Cheap flights from San Francisco to Southwest Idaho

View AU$106 flight on Sat, 18 Oct. 2025Opens in a new window

Popular airlines from San Francisco to Southwest Idaho

  • American Airlines

    American Airlines

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

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Cheap Flights from San Francisco (SJC) 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.

Alaska Airlines
Sat, 18 Oct. - Sat, 25 Oct.
SFO
San Francisco
BOI
Boise
AU$210 Return, found 3 hours ago
AU$210
Return
found 3 hours ago
Select Alaska Airlines flight, departing Sat, 18 Oct. from San Francisco to Boise, returning Sat, 25 Oct., priced at AU$210 found 3 hours ago
Alaska Airlines
Sat, 18 Oct. - Tue, 21 Oct.
SJC
San Jose
BOI
Boise
AU$211 Return, found 3 hours ago
AU$211
Return
found 3 hours ago
Select Alaska Airlines flight, departing Sat, 18 Oct. from San Jose to Boise, returning Tue, 21 Oct., priced at AU$211 found 3 hours ago
Alaska Airlines
Sat, 18 Oct. - Tue, 21 Oct.
SJC
San Jose
BOI
Boise
AU$226 Return, found 3 hours ago
AU$226
Return
found 3 hours ago
Select Alaska Airlines flight, departing Sat, 18 Oct. from San Jose to Boise, returning Tue, 21 Oct., priced at AU$226 found 3 hours ago
Delta
Sat, 18 Oct. - Sat, 25 Oct.
SFO
San Francisco
BOI
Boise
AU$241 Return, found 3 hours ago
AU$241
Return
found 3 hours ago
Select Delta flight, departing Sat, 18 Oct. from San Francisco to Boise, returning Sat, 25 Oct., priced at AU$241 found 3 hours ago
United
Sat, 18 Oct. - Sat, 25 Oct.
SFO
San Francisco
BOI
Boise
AU$280 Return, found 3 hours ago
AU$280
Return
found 3 hours ago
Select United flight, departing Sat, 18 Oct. from San Francisco to Boise, returning Sat, 25 Oct., priced at AU$280 found 3 hours ago
American Airlines
Sat, 18 Oct. - Tue, 21 Oct.
SJC
San Jose
BOI
Boise
AU$348 Return, found 3 hours ago
AU$348
Return
found 3 hours ago
Select American Airlines flight, departing Sat, 18 Oct. from San Jose to Boise, returning Tue, 21 Oct., priced at AU$348 found 3 hours ago

Find the cheapest month to fly from San Francisco (SFO) to Boise (BOI)

September is typically the cheapest month to fly

From AU$199 - AU$402 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.