Cheapest return flights from Helsinki to Sofia in May from $138

AirHint found the following cheapest return flights from Helsinki (HEL) to Sofia (SOF) in May 2026 (see full year).

Return flights

07 May - 11 May Ryanair
07 May - 15 May Ryanair
24 May - 29 May Ryanair
26 May - 05 Jun Ryanair
26 May - 30 May Norwegian Air Sweden AOC
31 May - 05 Jun Ryanair
21 May - 28 May Ryanair
11 May - 13 May Finnair
05 May - 08 May Ryanair
10 May - 13 May Norwegian Air Sweden AOC
04 May - 10 May Finnair
04 May - 09 May Ryanair
30 May - 09 Jun Finnair
30 May - 06 Jun Finnair
28 May - 07 Jun Ryanair

Also check the deals for one-way flights from Helsinki to Sofia in May.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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