Cheap flights from Chicago to Balkan Mountains

View AU$619 flight on Wed, 4 Feb. 2026Opens in a new window

Popular airlines from Chicago to Balkan Mountains

  • Air Canada

    Air Canada

  • Air France

    Air France

  • Air Serbia

    Air Serbia

  • KLM

    KLM

  • Lufthansa

    Lufthansa

  • LOT-Polish Airlines

    LOT-Polish Airlines

  • Austrian Airlines

    Austrian Airlines

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Cheap Flights from Chicago (CHI) to Balkan Mountains (SOF)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Thu, 5 Feb. - Thu, 19 Feb.
ORD
Chicago
SOF
Sofia
AU$886 Return, found 7 hours ago
AU$886
Return
found 7 hours ago
Select Turkish Airlines flight, departing Thu, 5 Feb. from Chicago to Sofia, returning Thu, 19 Feb., priced at AU$886 found 7 hours ago
Lufthansa
Thu, 5 Feb. - Thu, 19 Feb.
ORD
Chicago
SOF
Sofia
AU$942 Return, found 7 hours ago
AU$942
Return
found 7 hours ago
Select Lufthansa flight, departing Thu, 5 Feb. from Chicago to Sofia, returning Thu, 19 Feb., priced at AU$942 found 7 hours ago
United
Wed, 4 Feb. - Wed, 18 Feb.
ORD
Chicago
SOF
Sofia
AU$947 Return, found 1 day ago
AU$947
Return
found 1 day ago
Select United flight, departing Wed, 4 Feb. from Chicago to Sofia, returning Wed, 18 Feb., priced at AU$947 found 1 day ago
Lufthansa
Thu, 5 Feb. - Thu, 19 Feb.
ORD
Chicago
SOF
Sofia
AU$952 Return, found 7 hours ago
AU$952
Return
found 7 hours ago
Select Lufthansa flight, departing Thu, 5 Feb. from Chicago to Sofia, returning Thu, 19 Feb., priced at AU$952 found 7 hours ago
Austrian Airlines
Wed, 4 Feb. - Wed, 18 Feb.
ORD
Chicago
SOF
Sofia
AU$954 Return, found 1 day ago
AU$954
Return
found 1 day ago
Select Austrian Airlines flight, departing Wed, 4 Feb. from Chicago to Sofia, returning Wed, 18 Feb., priced at AU$954 found 1 day ago
Air Canada
Wed, 4 Feb. - Wed, 18 Feb.
ORD
Chicago
SOF
Sofia
AU$957 Return, found 1 day ago
AU$957
Return
found 1 day ago
Select Air Canada flight, departing Wed, 4 Feb. from Chicago to Sofia, returning Wed, 18 Feb., priced at AU$957 found 1 day ago
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