$121 Cheap Frontier Airlines flights Boise (BOI) to San Francisco (SFO)

$121 Cheap Frontier Airlines flights Boise (BOI) to San Francisco (SFO)

Prices were available within the past 7 days and start at $121 for one-way flights and $155 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Feb 9 - Sat, Feb 21

BOI

Boise

SFO

San Francisco

$155 Roundtrip, just found

$155

Roundtrip

just found

Select Frontier Airlines flight, departing Mon, Feb 9 from Boise to San Francisco, returning Sat, Feb 21, priced at $155 just found

Mon, Jan 12 - Thu, Jan 29

BOI

Boise

SFO

San Francisco

$172 Roundtrip, just found

$172

Roundtrip

just found

Select Frontier Airlines flight, departing Mon, Jan 12 from Boise to San Francisco, returning Thu, Jan 29, priced at $172 just found

Fri, Feb 6 - Sat, Feb 21

BOI

Boise

SFO

San Francisco

$190 Roundtrip, just found

$190

Roundtrip

just found

Select Frontier Airlines flight, departing Fri, Feb 6 from Boise to San Francisco, returning Sat, Feb 21, priced at $190 just found

Sun, Feb 22 - Sat, Mar 7

BOI

Boise

SFO

San Francisco

$207 Roundtrip, just found

$207

Roundtrip

just found

Select Frontier Airlines flight, departing Sun, Feb 22 from Boise to San Francisco, returning Sat, Mar 7, priced at $207 just found