Earn point on your loyalty program!arrow arc left

Cheap flights from Chicago (CHI) to Sofia (SOF)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Chicago (CHI) to Sofia (SOF)

How to find the cheapest flight from Chicago (CHI) to Sofia (SOF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Chicago (CHI) to Sofia (SOF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Chicago (CHI) to Sofia (SOF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Chicago to Sofia in January , February 2026

26 Jan - 18 Feb $ 496.00
CHI
Chicago
Austrian Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
Austrian Airlines
1 STOPS
CHI
Chicago
Pick dates
18 Jan - 06 Feb $ 1,070.00
CHI
Chicago
Qatar Airways
1 STOPS
SOF
Sofia
SOF
Sofia
Qatar Airways
1 STOPS
CHI
Chicago
Pick dates
19 Jan - 08 Feb $ 1,278.00
CHI
Chicago
LOT Polish Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
LOT Polish Airlines
1 STOPS
CHI
Chicago
Pick dates

Last minute flights from Chicago to Sofia

17 Jan - 31 Jan $ 613.00
CHI
Chicago
United Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
United Airlines
1 STOPS
CHI
Chicago
Pick dates
17 Jan - 31 Jan $ 613.00
CHI
Chicago
United Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
United Airlines
1 STOPS
CHI
Chicago
Pick dates
17 Jan - 31 Jan $ 992.00
CHI
Chicago
LOT Polish Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
LOT Polish Airlines
1 STOPS
CHI
Chicago
Pick dates

One-way flights to Sofia from Chicago

4:05 PM - 2:40 PM
Wizz Air
2 Stops
16h 5m
CHI - SOF
$ 337
Kiwi
Pick dates
9:50 PM - 3:30 PM
Lufthansa
1 Stops
12h 30m
CHI - SOF
$ 412
Kiwi
Pick dates
6:00 PM - 10:25 AM
United Airlines
1 Stops
11h 15m
CHI - SOF
$ 432
Kiwi
Pick dates

How to find the cheapest flight from Chicago (CHI) to Sofia (SOF)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Chicago (CHI) to Sofia (SOF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Chicago (CHI) to Sofia (SOF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.