Cheap United flights Knoxville (TYS) to Ontario (ONT)

Cheap United flights Knoxville (TYS) to Ontario (ONT)

Prices were available within the past 7 days and start at for one-way flights and $551 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Aug 20 - Fri, Aug 29

TYS

Knoxville

ONT

Ontario

$551 Roundtrip, found 9 hours ago

$551

Roundtrip

found 9 hours ago

Select United flight, departing Wed, Aug 20 from Knoxville to Ontario, returning Fri, Aug 29, priced at $551 found 9 hours ago

Sat, Aug 16 - Fri, Aug 29

TYS

Knoxville

ONT

Ontario

$559 Roundtrip, found 9 hours ago

$559

Roundtrip

found 9 hours ago

Select United flight, departing Sat, Aug 16 from Knoxville to Ontario, returning Fri, Aug 29, priced at $559 found 9 hours ago