Cheap flights from Ontario to Portland from $38
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 Portland departing on 2/10. 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 Portland
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 typical price of a round-trip flight between Ontario and Portland?
What is the cheapest month to fly to Portland?
The cheapest month to fly to Portland from Ontario is in April. Flight prices, which tend to average around $127, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in April, then you should wait until May to fly from Ontario, when ticket prices are also cheap, with an average price of $156.
What is the cheapest day to depart on your flight to Portland?
The cheapest day to depart on your flight to Portland is on a Tuesday when prices can be found for as low as $216. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Monday, with ticket prices averaging around $251.
What is the cheapest time of day to depart on your flight to Portland?
The cheapest time of day to fly to Portland is at noon when flights can be purchased for as low as $217. In the evening is when there is more demand to fly to Portland, so prices are often more expensive at around $248 per ticket.
What is the cheapest Ontario to Portland flight route?
Fly from Ontario to Portland for the best Ontario - Portland flight prices
How far in advance should I book a flight to Portland?
You are more likely to see cheaper flights to Portland from Ontario when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $180 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from Ontario for as low as $116 on momondo.
What cabin class options are available on Ontario to Portland flights?
There are 4 cabin classes available to choose from on Ontario to Portland 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 Portland?
Frontier, Alaska Airlines, and Southwest are the most popular carriers operating from Ontario to Portland
What airlines fly to Portland?
Alaska Airlines, Frontier and Delta are the top three most popular airlines that fly to Portland from Ontario according to our data. Alaska Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 8 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.
How many flights depart from Ontario to Portland on average per day?
As of February 2025, there are 5 flights per day flying from Ontario to Portland. The most common time of day flights depart is 11:00AM, with 63% of flights taking off at noon.
How many flights depart from Ontario to Portland on average per week?
The number of flights available between Ontario and Portland is 36 per week as of February 2025. The most frequent departure day is Mon, with 19% of weekly flights leaving on this day.
When to book flights from Ontario to Portland
Cheap Ontario to Portland (ONT to PDX) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Portland
How far is Ontario to Portland by plane?
Ontario and Portland are 834.5 mi apart from one another. A reasonable flight in good conditions will take 2h 20m.
When did momondo last update prices for flights from Ontario Airport to Portland Airport?
Prices for flights from Ontario Airport to Portland Airport are updated daily.
How many operators does momondo search for flights from Ontario Airport to Portland Airport?
As of February 2025, there are 6 operators available to choose from for flights from Ontario Airport to Portland Airport.
How old do you have to be to fly from Ontario Airport to Portland Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Ontario to Portland?
momondo data reveals that the most frequently booked plane model on the route from Ontario to Portland is Airbus A320neo, representing 25.24% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 14.24%, Embraer 175 at 10.70%, and Boeing 737-900 Passenger/BBJ3 (winglets) at 9.59%.
What is the most popular airline from Ontario to Portland?
Based on momondo bookings for flights between Ontario and Portland, the leading airline is Frontier, making up 64% of the total bookings. Other popular airlines include Alaska Airlines with 31%, Delta with 2%, and United Airlines with 2%.
Best airlines flying from Ontario to Portland
Compare and see reviews for airlines that fly from Ontario to Portland with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $48 | Free Cancellation | Rating 6.3 8,075 reviews | |||
| PriceFrom $55 | Free Cancellation | Rating 6.0 3,418 reviews | |||
| PriceFrom $152 | Free Cancellation | Rating 8.0 9,681 reviews | |||
| PriceFrom $158 | Free Cancellation | Rating 8.1 4,570 reviews | |||
| PriceFrom $167 | Free Cancellation | Rating 8.0 8,430 reviews | |||
| PriceFrom $177 | Free Cancellation | Rating 7.4 8,892 reviews |
Alaska Airlines Flights From Ontario to Portland
Alaska Airlines operates around 16 flights from Ontario to Portland every week. The average price of these flights found in the last 72 hours has been $265, but momondo users have found Alaska Airlines deals from Ontario to Portland from as low as $152 round-trip. Alaska Airlines has been scored 8.0/10 in 9,681 reviews.
Frontier Flights From Ontario to Portland
Frontier is also a popular choice for this route. Frontier flight deals for Ontario to Portland start from as low as $55 round-trip, depending on your selected dates, with average Frontier deals seen on momondo around $121. Frontier operates 2 flights to Portland from Ontario in an average week. Users have rated it 6.0/10 across 3,418 reviews.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ontario to Portland?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Portland. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Ontario to Portland with flexible booking policies on momondo?
Yes. All flights to Portland from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Ontario to Portland?
Once you have performed a search for Ontario to Portland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Ontario to Portland right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Ontario to Portland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portland and let you know when they change.