$85 Cheap Frontier Airlines flights Ontario (ONT) to Washington (IAD)

$85 Cheap Frontier Airlines flights Ontario (ONT) to Washington (IAD)

Prices were available within the past 7 days and start at $85 for one-way flights and $195 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Apr 23 - Fri, May 8

ONT

Ontario

IAD

Washington

$195 Roundtrip, found 3 hours ago

$195

Roundtrip

found 3 hours ago

Select Frontier Airlines flight, departing Thu, Apr 23 from Ontario to Washington, returning Fri, May 8, priced at $195 found 3 hours ago

Thu, Apr 23 - Thu, May 14

ONT

Ontario

IAD

Washington

$215 Roundtrip, found 3 hours ago

$215

Roundtrip

found 3 hours ago

Select Frontier Airlines flight, departing Thu, Apr 23 from Ontario to Washington, returning Thu, May 14, priced at $215 found 3 hours ago

Tue, May 26 - Tue, Jun 9

ONT

Ontario

IAD

Washington

$220 Roundtrip, found 3 hours ago

$220

Roundtrip

found 3 hours ago

Select Frontier Airlines flight, departing Tue, May 26 from Ontario to Washington, returning Tue, Jun 9, priced at $220 found 3 hours ago

Tue, May 26 - Fri, Jun 5

ONT

Ontario

IAD

Washington

$225 Roundtrip, found 3 hours ago

$225

Roundtrip

found 3 hours ago

Select Frontier Airlines flight, departing Tue, May 26 from Ontario to Washington, returning Fri, Jun 5, priced at $225 found 3 hours ago

Thu, Apr 23 - Mon, May 11

ONT

Ontario

IAD

Washington

$235 Roundtrip, found 3 hours ago

$235

Roundtrip

found 3 hours ago

Select Frontier Airlines flight, departing Thu, Apr 23 from Ontario to Washington, returning Mon, May 11, priced at $235 found 3 hours ago

Tue, May 26 - Thu, Jun 11

ONT

Ontario

IAD

Washington

$240 Roundtrip, found 3 hours ago

$240

Roundtrip

found 3 hours ago

Select Frontier Airlines flight, departing Tue, May 26 from Ontario to Washington, returning Thu, Jun 11, priced at $240 found 3 hours ago