$136 Cheap Frontier Airlines flights Washington (DCA) to Ontario (ONT)

$136 Cheap Frontier Airlines flights Washington (DCA) to Ontario (ONT)

Prices were available within the past 7 days and start at $136 for one-way flights and $245 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, May 30 - Mon, Jun 8

DCA

Washington

ONT

Ontario

$245 Roundtrip, found 12 hours ago

$245

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Sat, May 30 from Washington to Ontario, returning Mon, Jun 8, priced at $245 found 12 hours ago

Mon, Jun 1 - Mon, Jun 8

DCA

Washington

ONT

Ontario

$265 Roundtrip, found 12 hours ago

$265

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Mon, Jun 1 from Washington to Ontario, returning Mon, Jun 8, priced at $265 found 12 hours ago

Sun, May 31 - Mon, Jun 8

DCA

Washington

ONT

Ontario

$326 Roundtrip, found 12 hours ago

$326

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Sun, May 31 from Washington to Ontario, returning Mon, Jun 8, priced at $326 found 12 hours ago

Thu, Jun 4 - Mon, Jun 8

DCA

Washington

ONT

Ontario

$365 Roundtrip, found 12 hours ago

$365

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Thu, Jun 4 from Washington to Ontario, returning Mon, Jun 8, priced at $365 found 12 hours ago

Fri, May 22 - Thu, May 28

DCA

Washington

ONT

Ontario

$370 Roundtrip, found 3 days ago

$370

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, May 22 from Washington to Ontario, returning Thu, May 28, priced at $370 found 3 days ago

Tue, Apr 7 - Mon, Apr 13

DCA

Washington

ONT

Ontario

$422 Roundtrip, found 1 day ago

$422

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Apr 7 from Washington to Ontario, returning Mon, Apr 13, priced at $422 found 1 day ago