AirHint found the following cheapest return flights from Pisa (PSA) to Sofia (SOF) in December 2025 (see full year).

Return flights

12 Dec - 14 Dec	Wizz Air Malta
12 Dec - 15 Dec	Ryanair
08 Dec - 11 Dec	Ryanair
11 Dec - 16 Dec	Ryanair
19 Dec - 21 Dec	Ryanair
07 Dec - 08 Dec	Ryanair
06 Dec - 08 Dec	Ryanair
05 Dec - 09 Dec	Wizz Air Malta
23 Dec - 31 Dec	Ryanair
24 Dec - 31 Dec	Ryanair
31 Dec - 03 Jan	Ryanair
31 Dec - 02 Jan	Ryanair
29 Dec - 02 Jan	Ryanair

Also check the deals for one-way flights from Pisa to Sofia in December.

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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Cheapest return flights from Pisa to Sofia in December from 98€

Return flights