Weekly Finnair flight availability from London Heathrow Airport to Houston George Bush Intcntl Airport

The most Finnair flights from LHR to IAH are scheduled on a Monday (2 on average). You will have fewer Finnair flight options on Thursday, which is when the least amount of flights are scheduled (1 on average).

In terms of precipitation, rainfall in Houston George Bush Intcntl Airport ranges from 81.0 - 150.0 inches per month. June is typically the wettest month, when rainfall can reach 150.0 mm. February is typically the driest time to visit Houston George Bush Intcntl Airport when rainfall is around 81.0 mm.

If weather is an important factor for your trip to Houston George Bush Intcntl 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 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 12.0 C).

£601+ Finnair Flights from Heathrow to George Bush Intcntl

Cheapflights users flying from London to Houston on Finnair typically fly into Houston George Bush Intcntl and depart from London Heathrow. Select your dates above for pricing.

Finnair flights from Heathrow to George Bush Intcntl in 2026

One-way from	£601
Return from	£869
Popular in	July
Cheapest in	January
Average price (all airlines)	£808

Finnair
6/10
Nonstop
10h 15m total
London to Houston

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Finnair
7/10-19/10
3 total stops
35h 11m total
London to Houston

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Highest demand for flights from London Heathrow to Houston George Bush Intcntl; 10% potential price increase.

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Best time to find cheap flights from London Heathrow to Houston George Bush Intcntl; 2% potential price drop.

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Average price for all London Heathrow to Houston George Bush Intcntl flights (one-way and round-trip).

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Can I get a flight from London Heathrow Airport to Houston George Bush Intcntl Airport on Finnair for under £817?
Cheapflights users have found 9 Finnair flights for under £817 on the LHR-IAH route. Prices on flights to Houston George Bush Intcntl Airport from London Heathrow Airport can vary based on many factors including dates. To look at price based on your preferred dates, click here.

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Cheapest Finnair flights from Heathrow to George Bush Intcntl
Explore the most affordable Finnair flight options available from Heathrow to George Bush Intcntl. Find the lowest fares with prices last updated on 27 May 2026.

Mon 22/608:55

LHR

IAH

1 stop15h 05m

Finnair

Mon 6/721:10

IAH

LHR

Nonstop9h 15m

Finnair

Deal found 23/5£962

Mon 29/609:10

LHR

IAH

Nonstop10h 10m

Finnair

Mon 13/714:04

IAH

LHR

1 stop12h 56m

Finnair

Deal found 26/5£968

Wed 17/609:10

LHR

IAH

Nonstop10h 10m

Finnair

Wed 24/616:57

IAH

LHR

1 stop11h 33m

Finnair

Deal found 24/5£998

Prices

Airlines

Which month is the cheapest to fly Economy class from London Heathrow Airport to Houston George Bush Intcntl Airport?

For Economy class flights, the cheapest month to fly this route is January. The most expensive months are December and May.

Best time to book a flight from Heathrow to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Heathrow with our price prediction graph.

LHR-IAH

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.

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Finnair flights from London Heathrow Airport to Houston George Bush Intcntl Airport (LHR - IAH)

Cheapflights users flying from London to Houston on Finnair typically fly into Houston George Bush Intcntl and depart from London Heathrow. Select your dates above for pricing.

Finnair flights from Heathrow to George Bush Intcntl in 2026

Find detailed information about Finnair flights from Heathrow to George Bush Intcntl. Explore the options provided by Finnair to plan your journey from Heathrow to George Bush Intcntl. Data last updated 27 May 2026.

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Can I get a flight from London Heathrow Airport to Houston George Bush Intcntl Airport on Finnair for under £817?

Find Finnair flight deals from Heathrow to George Bush Intcntl

Cheapest Finnair flights from Heathrow to George Bush IntcntlExplore the most affordable Finnair flight options available from Heathrow to George Bush Intcntl. Find the lowest fares with prices last updated on 27 May 2026.

Explore the most affordable Finnair flight options available from Heathrow to George Bush Intcntl. Find the lowest fares with prices last updated on 27 May 2026.

Best Finnair flights from Heathrow to George Bush IntcntlDiscover carefully curated Finnair flight deals from Heathrow to George Bush Intcntl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 May 2026.

Discover carefully curated Finnair flight deals from Heathrow to George Bush Intcntl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 May 2026.

Direct Finnair flights from Heathrow to George Bush IntcntlExplore direct Finnair flight options from Heathrow to George Bush Intcntl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 27 May 2026.

Explore direct Finnair flight options from Heathrow to George Bush Intcntl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 27 May 2026.

Last-minute Finnair flights from Heathrow to George Bush IntcntlDiscover last-minute Finnair flight deals from Heathrow to George Bush Intcntl. Data last updated 27 May 2026 and is based on user searches.

Discover last-minute Finnair flight deals from Heathrow to George Bush Intcntl. Data last updated 27 May 2026 and is based on user searches.

One-way Finnair flights to George Bush IntcntlSearch for one-way Finnair flight options to George Bush Intcntl. Find affordable one-way fares based on user searches. Data last updated 27 May 2026.

Search for one-way Finnair flight options to George Bush Intcntl. Find affordable one-way fares based on user searches. Data last updated 27 May 2026.

Which month is the cheapest to fly Economy class from London Heathrow Airport to Houston George Bush Intcntl Airport?

Weekly Finnair flight availability from London Heathrow Airport to Houston George Bush Intcntl Airport

Rainfall in George Bush Intcntl by month

Temperature in George Bush Intcntl by month

Best time to book a flight from Heathrow to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Heathrow with our price prediction graph.

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Browse through other Finnair flights departing from Heathrow. Flight routes are based on user searches made on Cheapflights and were last updated on 27 May 2026.

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Other airlines servicing Heathrow and George Bush Intcntl

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Other popular destinations in North America

If George Bush Intcntl is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on 27 May 2026.

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Browse through some of the most popular routes that Finnair offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 27 May 2026.

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Cheapest Finnair flights from Heathrow to George Bush Intcntl
Explore the most affordable Finnair flight options available from Heathrow to George Bush Intcntl. Find the lowest fares with prices last updated on 27 May 2026.

Best Finnair flights from Heathrow to George Bush Intcntl
Discover carefully curated Finnair flight deals from Heathrow to George Bush Intcntl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 May 2026.

Direct Finnair flights from Heathrow to George Bush Intcntl
Explore direct Finnair flight options from Heathrow to George Bush Intcntl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 27 May 2026.

Last-minute Finnair flights from Heathrow to George Bush Intcntl
Discover last-minute Finnair flight deals from Heathrow to George Bush Intcntl. Data last updated 27 May 2026 and is based on user searches.

One-way Finnair flights to George Bush Intcntl
Search for one-way Finnair flight options to George Bush Intcntl. Find affordable one-way fares based on user searches. Data last updated 27 May 2026.