$114 Cheap Frontier Airlines flights Sioux Falls (FSD) to Ontario (ONT)

$114 Cheap Frontier Airlines flights Sioux Falls (FSD) to Ontario (ONT)

Prices were available within the past 7 days and start at $114 for one-way flights and $218 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Aug 4 - Wed, Aug 13

FSD

Sioux Falls

ONT

Ontario

$218 Roundtrip, found 1 day ago

$218

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Aug 4 from Sioux Falls to Ontario, returning Wed, Aug 13, priced at $218 found 1 day ago

Mon, Aug 4 - Thu, Aug 14

FSD

Sioux Falls

ONT

Ontario

$228 Roundtrip, found 1 day ago

$228

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Aug 4 from Sioux Falls to Ontario, returning Thu, Aug 14, priced at $228 found 1 day ago

Mon, Aug 4 - Sun, Aug 10

FSD

Sioux Falls

ONT

Ontario

$308 Roundtrip, found 1 day ago

$308

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Aug 4 from Sioux Falls to Ontario, returning Sun, Aug 10, priced at $308 found 1 day ago