Cheapest return flights from Chicago to Sofia in April from $670

Best time to book flights for Chicago (MDW) to Sofia (SOF) flights at AirHint

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

Return flights

08 Apr - 23 Apr Air France
09 Apr - 20 Apr KLM
27 Apr - 04 May Frontier Airlines
18 Apr - 27 Apr Air France
28 Apr - 05 May Air France

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

Skyscanner

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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