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

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

How to find the cheapest flight from Chicago (CHI) to Sofia (SOF)
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How to find the cheapest flight from Chicago (CHI) to Sofia (SOF)
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How to find the cheapest flight from Chicago (CHI) to Sofia (SOF)
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Cheap flights from Chicago to Sofia in July , August 2026

29 Jul - 21 Aug $ 923.00
CHI
Chicago
United Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
United Airlines
1 STOPS
CHI
Chicago
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27 Jul - 13 Aug $ 970.00
CHI
Chicago
Swiss International Air Lines
1 STOPS
SOF
Sofia
SOF
Sofia
Swiss International Air Lines
1 STOPS
CHI
Chicago
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27 Jul - 13 Aug $ 1,123.00
CHI
Chicago
LOT Polish Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
LOT Polish Airlines
1 STOPS
CHI
Chicago
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Last minute flights from Chicago to Sofia

27 Jul - 31 Jul $ 1,402.00
CHI
Chicago
Lufthansa
1 STOPS
SOF
Sofia
SOF
Sofia
Lufthansa
1 STOPS
CHI
Chicago
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28 Jul - 31 Jul $ 1,587.00
CHI
Chicago
United Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
United Airlines
1 STOPS
CHI
Chicago
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28 Jul - 31 Jul $ 1,591.00
CHI
Chicago
United Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
United Airlines
1 STOPS
CHI
Chicago
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One-way flights to Sofia from Chicago

8:10 PM - 7:00 PM
Turkish Airlines
1 Stops
16h 10m
CHI - SOF
$ 601
Kiwi
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9:50 PM - 2:45 PM
LOT Polish Airlines
1 Stops
12h
CHI - SOF
$ 608
Kiwi
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4:20 PM - 9:10 AM
Austrian Airlines
1 Stops
11h 20m
CHI - SOF
$ 623
Kiwi
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How to find the cheapest flight from Chicago (CHI) to Sofia (SOF)

Related info for your journey
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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.