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Finnair flights from London Heathrow Airport to Seattle (LHR - SEA)

LHR — SEA
6 Jun — 13 Jun1
1 adult
Thu 6/6
Thu 13/6

Cheapflights users flying from London to Seattle on Finnair typically fly into Seattle/Tacoma Intl and depart from London Heathrow. Select your dates above for pricing.

Finnair flights from Heathrow to Seattle in 2024

Find detailed information about Finnair flights from Heathrow to Seattle. Explore the options provided by Finnair to plan your journey from Heathrow to Seattle. Data last updated 1 June 2024.

Popular in

July

Cheapest in

November

Average price (all airlines)

£600

One-way from

£552

Return from

£563
Highest demand for flights from London Heathrow to Seattle/Tacoma Intl; 16% potential price increase.
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Best time to find cheap flights from London Heathrow to Seattle/Tacoma Intl; 2% potential price drop.
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Average price for all London Heathrow to Seattle/Tacoma Intl flights (one-way and round-trip).
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Cheapest one-way Finnair flight from London Heathrow to Seattle/Tacoma Intl
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Cheapest return Finnair flight from London Heathrow to Seattle/Tacoma Intl
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  • Can I get a flight from London Heathrow Airport to Seattle on Finnair for under £800?

    London Heathrow Airport to Seattle flights on Finnair are currently available under £800. 5 flights have been found by Cheapflights users under that amount. To find flights for your dates, click here.

  • How do most travelers feel about Finnair?

    The general consensus from 10,410 Cheapflights users is that Finnair is a 8.0/10. Select your travel dates above for updated prices on flights from London Heathrow Airport to Seattle (LHR-SEA).

Cheapest Finnair flights from Heathrow to Seattle

Discover the cheapest flight options specifically offered by Finnair for travel from Heathrow to Seattle. Compare prices and availability to find the most affordable fares for your desired travel dates. These prices are based on average fares users found. In the last 7 days, Cheapflights users made a total of 909,873 searches. The data was last updated on 1 June 2024.
Wed 12/609:50LHR - SEA
Nonstop9h 45mFinnair
Tue 25/617:51SEA - LHR
1 stop14h 14mFinnair
Deal found 31/5£585
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Tue 18/614:30LHR - SEA
2 stops41h 29mFinnair
Tue 10/907:00SEA - LHR
1 stop17h 00mFinnair
Deal found 31/5£592
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Tue 18/619:25LHR - SEA
2 stops36h 34mFinnair
Tue 10/906:00SEA - LHR
1 stop18h 00mFinnair
Deal found 1/6£592
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Direct flights from Heathrow to Seattle on Finnair

Discover the cheapest flight options specifically offered by Finnair for travel from Heathrow to Seattle. Compare prices and availability to find the most affordable fares for your desired travel dates. These prices are based on average fares users found. In the last 7 days Cheapflights users made total of 909,873 searches. The data was last updated on 1 June 2024.
Mon 16/909:50LHR - SEA
Nonstop9h 45mFinnair
Sat 21/919:40SEA - LHR
Nonstop9h 20mFinnair
Deal found 31/5£717
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Wed 12/609:50LHR - SEA
Nonstop9h 45mFinnair
Sun 23/619:40SEA - LHR
Nonstop9h 20mFinnair
Deal found 1/6£994
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Tue 26/1114:50LHR - SEA
Nonstop9h 55mFinnair
Sat 30/1118:45SEA - LHR
Nonstop9h 20mFinnair
Deal found 31/5£1,000
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Last minute deals on Cheapflights

Explore last-minute flight deals on Finnair for various destinations, including Heathrow to Seattle. Discover attractive deals on flights departing soon. Keep an eye on the latest last-minute deals to find great opportunities for spontaneous travel. Please note that prices are subject to change and availability may vary. Data last updated 1 June 2024 and based on user searches. In the last 7 days Cheapflights users made total of 909,873 searches.
Thu 6/616:55LHR - SEA
1 stop37h 55mFinnair
Sun 16/613:25SEA - LHR
1 stop24h 45mFinnair
Deal found 1/6£593
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Mon 10/616:55LHR - SEA
1 stop29h 02mFinnair
Thu 13/606:02SEA - LHR
1 stop16h 23mFinnair
Deal found 1/6£618
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Fri 7/612:15LHR - SEA
1 stop32h 16mFinnair
Fri 14/608:30SEA - LHR
1 stop16h 30mFinnair
Deal found 1/6£621
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One-way Finnair flights to Seattle from Heathrow

Search for direct flight options from Heathrow to Seattle specifically provided by Finnair. Find affordable direct fares from Finnair and compare prices with other airlines. These prices are based on average fares users found. In the last 7 days, Cheapflights users made a total of 909,873 searches. The data was last updated on 1 June 2024.
Mon 18/1114:50LHR - SEA
Nonstop9h 55mFinnair
Deal found 1/6£552
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Tue 19/1109:25LHR - SEA
Nonstop10h 00mFinnair
Deal found 31/5£552
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Mon 17/616:00LHR - SEA
Nonstop9h 45mFinnair
Deal found 31/5£567
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Best time to book a flight from Heathrow to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle 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.

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

SEA

Temperature

5 - 19 °C

If weather is an important factor for your trip to Seattle, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Browse thousands of different options on Cheapflights for your next trip

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Fly from Heathrow to Seattle on another airline
Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on 1 June 2024.

British Airways flights from London Heathrow to Seattle/Tacoma Intl
Virgin Atlantic flights from London Heathrow to Seattle/Tacoma Intl

See what others are saying about Finnair

Read reviews and see what other travellers are saying about their experiences with Finnair. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Finnair for your next flight. Reviews last updated 1 June 2024.
Finnair
7.7
Good
1,368 reviews
Check prices
Overview

Boarding

7.8

Food

6.9

Crew

8.2

Comfort

7.5

Entertainment

7.0
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