Cheapest return flights from Chicago to Sofia in August from 472€

AirHint found the following cheapest return flights from Chicago (ORD) to Sofia (SOF) in August 2025 (see full year).

Return flights

25 Aug - 10 Sep Turkish Airlines
27 Aug - 03 Sep Turkish Airlines
24 Aug - 07 Sep Lufthansa
26 Aug - 30 Sep SWISS
20 Aug - 27 Aug Air Canada
23 Aug - 21 Sep SWISS
27 Aug - 30 Sep United
31 Aug - 19 Sep Lufthansa
22 Aug - 27 Aug Turkish Airlines

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

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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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