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Cheap Finnair flights

LHR
31 Aug — 7 Sep1
1 adult

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 26 August 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Cheapest Route

£62

Most Popular Route

HEL to OSL

Shortest flight

0h 30m

Longest Flight

17h 15m
Flying from Stockholm Arlanda to Helsinki-Vantaa
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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 26 August 2025.

Mon 1/1219:15BOS - LHR
Nonstop6h 45mFinnair
Wed 3/1213:30LHR - BOS
Nonstop7h 25mFinnair
Deal found £380
Fri 5/920:10BOS - LHR
Nonstop6h 40mFinnair
Wed 10/908:55LHR - BOS
Nonstop7h 20mFinnair
Deal found £382
Fri 17/1007:15BOS - EDI
1 stop10h 50mFinnair
Sat 18/1014:10EDI - BOS
1 stop11h 00mFinnair
Deal found £866

Finnair Reviews

Read reviews and feedback from other travellers about their experiences with Finnair sourced from user searches. These reviews were last updated on 26 August 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
1,320 reviews
Check prices
Overview

Crew

8.1

Boarding

7.6

Food

6.7

Entertainment

6.9

Comfort

7.5

Frequently asked questions about Finnair

  • What are the most popular Finnair airports?

    The most popular airports for Finnair are Oulu, Helsinki-Vantaa, and Stockholm Arlanda 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 Helsinki-Vantaa to Kuopio, which is £84. This round-trip flight has 0 stops. For a one-way domestic Finnair flight, the cheapest route is Joensuu to Helsinki-Vantaa (0 stops) for £42.

  • What is Finnair’s cheapest international flight?

    The least expensive round-trip international Finnair flight is: -Stockholm Arlanda to Helsinki-Vantaa, -0 stops, -£62 per ticket Finnair has international one-way flights available, but the cheapest is a flight from Stockholm Arlanda to Helsinki-Vantaa for just £24. This flight has 0 stops.

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