AirHint found the following cheapest one-way flights from Chicago (ORD) to Sofia (SOF) in June 2026 (see full year).
One-Way flights
| 07 Jun | Icelandair | ||
| 09 Jun | Spirit Airlines | ||
| 10 Jun | Spirit Airlines | ||
| 08 Jun | Aer Lingus | ||
| 12 Jun | WestJet | ||
| 11 Jun | HiSky Europe | ||
| 20 Jun | TAP |
Also check the deals for return flights from Chicago to Sofia in June.
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