$77 Cheap Frontier Airlines flights Seattle Paine Field Intl. Airport (PAE) to Ontario (ONT)

$77 Cheap Frontier Airlines flights Seattle Paine Field Intl. Airport (PAE) to Ontario (ONT)

Prices were available within the past 7 days and start at $77 for one-way flights and $154 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 3 - Thu, Oct 9

PAE

Seattle

ONT

Ontario

$154 Roundtrip, found 5 days ago

$154

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, Oct 3 from Seattle to Ontario, returning Thu, Oct 9, priced at $154 found 5 days ago

Thu, Oct 23 - Thu, Oct 30

PAE

Seattle

ONT

Ontario

$172 Roundtrip, found 2 days ago

$172

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Oct 23 from Seattle to Ontario, returning Thu, Oct 30, priced at $172 found 2 days ago

Fri, Dec 26 - Mon, Dec 29

PAE

Seattle

ONT

Ontario

$920 Roundtrip, found 3 days ago

$920

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Dec 26 from Seattle to Ontario, returning Mon, Dec 29, priced at $920 found 3 days ago

Fri, Dec 26 - Tue, Dec 30

PAE

Seattle

ONT

Ontario

$936 Roundtrip, found 3 days ago

$936

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Dec 26 from Seattle to Ontario, returning Tue, Dec 30, priced at $936 found 3 days ago