Cheap flights from Boston to Southwest Idaho

View AU$236 flight on Tue, 9 Sep. 2025Opens in a new window

Popular airlines from Boston 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 Boston (BOS) 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.

American Airlines
Thu, 4 Sep. - Thu, 11 Sep.
BOS
Boston
BOI
Boise
AU$474 Return, found 3 days ago
AU$474
Return
found 3 days ago
Select American Airlines flight, departing Thu, 4 Sep. from Boston to Boise, returning Thu, 11 Sep., priced at AU$474 found 3 days ago
Delta
Thu, 4 Sep. - Thu, 11 Sep.
BOS
Boston
BOI
Boise
AU$474 Return, found 3 days ago
AU$474
Return
found 3 days ago
Select Delta flight, departing Thu, 4 Sep. from Boston to Boise, returning Thu, 11 Sep., priced at AU$474 found 3 days ago
American Airlines
Thu, 4 Sep. - Thu, 11 Sep.
BOS
Boston
BOI
Boise
AU$482 Return, found 3 days ago
AU$482
Return
found 3 days ago
Select American Airlines flight, departing Thu, 4 Sep. from Boston to Boise, returning Thu, 11 Sep., priced at AU$482 found 3 days ago
American Airlines
Thu, 4 Sep. - Thu, 11 Sep.
BOS
Boston
BOI
Boise
AU$515 Return, found 3 days ago
AU$515
Return
found 3 days ago
Select American Airlines flight, departing Thu, 4 Sep. from Boston to Boise, returning Thu, 11 Sep., priced at AU$515 found 3 days ago
Alaska Airlines
Thu, 4 Sep. - Thu, 11 Sep.
BOS
Boston
BOI
Boise
AU$529 Return, found 3 days ago
AU$529
Return
found 3 days ago
Select Alaska Airlines flight, departing Thu, 4 Sep. from Boston to Boise, returning Thu, 11 Sep., priced at AU$529 found 3 days ago
United
Thu, 4 Sep. - Thu, 11 Sep.
BOS
Boston
BOI
Boise
AU$551 Return, found 3 days ago
AU$551
Return
found 3 days ago
Select United flight, departing Thu, 4 Sep. from Boston to Boise, returning Thu, 11 Sep., priced at AU$551 found 3 days ago

Find the cheapest month to fly from Boston (BOS) to Boise (BOI)

October is typically the cheapest month to fly

From AU$307 - AU$749 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.