$87 Cheap Frontier Airlines flights Ontario (ONT) to Portland (PDX)

$87 Cheap Frontier Airlines flights Ontario (ONT) to Portland (PDX)

Prices were available within the past 7 days and start at $87 for one-way flights and $224 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Aug 24 - Mon, Aug 25

ONT

Ontario

PDX

Portland

$224 Roundtrip, found 3 hours ago

$224

Roundtrip

found 3 hours ago

Select Frontier Airlines flight, departing Sun, Aug 24 from Ontario to Portland, returning Mon, Aug 25, priced at $224 found 3 hours ago

Fri, Aug 22 - Mon, Aug 25

ONT

Ontario

PDX

Portland

$250 Roundtrip, found 3 hours ago

$250

Roundtrip

found 3 hours ago

Select Frontier Airlines flight, departing Fri, Aug 22 from Ontario to Portland, returning Mon, Aug 25, priced at $250 found 3 hours ago

Fri, Aug 22 - Mon, Aug 25

ONT

Ontario

PDX

Portland

$266 Roundtrip, found 3 hours ago

$266

Roundtrip

found 3 hours ago

Select Frontier Airlines flight, departing Fri, Aug 22 from Ontario to Portland, returning Mon, Aug 25, priced at $266 found 3 hours ago

Fri, Aug 22 - Mon, Aug 25

ONT

Ontario

PDX

Portland

$277 Roundtrip, found 3 hours ago

$277

Roundtrip

found 3 hours ago

Select Frontier Airlines flight, departing Fri, Aug 22 from Ontario to Portland, returning Mon, Aug 25, priced at $277 found 3 hours ago

Fri, Aug 22 - Mon, Aug 25

ONT

Ontario

PDX

Portland

$280 Roundtrip, found 3 hours ago

$280

Roundtrip

found 3 hours ago

Select Frontier Airlines flight, departing Fri, Aug 22 from Ontario to Portland, returning Mon, Aug 25, priced at $280 found 3 hours ago

Fri, Aug 22 - Sun, Aug 24

ONT

Ontario

PDX

Portland

$284 Roundtrip, found 1 day ago

$284

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 22 from Ontario to Portland, returning Sun, Aug 24, priced at $284 found 1 day ago