Cheapest return flights from Chicago to Sofia in August from 479€

AirHint found the following cheapest return flights from Chicago (ORD) to Sofia (SOF) in August 2026 (see full year).

Return flights

27 Aug - 21 Sep Turkish Airlines
23 Aug - 17 Sep Turkish Airlines
23 Aug - 15 Sep Turkish Airlines
23 Aug - 16 Sep Turkish Airlines
27 Aug - 20 Sep Turkish Airlines
28 Aug - 21 Sep Turkish Airlines
23 Aug - 14 Sep Lufthansa

Also check the deals for one-way flights from Chicago to Sofia in August.

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