Cheap Frontier Airlines flights Ontario (ONT) to Knoxville (TYS)

Cheap Frontier Airlines flights Ontario (ONT) to Knoxville (TYS)

Prices were available within the past 7 days and start at for one-way flights and $268 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Nov 6 - Sun, Nov 9

ONT

Ontario

TYS

Knoxville

$268 Roundtrip, found 1 day ago

$268

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Nov 6 from Ontario to Knoxville, returning Sun, Nov 9, priced at $268 found 1 day ago