Cheap flights from Chicago to South Central Montana from CA $131

View CA $131 flight on Wed, Oct. 15, 2025Opens in a new window

Popular airlines from Chicago to South Central Montana

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • American Airlines

    American Airlines

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Hawaiian Airlines

    Hawaiian Airlines

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Cheap flights from Chicago (CHI) to South Central Montana (BIL)

Prices were available within the past 7 days and start at CA $131 for one-way flights and CA $262 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Sep. 15 - Fri, Sep. 26
ORD
Chicago
BZN
Bozeman
CA $262 Roundtrip, found 3 days ago
CA $262
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Sep. 15 from Chicago to Bozeman, returning Fri, Sep. 26, priced at CA $262 found 3 days ago
American Airlines
Mon, Sep. 15 - Fri, Sep. 26
ORD
Chicago
BZN
Bozeman
CA $275 Roundtrip, found 3 days ago
CA $275
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Sep. 15 from Chicago to Bozeman, returning Fri, Sep. 26, priced at CA $275 found 3 days ago
Alaska Airlines
Mon, Sep. 15 - Fri, Sep. 26
ORD
Chicago
BZN
Bozeman
CA $288 Roundtrip, found 3 days ago
CA $288
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Sep. 15 from Chicago to Bozeman, returning Fri, Sep. 26, priced at CA $288 found 3 days ago
Delta
Thu, Sep. 4 - Mon, Sep. 8
ORD
Chicago
BZN
Bozeman
CA $295 Roundtrip, found 6 days ago
CA $295
Roundtrip
found 6 days ago
Select Delta flight, departing Thu, Sep. 4 from Chicago to Bozeman, returning Mon, Sep. 8, priced at CA $295 found 6 days ago
United
Wed, Aug. 13 - Wed, Aug. 20
ORD
Chicago
HLN
Helena
CA $679 Roundtrip, found 2 days ago
CA $679
Roundtrip
found 2 days ago
Select United flight, departing Wed, Aug. 13 from Chicago to Helena, returning Wed, Aug. 20, priced at CA $679 found 2 days ago
Hawaiian Airlines
Mon, Aug. 4 - Tue, Aug. 26
ORD
Chicago
HLN
Helena
CA $976 Roundtrip, found 6 days ago
CA $976
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Mon, Aug. 4 from Chicago to Helena, returning Tue, Aug. 26, priced at CA $976 found 6 days ago

Find the cheapest month to fly from Chicago (CHI) to Bozeman (BZN)

August is typically the cheapest month to fly

From CA $232 - CA $899 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.