$133 Cheap Frontier Airlines flights Washington (DCA) to Ontario (ONT)

$133 Cheap Frontier Airlines flights Washington (DCA) to Ontario (ONT)

Prices were available within the past 7 days and start at $133 for one-way flights and $332 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 22 - Fri, Jul 25

DCA

Washington

ONT

Ontario

$332 Roundtrip, found 17 hours ago

$332

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Tue, Jul 22 from Washington to Ontario, returning Fri, Jul 25, priced at $332 found 17 hours ago

Sat, Jul 19 - Sat, Jul 26

DCA

Washington

ONT

Ontario

$334 Roundtrip, found 17 hours ago

$334

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Sat, Jul 19 from Washington to Ontario, returning Sat, Jul 26, priced at $334 found 17 hours ago

Sat, Jul 19 - Fri, Jul 25

DCA

Washington

ONT

Ontario

$339 Roundtrip, found 17 hours ago

$339

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Sat, Jul 19 from Washington to Ontario, returning Fri, Jul 25, priced at $339 found 17 hours ago

Thu, Jul 24 - Sat, Jul 26

DCA

Washington

ONT

Ontario

$379 Roundtrip, found 17 hours ago

$379

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Thu, Jul 24 from Washington to Ontario, returning Sat, Jul 26, priced at $379 found 17 hours ago

Thu, Jul 24 - Sun, Jul 27

DCA

Washington

ONT

Ontario

$384 Roundtrip, found 17 hours ago

$384

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Thu, Jul 24 from Washington to Ontario, returning Sun, Jul 27, priced at $384 found 17 hours ago

Mon, Jul 14 - Thu, Jul 17

DCA

Washington

ONT

Ontario

$412 Roundtrip, found 1 day ago

$412

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jul 14 from Washington to Ontario, returning Thu, Jul 17, priced at $412 found 1 day ago

Mon, Jul 14 - Thu, Jul 17

DCA

Washington

ONT

Ontario

$418 Roundtrip, found 1 day ago

$418

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jul 14 from Washington to Ontario, returning Thu, Jul 17, priced at $418 found 1 day ago

Mon, Jul 14 - Thu, Jul 17

DCA

Washington

ONT

Ontario

$473 Roundtrip, found 1 day ago

$473

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jul 14 from Washington to Ontario, returning Thu, Jul 17, priced at $473 found 1 day ago