Cheapest return AMS–SOF flights, September

AirHint found the following cheapest return flights from Amsterdam (AMS) to Sofia (SOF) in September 2026 (see full year).

Return flights

13 Sep - 17 Sep Ryanair
07 Sep - 01 Oct easyJet
20 Sep - 26 Sep Air Serbia
10 Sep - 18 Sep Air Serbia
18 Sep - 22 Sep easyJet
09 Sep - 10 Sep Air Serbia
02 Sep - 09 Sep Air Serbia
24 Sep - 27 Sep easyJet Europe
11 Sep - 15 Sep Air Serbia
03 Sep - 06 Sep Air Serbia
01 Sep - 13 Sep Air Serbia
20 Sep - 09 Oct SKY express

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

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