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

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

Prices were available within the past 7 days and start at for one-way flights and $200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Feb 19 - Thu, Feb 26

FSD

Sioux Falls

ONT

Ontario

$200 Roundtrip, found 2 days ago

$200

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Feb 19 from Sioux Falls to Ontario, returning Thu, Feb 26, priced at $200 found 2 days ago

Mon, Mar 2 - Mon, Mar 9

FSD

Sioux Falls

ONT

Ontario

$204 Roundtrip, found 2 days ago

$204

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Mar 2 from Sioux Falls to Ontario, returning Mon, Mar 9, priced at $204 found 2 days ago

Mon, Mar 2 - Mon, Mar 16

FSD

Sioux Falls

ONT

Ontario

$205 Roundtrip, found 2 days ago

$205

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Mar 2 from Sioux Falls to Ontario, returning Mon, Mar 16, priced at $205 found 2 days ago

Thu, Feb 26 - Thu, Mar 5

FSD

Sioux Falls

ONT

Ontario

$209 Roundtrip, found 1 day ago

$209

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Feb 26 from Sioux Falls to Ontario, returning Thu, Mar 5, priced at $209 found 1 day ago

Thu, Feb 19 - Fri, Feb 20

FSD

Sioux Falls

ONT

Ontario

$220 Roundtrip, found 2 days ago

$220

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Feb 19 from Sioux Falls to Ontario, returning Fri, Feb 20, priced at $220 found 2 days ago

Thu, Feb 19 - Thu, Mar 5

FSD

Sioux Falls

ONT

Ontario

$224 Roundtrip, found 2 days ago

$224

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Feb 19 from Sioux Falls to Ontario, returning Thu, Mar 5, priced at $224 found 2 days ago

Sun, Mar 1 - Mon, Mar 16

FSD

Sioux Falls

ONT

Ontario

$225 Roundtrip, found 2 days ago

$225

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Mar 1 from Sioux Falls to Ontario, returning Mon, Mar 16, priced at $225 found 2 days ago

Mon, Feb 23 - Mon, Mar 9

FSD

Sioux Falls

ONT

Ontario

$230 Roundtrip, found 1 day ago

$230

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Feb 23 from Sioux Falls to Ontario, returning Mon, Mar 9, priced at $230 found 1 day ago

Mon, Feb 16 - Thu, Feb 26

FSD

Sioux Falls

ONT

Ontario

$240 Roundtrip, found 1 day ago

$240

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Feb 16 from Sioux Falls to Ontario, returning Thu, Feb 26, priced at $240 found 1 day ago

Thu, Feb 26 - Fri, Feb 27

FSD

Sioux Falls

ONT

Ontario

$245 Roundtrip, found 1 day ago

$245

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Feb 26 from Sioux Falls to Ontario, returning Fri, Feb 27, priced at $245 found 1 day ago

Mon, Mar 2 - Fri, Mar 6

FSD

Sioux Falls

ONT

Ontario

$254 Roundtrip, found 2 days ago

$254

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Mar 2 from Sioux Falls to Ontario, returning Fri, Mar 6, priced at $254 found 2 days ago

Mon, Feb 16 - Fri, Feb 20

FSD

Sioux Falls

ONT

Ontario

$255 Roundtrip, found 2 days ago

$255

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Feb 16 from Sioux Falls to Ontario, returning Fri, Feb 20, priced at $255 found 2 days ago