Cheapest return flights from Athens to Sofia in September from $94

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

Return flights

09 Sep - 14 Sep Aegean Airlines direct
28 Sep - 03 Oct Aegean Airlines direct
18 Sep - 21 Sep Aegean Airlines direct
24 Sep - 27 Sep Aegean Airlines direct
30 Sep - 02 Oct SKY express direct
30 Sep - 09 Oct SKY express direct
30 Sep - 16 Oct SKY express direct
24 Sep - 02 Oct SKY express direct
24 Sep - 09 Oct SKY express direct
21 Sep - 02 Oct SKY express direct
21 Sep - 09 Oct SKY express direct
09 Sep - 27 Sep SKY express direct
09 Sep - 10 Sep SKY express direct
21 Sep - 27 Sep SKY express direct
30 Sep - 01 Oct SKY express direct
30 Sep - 04 Oct SKY express direct
09 Sep - 11 Sep SKY express direct
24 Sep - 30 Sep SKY express direct
21 Sep - 30 Sep SKY express direct
23 Sep - 27 Sep SKY express direct

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

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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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