$155 Cheap United flights San Francisco (SFO) to Knoxville (TYS)

$155 Cheap United flights San Francisco (SFO) to Knoxville (TYS)

Prices were available within the past 7 days and start at $155 for one-way flights and $409 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 7 - Fri, Oct 10

SFO

San Francisco

TYS

Knoxville

$409 Roundtrip, found 12 hours ago

$409

Roundtrip

found 12 hours ago

Select United flight, departing Tue, Oct 7 from San Francisco to Knoxville, returning Fri, Oct 10, priced at $409 found 12 hours ago

Fri, Jul 18 - Sun, Jul 20

SFO

San Francisco

TYS

Knoxville

$463 Roundtrip, found 3 days ago

$463

Roundtrip

found 3 days ago

Select United flight, departing Fri, Jul 18 from San Francisco to Knoxville, returning Sun, Jul 20, priced at $463 found 3 days ago

Sat, Oct 11 - Tue, Oct 14

SFO

San Francisco

TYS

Knoxville

$464 Roundtrip, found 12 hours ago

$464

Roundtrip

found 12 hours ago

Select United flight, departing Sat, Oct 11 from San Francisco to Knoxville, returning Tue, Oct 14, priced at $464 found 12 hours ago

Fri, Jul 18 - Sun, Jul 20

SFO

San Francisco

TYS

Knoxville

$472 Roundtrip, found 3 days ago

$472

Roundtrip

found 3 days ago

Select United flight, departing Fri, Jul 18 from San Francisco to Knoxville, returning Sun, Jul 20, priced at $472 found 3 days ago

Fri, Jul 18 - Sun, Jul 20

SFO

San Francisco

TYS

Knoxville

$505 Roundtrip, found 3 days ago

$505

Roundtrip

found 3 days ago

Select United flight, departing Fri, Jul 18 from San Francisco to Knoxville, returning Sun, Jul 20, priced at $505 found 3 days ago

Fri, Oct 10 - Tue, Oct 14

SFO

San Francisco

TYS

Knoxville

$512 Roundtrip, found 12 hours ago

$512

Roundtrip

found 12 hours ago

Select United flight, departing Fri, Oct 10 from San Francisco to Knoxville, returning Tue, Oct 14, priced at $512 found 12 hours ago