Cheapest return ORD–SOF flights, June

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

Return flights

01 Jun - 08 Jun Icelandair
01 Jun - 16 Jun Icelandair
08 Jun - 22 Jun Aer Lingus
16 Jun - 06 Jul Spirit Airlines
25 Jun - 13 Jul HiSky Europe
11 Jun - 19 Jun Spirit Airlines
07 Jun - 21 Jun HiSky Europe
14 Jun - 06 Jul HiSky Europe
15 Jun - 07 Jul Spirit Airlines
16 Jun - 04 Jul Spirit Airlines
17 Jun - 07 Jul Spirit Airlines
13 Jun - 27 Jun Aer Lingus
10 Jun - 24 Jun Spirit Airlines
14 Jun - 03 Jul Frontier Airlines
15 Jun - 03 Jul Spirit Airlines
26 Jun - 13 Jul Frontier Airlines
21 Jun - 15 Jul Turkish Airlines

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

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