Cheapest return flights from Chicago to Sofia in December from $1062

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

Return flights

15 Dec - 29 Dec KLM
17 Dec - 07 Jan Air France
18 Dec - 08 Jan Air France
18 Dec - 29 Dec Air France
10 Dec - 04 Jan KLM
19 Dec - 07 Jan Air France
12 Dec - 04 Jan Air France
11 Dec - 04 Jan Air France
17 Dec - 04 Jan Air France
18 Dec - 04 Jan Air France

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

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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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