Cheap flights from Denver to Southern Idaho

View AU$151 flight on Wed, 10 Sep. 2025Opens in a new window

Popular airlines from Denver to Southern 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 Denver (DEN) to Southern Idaho (IDA)

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.

Alaska Airlines
Wed, 10 Sep. - Wed, 17 Sep.
DEN
Denver
BOI
Boise
AU$301 Return, found 10 hours ago
AU$301
Return
found 10 hours ago
Select Alaska Airlines flight, departing Wed, 10 Sep. from Denver to Boise, returning Wed, 17 Sep., priced at AU$301 found 10 hours ago
Alaska Airlines
Wed, 10 Sep. - Wed, 17 Sep.
DEN
Denver
BOI
Boise
AU$315 Return, found 10 hours ago
AU$315
Return
found 10 hours ago
Select Alaska Airlines flight, departing Wed, 10 Sep. from Denver to Boise, returning Wed, 17 Sep., priced at AU$315 found 10 hours ago
Alaska Airlines
Wed, 10 Sep. - Wed, 17 Sep.
DEN
Denver
BOI
Boise
AU$318 Return, found 10 hours ago
AU$318
Return
found 10 hours ago
Select Alaska Airlines flight, departing Wed, 10 Sep. from Denver to Boise, returning Wed, 17 Sep., priced at AU$318 found 10 hours ago
American Airlines
Wed, 10 Sep. - Wed, 17 Sep.
DEN
Denver
BOI
Boise
AU$333 Return, found 10 hours ago
AU$333
Return
found 10 hours ago
Select American Airlines flight, departing Wed, 10 Sep. from Denver to Boise, returning Wed, 17 Sep., priced at AU$333 found 10 hours ago
Delta
Wed, 10 Sep. - Wed, 17 Sep.
DEN
Denver
BOI
Boise
AU$333 Return, found 10 hours ago
AU$333
Return
found 10 hours ago
Select Delta flight, departing Wed, 10 Sep. from Denver to Boise, returning Wed, 17 Sep., priced at AU$333 found 10 hours ago
United
Wed, 10 Sep. - Wed, 17 Sep.
DEN
Denver
BOI
Boise
AU$355 Return, found 10 hours ago
AU$355
Return
found 10 hours ago
Select United flight, departing Wed, 10 Sep. from Denver to Boise, returning Wed, 17 Sep., priced at AU$355 found 10 hours ago

Find the cheapest month to fly from Denver (DEN) to Boise (BOI)

May is typically the cheapest month to fly

From AU$166 - AU$490 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.