$109 Cheap Frontier Airlines flights Seattle Paine Field Intl. Airport (PAE) to Ontario (ONT)

$109 Cheap Frontier Airlines flights Seattle Paine Field Intl. Airport (PAE) to Ontario (ONT)

Prices were available within the past 7 days and start at $109 for one-way flights and $239 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Sep 22 - Mon, Sep 29

PAE

Seattle

ONT

Ontario

$239 Roundtrip, found 2 days ago

$239

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Sep 22 from Seattle to Ontario, returning Mon, Sep 29, priced at $239 found 2 days ago

Mon, Sep 22 - Mon, Sep 29

PAE

Seattle

ONT

Ontario

$278 Roundtrip, found 2 days ago

$278

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Sep 22 from Seattle to Ontario, returning Mon, Sep 29, priced at $278 found 2 days ago