Cheap flights from Baltimore to Southern Idaho

View AU$262 flight on Thu, 4 Sep. 2025Opens in a new window

Popular airlines from Baltimore 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 Baltimore (WAS) 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
Mon, 15 Sep. - Fri, 19 Sep.
BWI
Baltimore
IDA
Idaho Falls
AU$620 Return, found 5 days ago
AU$620
Return
found 5 days ago
Select Alaska Airlines flight, departing Mon, 15 Sep. from Baltimore to Idaho Falls, returning Fri, 19 Sep., priced at AU$620 found 5 days ago
American Airlines
Sun, 24 May - Fri, 29 May
DCA
Washington
JAC
Jackson
AU$636 Return, found 19 hours ago
AU$636
Return
found 19 hours ago
Select American Airlines flight, departing Sun, 24 May from Washington to Jackson, returning Fri, 29 May, priced at AU$636 found 19 hours ago
American Airlines
Mon, 15 Sep. - Fri, 19 Sep.
DCA
Washington
IDA
Idaho Falls
AU$648 Return, found 5 days ago
AU$648
Return
found 5 days ago
Select American Airlines flight, departing Mon, 15 Sep. from Washington to Idaho Falls, returning Fri, 19 Sep., priced at AU$648 found 5 days ago
American Airlines
Sun, 24 May - Fri, 29 May
BWI
Baltimore
JAC
Jackson
AU$656 Return, found 19 hours ago
AU$656
Return
found 19 hours ago
Select American Airlines flight, departing Sun, 24 May from Baltimore to Jackson, returning Fri, 29 May, priced at AU$656 found 19 hours ago
Delta
Mon, 15 Sep. - Fri, 19 Sep.
DCA
Washington
IDA
Idaho Falls
AU$686 Return, found 5 days ago
AU$686
Return
found 5 days ago
Select Delta flight, departing Mon, 15 Sep. from Washington to Idaho Falls, returning Fri, 19 Sep., priced at AU$686 found 5 days ago
United
Sun, 24 May - Fri, 29 May
DCA
Washington
JAC
Jackson
AU$744 Return, found 19 hours ago
AU$744
Return
found 19 hours ago
Select United flight, departing Sun, 24 May from Washington to Jackson, returning Fri, 29 May, priced at AU$744 found 19 hours ago

Find the cheapest month to fly from Baltimore (BWI) to Boise (BOI)

October is typically the cheapest month to fly

From AU$247 - AU$776 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.