Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Ontario to Portland. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
The cost of a one-way flight from Ontario to Portland ranges from $135 (October 2026) to $218 (June 2027). On average, the ticket price is about $190–$204.
A non-stop flight is the most convenient and comfortable way to fly from Ontario to Portland, despite the fact that sometimes flights with transfers can cost significantly less.
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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.
The Ontario — Portland route shows a classic seasonal pattern: prices rise, peak, then fall again. Knowing this, you can pick a more affordable time to fly.
Prices rise from October 2026 to June 2027 (+61%), then decline from June 2027 to July 2027 (6%). The cheapest tickets are in October 2026–April 2027 (averaging $168), while the priciest are in June 2027–July 2027 ($211).
For savings, plan your flight for October 2026–April 2027 — you could save up to 20%. Try to avoid June 2027–July 2027 when possible: prices are at their highest then.
Price spread on this route is 16.9%. Costs depend heavily on the season, so flexibility in choosing your departure month is especially valuable here.
Flights from Ontario to Portland are operated by several airlines — Alaska Airlines, Southwest Airlines, and Frontier Airlines. This allows passengers to flexibly choose flights based on departure time, cost, and additional services. The minimum ticket price starts at $120, making this destination accessible to travelers with different budgets. We help compare all available options in real time, so you can book tickets at the best value for money. The service ensures transparent search and lets you book affordable flights in just a few clicks.
Ontario — Portland
10/02/2026
Departure
Direct flight
AS544
starting at $352
Ontario — Portland
10/14/2026
Departure
Direct flight
WN249
starting at $210
There are most likely no direct flights on the Ontario — Portland route
The cheapest flight ticket from Ontario to Portland according to data for the last 48 hours costs $120
Often the best time to buy tickets from Ontario to Portland is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Ontario to Portland can be found flying in these months: October, April, July.
The fastest flights from Ontario to Portland start from 15 hours 12 minutes in the air.
The following airlines operate direct flights on the route Ontario — Portland: Alaska Airlines, Southwest Airlines
All airports
The cheapest one-way flight from Ontario to Portland departs on 10/15/2026, is operated by Frontier Airlines and costs $120
There is no information about the cheapest roundtrip flight from Ontario to Portland
Fastest flight from Ontario to Portland takes 15h 12m
There are direct flights on this route 2 days a week: We and Fr
The distance between Ontario and Portland is 1343km (833 miles). There are 23 direct flights from Ontario to Portland. Ontario and Portland are in the same time zone. Flights from Ontario begin at 6:30 AM. The latest flight from Ontario departs at 6:14 PM
We couldn't find any special offers for flights from Ontario to Portland