Lowest Prices
Uncover the best deals on Ontario to Portland flights by comparing fares from hundreds of airlines and agencies.
Useful information for finding best airline tickets from Ontario International to Portland International Jetport on your next trip.
Cheapest One way Flight
$345
Southwest Airlines
• 3 stops
• 42h
Nov 06
The cheapest one way flight from Ontario to Portland (ONT-PWM) is currently $345
Fastest Flight
20h 52m
The fastest nonstop flight from Ontario to Portland (ONT-PWM) takes 20h 52m
| Origin Airport | Ontario International , Ontario, US |
| Destination Airport | Portland International Jetport , Portland, US |
| Distance | 2598 miles |