Cheap flights from Chicago to Southwest Idaho

View AU$146 flight on Sun, 31 Aug. 2025Opens in a new window

Popular airlines from Chicago to Southwest Idaho

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Cheap Flights from Chicago (CHI) to Southwest Idaho (BOI)

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.

Delta
Sun, 31 Aug. - Sun, 7 Sep.
ORD
Chicago
BOI
Boise
AU$326 Return, found 6 days ago
AU$326
Return
found 6 days ago
Select Delta flight, departing Sun, 31 Aug. from Chicago to Boise, returning Sun, 7 Sep., priced at AU$326 found 6 days ago
Alaska Airlines
Sun, 31 Aug. - Sun, 7 Sep.
ORD
Chicago
BOI
Boise
AU$359 Return, found 6 days ago
AU$359
Return
found 6 days ago
Select Alaska Airlines flight, departing Sun, 31 Aug. from Chicago to Boise, returning Sun, 7 Sep., priced at AU$359 found 6 days ago
Delta
Sun, 31 Aug. - Sun, 7 Sep.
ORD
Chicago
BOI
Boise
AU$360 Return, found 6 days ago
AU$360
Return
found 6 days ago
Select Delta flight, departing Sun, 31 Aug. from Chicago to Boise, returning Sun, 7 Sep., priced at AU$360 found 6 days ago
Delta
Sun, 31 Aug. - Sun, 7 Sep.
ORD
Chicago
BOI
Boise
AU$369 Return, found 6 days ago
AU$369
Return
found 6 days ago
Select Delta flight, departing Sun, 31 Aug. from Chicago to Boise, returning Sun, 7 Sep., priced at AU$369 found 6 days ago
United
Sun, 31 Aug. - Sun, 7 Sep.
ORD
Chicago
BOI
Boise
AU$387 Return, found 6 days ago
AU$387
Return
found 6 days ago
Select United flight, departing Sun, 31 Aug. from Chicago to Boise, returning Sun, 7 Sep., priced at AU$387 found 6 days ago
American Airlines
Sun, 31 Aug. - Sun, 7 Sep.
ORD
Chicago
BOI
Boise
AU$450 Return, found 6 days ago
AU$450
Return
found 6 days ago
Select American Airlines flight, departing Sun, 31 Aug. from Chicago to Boise, returning Sun, 7 Sep., priced at AU$450 found 6 days ago

Find the cheapest month to fly from Chicago (CHI) to Boise (BOI)

October is typically the cheapest month to fly

From AU$186 - AU$642 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.