$279 Cheap Frontier Airlines flights San Francisco (SFO) to Knoxville (TYS)

$279 Cheap Frontier Airlines flights San Francisco (SFO) to Knoxville (TYS)

Prices were available within the past 7 days and start at $279 for one-way flights and $508 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jul 17 - Sun, Jul 20

SFO

San Francisco

TYS

Knoxville

$508 Roundtrip, found 16 hours ago

$508

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Thu, Jul 17 from San Francisco to Knoxville, returning Sun, Jul 20, priced at $508 found 16 hours ago

Thu, Jul 17 - Sun, Jul 20

SFO

San Francisco

TYS

Knoxville

$566 Roundtrip, found 16 hours ago

$566

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Thu, Jul 17 from San Francisco to Knoxville, returning Sun, Jul 20, priced at $566 found 16 hours ago