Cheapest return flights from Cologne to Sofia in September from $140

Best time to book flights for Cologne (CGN) to Sofia (SOF) flights at AirHint

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

Return flights

19 Sep - 06 Oct Ryanair direct
22 Sep - 06 Oct Ryanair direct
05 Sep - 12 Sep Ryanair
19 Sep - 22 Sep Ryanair
05 Sep - 08 Sep Ryanair
22 Sep - 13 Oct Ryanair direct
26 Sep - 17 Oct Ryanair direct
19 Sep - 26 Sep Ryanair direct
05 Sep - 26 Sep Ryanair direct
22 Sep - 26 Sep Ryanair direct
15 Sep - 06 Oct Ryanair direct
19 Sep - 22 Sep Ryanair direct
05 Sep - 22 Sep Ryanair direct
26 Sep - 06 Oct Ryanair direct
05 Sep - 15 Sep Ryanair direct
26 Sep - 13 Oct Ryanair direct
05 Sep - 19 Sep Ryanair direct
19 Sep - 03 Oct Ryanair direct
22 Sep - 03 Oct Ryanair direct
26 Sep - 03 Oct Ryanair

Also check the deals for one-way flights from Cologne 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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