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Cheap Finnair flights

LHR
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Finnair information

Discover detailed information about Finnair flights, including average fare prices, reviews, and more. Flight info is based on data from user searches last updated on 12 December 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Cheapest Route

£84

Most Popular Route

HEL to OSL

Shortest flight

0h 30m

Longest Flight

18h 00m
Flying from Helsinki-Vantaa to Stockholm Arlanda
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Flying from Helsinki-Vantaa to Oslo Gardermoen
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Flying from Helsinki-Vantaa to Tallinn
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Flying from Oslo Gardermoen to Budapest Ferenc Liszt Intl
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Cheapest Finnair flights
Explore the most affordable Finnair flight options available. Find the lowest fares based on data from user searches, with prices last updated on 12 December 2025.

Wed 18/219:15BOS - LHR
Nonstop6h 45mFinnair
Mon 23/213:30LHR - BOS
Nonstop7h 35mFinnair
Deal found £378
Sun 15/219:15BOS - LHR
Nonstop6h 45mFinnair
Fri 20/213:30LHR - BOS
Nonstop7h 35mFinnair
Deal found £379
Tue 30/1219:15BOS - GLA
1 stop10h 30mFinnair
Tue 6/119:10GLA - BOS
2 stops32h 46mFinnair
Deal found £762

Finnair Reviews

Read reviews and feedback from other travellers about their experiences with Finnair sourced from user searches. These reviews were last updated on 12 December 2025 and provide insights based on users' experiences. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Finnair
7.6
Good
1,334 reviews
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Overview

Food

6.7

Boarding

7.6

Comfort

7.4

Entertainment

6.9

Crew

8.1

Frequently asked questions about Finnair

  • What are the most popular Finnair airports?

    The most popular airports for Finnair are Rovaniemi, Oulu, and Helsinki-Vantaa according to our data. Flights to or from any of these airports should be available via Finnair year-round.

  • What is Finnair’s cheapest domestic flight?

    The cheapest domestic Finnair flight is flying Kuopio to Helsinki-Vantaa, which is £107. This round-trip flight has 0 stops. For a one-way domestic Finnair flight, the cheapest route is Helsinki-Vantaa to Oulu (0 stops) for £48.

  • What is Finnair’s cheapest international flight?

    The least expensive round-trip international Finnair flight is: -Helsinki-Vantaa to Stockholm Arlanda, -0 stops, -£84 per ticket Finnair has international one-way flights available, but the cheapest is a flight from Riga Intl to Helsinki-Vantaa for just £36. This flight has 0 stops.

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