$322 Cheap Frontier Airlines flights Washington (DCA) to Ontario (ONT)

$322 Cheap Frontier Airlines flights Washington (DCA) to Ontario (ONT)

Prices were available within the past 7 days and start at $322 for one-way flights and $318 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 7 - Tue, Oct 14

DCA

Washington

ONT

Ontario

$318 Roundtrip, found 4 days ago

$318

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Oct 7 from Washington to Ontario, returning Tue, Oct 14, priced at $318 found 4 days ago

Sat, Oct 11 - Wed, Oct 15

DCA

Washington

ONT

Ontario

$326 Roundtrip, found 4 days ago

$326

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sat, Oct 11 from Washington to Ontario, returning Wed, Oct 15, priced at $326 found 4 days ago

Tue, Oct 7 - Fri, Oct 10

DCA

Washington

ONT

Ontario

$331 Roundtrip, found 4 days ago

$331

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Oct 7 from Washington to Ontario, returning Fri, Oct 10, priced at $331 found 4 days ago

Sat, Oct 11 - Sat, Oct 18

DCA

Washington

ONT

Ontario

$334 Roundtrip, found 4 days ago

$334

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sat, Oct 11 from Washington to Ontario, returning Sat, Oct 18, priced at $334 found 4 days ago

Thu, Nov 27 - Fri, Dec 5

DCA

Washington

ONT

Ontario

$339 Roundtrip, found 3 days ago

$339

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Nov 27 from Washington to Ontario, returning Fri, Dec 5, priced at $339 found 3 days ago

Fri, Oct 17 - Sun, Nov 2

DCA

Washington

ONT

Ontario

$414 Roundtrip, found 5 days ago

$414

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, Oct 17 from Washington to Ontario, returning Sun, Nov 2, priced at $414 found 5 days ago

Thu, Oct 9 - Tue, Oct 14

DCA

Washington

ONT

Ontario

$481 Roundtrip, found 4 days ago

$481

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Oct 9 from Washington to Ontario, returning Tue, Oct 14, priced at $481 found 4 days ago

Fri, Oct 10 - Sun, Oct 12

DCA

Washington

ONT

Ontario

$493 Roundtrip, found 4 days ago

$493

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Fri, Oct 10 from Washington to Ontario, returning Sun, Oct 12, priced at $493 found 4 days ago

Fri, Oct 10 - Sun, Oct 12

DCA

Washington

ONT

Ontario

$582 Roundtrip, found 4 days ago

$582

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Fri, Oct 10 from Washington to Ontario, returning Sun, Oct 12, priced at $582 found 4 days ago

Fri, Oct 10 - Mon, Oct 13

DCA

Washington

ONT

Ontario

$630 Roundtrip, found 4 days ago

$630

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Fri, Oct 10 from Washington to Ontario, returning Mon, Oct 13, priced at $630 found 4 days ago

Fri, Oct 10 - Sun, Oct 12

DCA

Washington

ONT

Ontario

$666 Roundtrip, found 4 days ago

$666

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Fri, Oct 10 from Washington to Ontario, returning Sun, Oct 12, priced at $666 found 4 days ago