There are approximately 86 nonstop or direct flights from Portland to Ontario each month.

A list of some of the airlines that might fly to Ontario from Portland via direct or nonstop routes includes:

• Southwest Airlines Co.
• Horizon Air

The flight distance between Portland OR (PDX) and Ontario CA (ONT) is 838 miles.

Time in the air is approximately 1 hr 54 min and the ramp to ramp time is roughly 2 hr 12 min.

Hope this information about direct flights from Portland to Ontario is useful. This travel flight guide may interest those looking for nonstop flights to Ontario and cheap flights from Portland airport. Travelers looking for non stop Portland OR to Ontario CA flights might also find it helpful.