Flights to Southern Idaho from Portland - ￥14,170

View ￥14,170 flight on Tue, Aug 19, 2025Opens in a new window

Popular airlines from Portland to Southern Idaho

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

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Cheap Flights from Portland to Southern Idaho (PDX-IDA)

Prices were available within the past 7 days and start at ￥14,170 for one-way flights and ￥28,340 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Sep 4 - Thu, Sep 11
PDX
Portland
BOI
Boise
￥28,340 Roundtrip, found 1 day ago
￥28,340
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Sep 4 from Portland to Boise, returning Thu, Sep 11, priced at ￥28,340 found 1 day ago
Delta
Thu, Sep 4 - Thu, Sep 11
PDX
Portland
BOI
Boise
￥31,890 Roundtrip, found 1 day ago
￥31,890
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Sep 4 from Portland to Boise, returning Thu, Sep 11, priced at ￥31,890 found 1 day ago
Delta
Thu, Sep 4 - Thu, Sep 11
PDX
Portland
BOI
Boise
￥33,390 Roundtrip, found 1 day ago
￥33,390
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Sep 4 from Portland to Boise, returning Thu, Sep 11, priced at ￥33,390 found 1 day ago
United
Thu, Sep 4 - Thu, Sep 11
PDX
Portland
BOI
Boise
￥36,830 Roundtrip, found 1 day ago
￥36,830
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 4 from Portland to Boise, returning Thu, Sep 11, priced at ￥36,830 found 1 day ago
United
Thu, Sep 4 - Thu, Sep 11
PDX
Portland
BOI
Boise
￥38,020 Roundtrip, found 1 day ago
￥38,020
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 4 from Portland to Boise, returning Thu, Sep 11, priced at ￥38,020 found 1 day ago
American Airlines
Thu, Sep 4 - Thu, Sep 11
PDX
Portland
BOI
Boise
￥52,200 Roundtrip, found 1 day ago
￥52,200
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Sep 4 from Portland to Boise, returning Thu, Sep 11, priced at ￥52,200 found 1 day ago

Find the cheapest month to fly from Portland (PDX) to Boise (BOI)

September is typically the cheapest month to fly

From ￥13,276 - ￥32,182 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.