$647 Cheap United flights San Francisco (SFO) to Knoxville (TYS)

$647 Cheap United flights San Francisco (SFO) to Knoxville (TYS)

Prices were available within the past 7 days and start at $647 for one-way flights and $628 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Dec 23 - Mon, Dec 29

SFO

San Francisco

TYS

Knoxville

$628 Roundtrip, found 1 day ago

$628

Roundtrip

found 1 day ago

Select United flight, departing Tue, Dec 23 from San Francisco to Knoxville, returning Mon, Dec 29, priced at $628 found 1 day ago

Wed, Dec 24 - Mon, Dec 29

SFO

San Francisco

TYS

Knoxville

$662 Roundtrip, found 1 day ago

$662

Roundtrip

found 1 day ago

Select United flight, departing Wed, Dec 24 from San Francisco to Knoxville, returning Mon, Dec 29, priced at $662 found 1 day ago

Tue, Dec 23 - Thu, Dec 25

SFO

San Francisco

TYS

Knoxville

$692 Roundtrip, found 1 day ago

$692

Roundtrip

found 1 day ago

Select United flight, departing Tue, Dec 23 from San Francisco to Knoxville, returning Thu, Dec 25, priced at $692 found 1 day ago

Wed, Dec 24 - Thu, Dec 25

SFO

San Francisco

TYS

Knoxville

$754 Roundtrip, found 1 day ago

$754

Roundtrip

found 1 day ago

Select United flight, departing Wed, Dec 24 from San Francisco to Knoxville, returning Thu, Dec 25, priced at $754 found 1 day ago

Tue, Dec 23 - Wed, Dec 31

SFO

San Francisco

TYS

Knoxville

$825 Roundtrip, found 1 day ago

$825

Roundtrip

found 1 day ago

Select United flight, departing Tue, Dec 23 from San Francisco to Knoxville, returning Wed, Dec 31, priced at $825 found 1 day ago

Wed, Dec 24 - Wed, Dec 31

SFO

San Francisco

TYS

Knoxville

$859 Roundtrip, found 1 day ago

$859

Roundtrip

found 1 day ago

Select United flight, departing Wed, Dec 24 from San Francisco to Knoxville, returning Wed, Dec 31, priced at $859 found 1 day ago