Heathrow Airport to Houston from £278

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — HOU
7 Sep — 14 Sep1
1 adult

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 2 September 2025.

Round-trip from

£573

One-way from

£278

Popular in

July

Cheapest in

January

Average price

£649
18/9-29/9
  • 18/9-29/9
  • 3 total stops
  • 33h 50m total
  • London to Houston
3/11
  • 3/11
  • 3 total stops
  • 39h 27m total
  • London to Houston
Highest demand for flights based on searches. 15% potential increase in price (£98 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Heathrow to Houston

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 2 September 2025.

Mon 8/920:55LHR - IAH
2 stops31h 31mMultiple Airlines
Sun 21/907:10IAH - LHR
1 stop20h 50mMultiple Airlines
Deal found 1/9£580
Wed 12/1109:55LHR - IAH
2 stops28h 37mMultiple Airlines
Thu 12/313:35IAH - LHR
1 stop18h 15mMultiple Airlines
Deal found 31/8£581
Tue 28/1009:20LHR - IAH
1 stop32h 21mJetBlue
Tue 4/1113:38IAH - LHR
1 stop11h 17mJetBlue
Deal found 1/9£582
Sun 7/913:50LHR - IAH
1 stop31h 14mMultiple Airlines
Sat 20/916:36IAH - LHR
2 stops17h 59mMultiple Airlines
Deal found 31/8£583
Tue 11/1106:00LHR - IAH
2 stops21h 53mMultiple Airlines
Wed 11/313:35IAH - LHR
1 stop18h 15mMultiple Airlines
Deal found 31/8£584
Sun 7/918:45LHR - IAH
2 stops32h 22mMultiple Airlines
Sat 22/1118:20IAH - LHR
1 stop36h 30mMultiple Airlines
Deal found 1/9£584
Sat 11/1009:30LHR - IAH
3 stops18h 42mMultiple Airlines
Sun 19/1005:45IAH - LHR
3 stops21h 50mMultiple Airlines
Deal found 1/9£585
Tue 28/1007:25LHR - IAH
2 stops34h 16mIcelandair
Wed 5/1113:38IAH - LHR
1 stop11h 17mIcelandair
Deal found 31/8£586
Wed 17/906:40LHR - IAH
3 stops31h 44mMultiple Airlines
Sat 20/905:30IAH - LHR
3 stops28h 55mMultiple Airlines
Deal found 1/9£587
Sat 27/913:50LHR - IAH
1 stop31h 14mMultiple Airlines
Sat 18/1006:05IAH - LHR
2 stops17h 45mMultiple Airlines
Deal found 31/8£587
Wed 17/906:40LHR - IAH
2 stops23h 10mScandinavian Airlines
Wed 15/1016:00IAH - LHR
2 stops23h 40mScandinavian Airlines
Deal found 1/9£589
Thu 2/1019:45LHR - HOU
2 stops27h 55mVirgin Atlantic
Tue 7/1018:44HOU - LHR
1 stop12h 46mVirgin Atlantic
Deal found 31/8£593

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 2 September 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

Thu 18/9

14:10-22:43

1 stop14h 33m

Houston George Bush Intcntl

Mon 29/9

12:58-14:15

2 stops19h 17m

£573

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 1/10

08:25-13:40

1 stop35h 15m

Houston George Bush Intcntl

Wed 22/10

14:45-06:30

1 stop33h 45m

£583

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 12/11

14:50-17:29

1 stop32h 39m

Houston George Bush Intcntl

Fri 14/11

18:20-12:50

1 stop36h 30m

£585

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Thu 18/9

14:10-22:43

1 stop14h 33m

Houston George Bush Intcntl

Sat 4/10

12:58-08:50

1 stop13h 52m

£587

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 17/9

06:40-23:50

2 stops23h 10m

Houston George Bush Intcntl

Wed 15/10

16:00-21:40

2 stops23h 40m

£589

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Sat 20/9

13:50-22:48

1 stop14h 58m

Houston George Bush Intcntl

Thu 2/10

05:30-05:50

1 stop18h 20m

£590

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Sat 22/11

06:40-23:52

2 stops23h 12m

Houston George Bush Intcntl

Sat 6/12

16:11-17:40

2 stops19h 29m

£592

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 19/11

09:20-17:51

1 stop14h 31m

Houston George Bush Intcntl

Tue 3/2

12:40-06:55

1 stop12h 15m

£592

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Wed 24/9

06:40-23:50

2 stops23h 10m

Houston George Bush Intcntl

Thu 2/10

13:13-21:40

2 stops26h 27m

£592

LondonHouston

LHR - IAH

LHRIAH

London Heathrow

Mon 10/11

06:40-23:58

2 stops23h 18m

Houston George Bush Intcntl

Thu 13/11

16:11-21:40

2 stops23h 29m

£592

Flights are sorted by cheapest return flights first.

Deals found on 1/9

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 29 August 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 £765). Flying from London Heathrow Airport to Houston in July is currently the most expensive (average of £1,114). 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 2 September 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 13% on flights from London Heathrow Airport to Houston by exploring options for tickets in the afternoon.

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 Wednesday afternoons 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.

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

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 2 September 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

Food

6.8

Boarding

7.6

Comfort

7.3

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andra,Aug 2025

LHR - LAX

Flight was very good, few minutes delayed, but good flight. We both are satisfied, thank you!

Entertainment

6.8

Food

6.8

Boarding

7.6

Comfort

7.3

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andra,Aug 2025

LHR - LAX

Flight was very good, few minutes delayed, but good flight. We both are satisfied, thank you!

Entertainment

6.8

Food

6.8

Boarding

7.6

Comfort

7.3

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andra,Aug 2025

LHR - LAX

Flight was very good, few minutes delayed, but good flight. We both are satisfied, thank you!

Entertainment

6.8

Food

6.8

Boarding

7.6

Comfort

7.3

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andra,Aug 2025

LHR - LAX

Flight was very good, few minutes delayed, but good flight. We both are satisfied, thank you!

Entertainment

6.8

Food

6.8

Boarding

7.6

Comfort

7.3

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andra,Aug 2025

LHR - LAX

Flight was very good, few minutes delayed, but good flight. We both are satisfied, thank you!

Entertainment

6.8

Food

6.8

Boarding

7.6

Comfort

7.3

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andra,Aug 2025

LHR - LAX

Flight was very good, few minutes delayed, but good flight. We both are satisfied, thank you!

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 £589, JetBlue can have you in Houston from London Heathrow Airport in 23h 10m. 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 KLM is currently your cheapest option to Houston, with prices starting at £314. Additional return tickets that might be worth considering are offered by WestJet and Virgin Atlantic, with the lowest prices starting at £379 and £380, respectively. KLM is priced at 56% lower than the current average price of a flight leaving 3 months from now.

  • 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 £765). Flying from London Heathrow Airport to Houston in July is currently the most expensive (average of £1,114). 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 2 September 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£314Average£703FlexibilityNo cancel feeOn-time75%
Search KLM flights
WestJetCheapest£379Average£552FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Virgin AtlanticCheapest£380Average£740FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£442Average£640FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£452Average£571FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Scandinavian AirlinesCheapest£477Average£640FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapest£490Average£742FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
FinnairCheapest£492Average£613FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Austrian AirlinesCheapest£510Average£804FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
IberiaCheapest£520Average£767FlexibilityNo cancel feeOn-time77%
Search Iberia flights

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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?

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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