Cheap flights from Ontario to Oregon from $58
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Oregon departing on 7/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Ontario to Oregon
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Oregon?
The month of September is, on average, the cheapest month to fly to Oregon from Ontario, with most prices found around $156. The month of October is another great option to travel to Oregon, with average flight prices from Ontario averaging around $156.
What is the cheapest day to depart on your flight to Oregon?
On average, the least expensive day to fly to Oregon from Ontario is on a Saturday. momondo users have found tickets for Saturday departures for as low as $177. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Oregon is Sunday, with ticket prices averaging around $260.
What is the cheapest time of day to depart on your flight to Oregon?
According to our data, the cheapest time of day to fly to Oregon is in the afternoon. momondo users have found flights departing from Ontario to Oregon in the afternoon for as low as $136. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Oregon are more costly in the morning, with an average ticket price of $245. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Ontario to Oregon flight route?
Fly from Ontario to Portland for the best Ontario - Oregon flight prices
How far in advance should I book a flight to Oregon?
You are more likely to see cheaper flights to Oregon from Ontario when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to Oregon for around $198 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oregon from Ontario for as low as $142 on momondo.
What cabin class options are available on Ontario to Oregon flights?
There are 4 cabin classes available to choose from on Ontario to Oregon flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Ontario to Oregon?
Frontier, Alaska Airlines, and Southwest are the most popular carriers operating from Ontario to Oregon
What airlines fly to Oregon?
Alaska Airlines, Frontier and Delta are the top three most popular airlines that fly to Oregon from Ontario according to our data. Alaska Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Oregon. Keep in mind that there are 10 different airlines that fly to Oregon on a routine basis, so you have a few additional options to choose from.
How many flights depart from Ontario to Oregon on average per day?
The number of flights available between Ontario and Oregon is 7 per day as of June 2025. The most frequent departure time is 7:00AM, with 64% of daily flights leaving at noon.
How many flights depart from Ontario to Oregon on average per week?
55 flights are operational weekly from Ontario to Oregon as of June 2025. The most popular departure day for this route is Sun, with 18% of flights per week taking off on this day.
Cheap Ontario to Oregon flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Oregon
When did momondo last update prices for flights from Ontario Airport to Oregon?
Prices for flights from Ontario Airport to Oregon were last updated today.
How many operators does momondo search for flights from Ontario Airport to Oregon?
As of June 2025, there are 9 operators available to choose from for flights from Ontario Airport to Oregon.
How old do you have to be to fly from Ontario Airport to Oregon?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Oregon.
What documentation or ID do you need to fly to Oregon?
The travel and health documents required for your trip to Oregon can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Oregon. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Ontario to Oregon?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ontario to Oregon is Embraer 175 (22.49% of total bookings). The next most popular plane models are Boeing 737-900 Passenger/BBJ3 (winglets) (14.97%), Boeing 737 MAX 8 (13.23%), and Airbus A321-100/200 (8.68%).
Best airlines flying from Ontario to Oregon
Compare and see reviews for airlines that fly from Ontario to Oregon with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $48 | Free Cancellation | Rating 6.3 8,060 reviews | |||
| PriceFrom $56 | Free Cancellation | Rating 5.9 3,296 reviews | |||
| PriceFrom $108 | Free Cancellation | Rating 7.8 2,501 reviews | |||
| PriceFrom $137 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom $142 | Free Cancellation | Rating 7.4 76 reviews | |||
| PriceFrom $156 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $176 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $176 | Free Cancellation | Rating 8.0 4,278 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Ontario to Oregon?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Oregon. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Ontario to Oregon with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Ontario to Oregon flights to just show those with flexible booking policies.
How can momondo help me find flights from Ontario to Oregon?
Once all potential Ontario to Oregon flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Ontario to Oregon right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Ontario to Oregon flights. All you need is a valid email address and we will do the rest; it is that quick and easy.