Cheapest return flights from Warsaw to Sofia in September from $192

AirHint found the following cheapest return flights from Warsaw (WMI) to Sofia (SOF) in September 2025 (see full year).

Return flights

19 Sep - 26 Sep Ryanair
24 Sep - 03 Oct Ryanair
29 Sep - 06 Oct Ryanair
20 Sep - 25 Sep Ryanair
02 Sep - 09 Sep Ryanair
14 Sep - 15 Sep Ryanair
09 Sep - 11 Sep Ryanair
08 Sep - 10 Sep Ryanair
29 Sep - 01 Oct Ryanair
19 Sep - 23 Sep Ryanair
22 Sep - 26 Sep Ryanair
05 Sep - 12 Sep Ryanair
26 Sep - 30 Sep Ryanair

Also check the deals for one-way flights from Warsaw to Sofia in September.

Skyscanner

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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