A direct 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.
Schedule of direct flights from Portland to Ontario
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Portland to Ontario:
Portland airports overview
Ontario airports overview
Frequently asked questions (FAQ)
Answers to questions about the route that travelers are most interested in.
Special offers and sales on air tickets from Portland to Ontario
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.
Alternative routes
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Cheapest one way flight
$72
Frontier Airlines
1 transfer
8h 57m
10/15/2025
The cheapest one-way flight from Portland to Ontario departs on 10/15/2025, is operated by Frontier Airlines and costs $72
Cheapest round trip flight
$139
Frontier Airlines
1 transfer
13h 33m
10/16/2025
The cheapest roundtrip flight from Portland to Ontario departs on 10/16/2025, is operated by Frontier Airlines and costs $139
The fastest flight
2h 22m
Fastest flight from Portland to Ontario takes 2h 22m
Direct flights
Once a week
There are direct flights on this route 1 day a week: Tu
Earliest flight
7:01 AM
Latest flight
9:41 PM
Average flight duration
2h 23m
Direct flights count
55
Distance
1350km
Timezone difference
0h
The distance between Portland and Ontario is 1350km (837 miles). The average flight duration is 2h 23m. There are 55 direct flights from Portland to Ontario. Portland and Ontario are in the same time zone. Flights from Portland begin at 7:01 AM. The latest flight from Portland departs at 9:41 PM
The route Portland — Ontario is served by several airlines: Southwest Airlines, Alaska 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 $72 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.
We couldn't find any special offers for flights from Portland to Ontario
How much is the cheapest flight ticket from Portland to Ontario?
The cheapest flight ticket from Portland to Ontario according to data for the last 48 hours costs $72
When is the best time to buy air tickets on the route Portland — Ontario?
Often the best time to buy tickets from Portland to Ontario is 2 months before departure.
How long does it take to fly from Portland to Ontario?
The fastest flights from Portland to Ontario start from 2 hours 22 minutes in the air.
Which airline can fly direct from Portland to Ontario?
The following airlines operate direct flights on the route Portland — Ontario: Southwest Airlines, Alaska Airlines
We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Portland to Ontario
