$153 Cheap Frontier Airlines flights Seattle Paine Field Intl. Airport (PAE) to Ontario (ONT)

$153 Cheap Frontier Airlines flights Seattle Paine Field Intl. Airport (PAE) to Ontario (ONT)

Prices were available within the past 7 days and start at $153 for one-way flights and $306 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Sep 12 - Thu, Sep 18

PAE

Seattle

ONT

Ontario

$306 Roundtrip, found 3 days ago

$306

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Sep 12 from Seattle to Ontario, returning Thu, Sep 18, priced at $306 found 3 days ago

Mon, Aug 11 - Sat, Aug 23

PAE

Seattle

ONT

Ontario

$331 Roundtrip, found 5 days ago

$331

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Mon, Aug 11 from Seattle to Ontario, returning Sat, Aug 23, priced at $331 found 5 days ago

Fri, Sep 12 - Thu, Sep 18

PAE

Seattle

ONT

Ontario

$361 Roundtrip, found 3 days ago

$361

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Sep 12 from Seattle to Ontario, returning Thu, Sep 18, priced at $361 found 3 days ago

Mon, Sep 15 - Sun, Sep 21

PAE

Seattle

ONT

Ontario

$373 Roundtrip, found 21 hours ago

$373

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Mon, Sep 15 from Seattle to Ontario, returning Sun, Sep 21, priced at $373 found 21 hours ago

Mon, Sep 15 - Sun, Sep 21

PAE

Seattle

ONT

Ontario

$389 Roundtrip, found 3 days ago

$389

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Sep 15 from Seattle to Ontario, returning Sun, Sep 21, priced at $389 found 3 days ago