Cheapest return flights from New York to Sofia in September from $383

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

Return flights

08 Sep - 23 Sep SWISS
10 Sep - 17 Sep SWISS
03 Sep - 17 Sep SWISS
08 Sep - 24 Sep Austrian Airlines
01 Sep - 16 Sep Austrian Airlines
09 Sep - 23 Sep SWISS
30 Sep - 17 Oct Lufthansa
01 Sep - 08 Sep SWISS
28 Sep - 14 Oct SWISS
11 Sep - 25 Sep SWISS
11 Sep - 18 Sep SWISS
21 Sep - 05 Oct SWISS
11 Sep - 21 Sep SWISS

Also check the deals for one-way flights from New York 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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