Find and book Finnair flights from London

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Flight offers from London (LON)

LHR – HEL
London - Helsinki
Sat 17 May 2025 – Sun 25 May 2025
From
£175
LHR – HEL
London - Helsinki
Sat 10 May 2025 – Sun 18 May 2025
From
£179
LHR – HEL
London - Helsinki
Tue 13 May 2025 – Sun 18 May 2025
From
£189
LHR – HEL
London - Helsinki
Tue 20 May 2025 – Sun 25 May 2025
From
£189
LHR – HEL
London - Helsinki
Tue 6 May 2025 – Sun 11 May 2025
From
£189
LHR – HEL
London - Helsinki
Sat 31 May 2025 – Wed 4 Jun 2025
From
£189

Cheap Finnair flights from London and (LON) airports

LHR – HEL
London - Helsinki
Sat 17 May 2025 – Sun 25 May 2025
From
£175
Book now
LHR – HEL
London - Helsinki
Sat 10 May 2025 – Sun 18 May 2025
From
£179
Book now
LHR – HEL
London - Helsinki
Tue 13 May 2025 – Sun 18 May 2025
From
£189
Book now
LHR – HEL
London - Helsinki
Tue 20 May 2025 – Sun 25 May 2025
From
£189
Book now