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The minimum one-way ticket price from Portland to Ontario is $75 (February 2026), while the maximum is $268 (January 2026). On average, a ticket costs $172–$268.
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Portland to Ontario:
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
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A non-stop flight is the most convenient and comfortable way to fly from Portland to Ontario, despite the fact that sometimes flights with transfers can cost significantly less.
Unable to find information about the schedule of direct flights from
We couldn't find any special offers for flights from Portland to Ontario
Portland — Los Angeles
01/23/2026
Departure
Direct flight
AS6448
starting at $223
Portland — Los Angeles
02/09/2026
Departure
Direct flight
AS264
starting at $217
Portland — Los Angeles
01/22/2026
Departure
Direct flight
AS559
starting at $190
Portland — Los Angeles
02/14/2026
Departure
Direct flight
AA5011
starting at $157
Portland — Los Angeles
03/03/2026
Departure
Direct flight
AS581
starting at $160
The route Portland — Ontario is served by several airlines: Alaska Airlines, American Airlines, and Frontier Airlines. This gives passengers more freedom in choosing flights. You can consider not only the price but also schedules, baggage policies, and onboard service. Our service compares all offers so you can find tickets from $45 and choose the most convenient option. Thanks to airline competition, you may also find promotional fares or special offers, helping you save even more. Plan your trip in advance and choose the best flights without overpaying.
The cheapest flight ticket from Portland to Ontario according to data for the last 48 hours costs $45
Often the best time to buy tickets from Portland to Ontario is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Portland to Ontario can be found flying in these months: February, January.
The fastest flights from Portland to Ontario start from 2 hours 17 minutes in the air.
The following airlines operate direct flights on the route Portland — Ontario: Alaska Airlines, American Airlines
The cheapest one-way flight from Portland to Ontario departs on 01/22/2026, is operated by Frontier Airlines and costs $45
The cheapest roundtrip flight from Portland to Ontario departs on 02/28/2026, is operated by Frontier Airlines and costs $131
Fastest flight from Portland to Ontario takes 2h 17m
There are direct flights on this route 5 days a week: Mo, Tu, Th, Fr, and Sa
The distance between Portland and Ontario is 1350km (837 miles). There are 48 direct flights from Portland to Ontario. Portland and Ontario are in the same time zone. Flights from Portland begin at 10:40 AM. The latest flight from Portland departs at 9:30 PM