Woven Adventures

Flights from Seattle to Ontario

4 deals on this route

Ontario California aerial with San Gabriel Mountains
Save 37%
$109
$174
Seattle skyline with Space Needle and Mount Rainier
SEAONT
Seattle to Ontario
Frontier Airlines
Nonstop·round trip
Apr 21 – Apr 25
Ontario California aerial with San Gabriel Mountains
$141
$174
Seattle skyline with Space Needle and Mount Rainier
SEAONT
Seattle to Ontario
Frontier Airlines
Nonstop·round trip
Apr 25 – Apr 26
Ontario California aerial with San Gabriel Mountains
$179
Seattle skyline with Space Needle and Mount Rainier
SEAONT
Seattle to Ontario
Frontier Airlines
Nonstop·round trip
May 25 – May 27
Ontario California aerial with San Gabriel Mountains
$198
Seattle skyline with Space Needle and Mount Rainier
SEAONT
Seattle to Ontario
Frontier Airlines
Nonstop·round trip
Jun 17 – Jun 27