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Cheap Finnair flights

LHR
13 May — 20 May1
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 8 May 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Cheapest Route

£57

Most Popular Route

HEL to CPH

Shortest flight

0h 30m

Longest Flight

17h 40m
Flying from Stockholm Arlanda to Helsinki-Vantaa
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Flying from Helsinki-Vantaa to Kastrup Copenhagen
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Flying from Tallinn Ulemiste to Helsinki-Vantaa
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Flying from Krakow J. Paul II Balice to Stockholm Arlanda
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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 8 May 2025.

Thu 10/719:40BOS - LHR
Nonstop6h 40mFinnair
Wed 16/720:10LHR - BOS
Nonstop7h 30mFinnair
Deal found £434
Mon 23/619:40BOS - EDI
1 stop14h 00mFinnair
Mon 7/719:35EDI - BOS
1 stop20h 45mFinnair
Deal found £471
Thu 17/717:56BOS - GLA
2 stops23h 29mFinnair
Wed 6/817:40GLA - BOS
1 stop28h 35mFinnair
Deal found £793

Finnair Reviews

Read reviews and feedback from other travellers about their experiences with Finnair sourced from user searches. These reviews were last updated on 8 May 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
1,276 reviews
Check prices
Overview

Boarding

7.6

Comfort

7.4

Entertainment

6.9

Crew

8.1

Food

6.7

Frequently asked questions about Finnair

  • What are the most popular Finnair airports?

    The most popular airports for Finnair are Helsinki-Vantaa, Stockholm Arlanda, and Oulu 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 £82. 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 £41.

  • What is Finnair’s cheapest international flight?

    The least expensive round-trip international Finnair flight is: -Stockholm Arlanda to Helsinki-Vantaa, -0 stops, -£57 per ticket Finnair has international one-way flights available, but the cheapest is a flight from Stockholm Arlanda to Helsinki-Vantaa for just £35. This flight has 0 stops.

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