$46 Find Cheap Flights from Ontario to Oregon

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Oregon departing on 7/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Oregon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Oregon.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Oregon.
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Best Oregon Flight Deals from Ontario

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Portland
Portlandnonstop$77
Eugene
Eugene1 stop$248
Redmond
Redmond1 stop$236
Medford
Medford1 stop$199
North Bend
North Bend1 stop$414
Boise
Boise1 stop$213
Portland
Portlandnonstop$77
Eugene
Eugene1 stop$248
Redmond
Redmond1 stop$236
Medford
Medford1 stop$199
North Bend
North Bend1 stop$414
Boise
Boise1 stop$213

Cheap Flight Deals from Ontario to Oregon (ONT-USOR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Oregon that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Ontario to Oregon

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Ontario to Oregon.
Discover the best prices for you by selecting your travel dates on KAYAK.
Frontier Logo
3:35 pm - 5:58 pmONT-PDX
2h 23mnonstop
Frontier Logo
12:17 pm - 2:40 pmPDX-ONT
2h 23mnonstop
$77Frontier
Find Deal
Tue, Jul 8 - Sat, Jul 12
Frontier Logo
3:35 pm - 5:58 pmONT-PDX
2h 23mnonstop
Frontier Logo
12:17 pm - 2:40 pmPDX-ONT
2h 23mnonstop
$78Frontier
Find Deal
Tue, Jul 29 - Tue, Aug 5
Alaska Airlines Logo
10:00 am - 12:22 pmONT-PDX
2h 22mnonstop
Alaska Airlines Logo
2:50 pm - 5:06 pmPDX-ONT
2h 16mnonstop
$151Alaska Airlines
Find Deal
Sat, May 31 - Sat, May 31
United Airlines Logo
6:00 am - 12:33 pmONT-PDX
6h 33m1 stop
United Airlines Logo
7:40 am - 12:14 pmPDX-ONT
4h 34m1 stop
$153United Airlines
Find Deal
Wed, May 28 - Wed, Jun 4
United Airlines Logo
6:00 am - 12:22 pmONT-PDX
6h 22m1 stop
United Airlines Logo
3:42 pm - 10:45 pmPDX-ONT
7h 03m1 stop
$154United Airlines
Find Deal
Tue, Jun 3 - Tue, Jun 10
Alaska Airlines Logo
10:00 am - 12:22 pmONT-PDX
2h 22mnonstop
Alaska Airlines Logo
7:00 am - 9:17 amPDX-ONT
2h 17mnonstop
$157Alaska Airlines
Find Deal
Wed, May 28 - Wed, Jun 4
Delta Logo
11:44 am - 4:59 pmONT-PDX
5h 15m1 stop
Delta Logo
1:21 pm - 6:20 pmPDX-ONT
4h 59m1 stop
$197Delta
Find Deal
Tue, May 13 - Wed, May 14
Delta Logo
2:55 pm - 10:47 pmONT-MFR
7h 52m1 stop
Delta Logo
6:15 am - 2:15 pmMFR-ONT
8h 00m1 stop
$200Delta
Find Deal
Sat, May 24 - Sun, May 25
Southwest Logo
7:35 pm - 12:45 amONT-PDX
5h 10m1 stop
Southwest Logo
6:45 am - 10:10 amPDX-ONT
3h 25m1 stop
$262Southwest
Find Deal
Sun, May 18 - Wed, May 21
Southwest Logo
8:05 pm - 12:15 amONT-PDX
4h 10m1 stop
Southwest Logo
6:00 am - 10:05 amPDX-ONT
4h 05m1 stop
$282Southwest
Find Deal
Fri, Jun 13 - Thu, Jun 19
Useful Info

KAYAK's insights & trends for Ontario to Oregon flights

Get data-powered insights and trends into flights from Ontario to Oregon to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Ontario to Oregon flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Ontario to Oregon.

The cheapest ticket to Oregon from Ontario found in the last 72 hours was to Portland, at $98 round-trip. The most popular route is from Ontario (ONT) to Portland (PDX), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $98.

What is the cheapest month to fly from Ontario to Oregon?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Oregon, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Oregon is June, when tickets cost $148 (return) on average. On the other hand, the most expensive months are March and February, when the average cost of round-trip tickets is $247 and $217 respectively.

What’s the cheapest day of the week to fly from Ontario to Oregon?

The average price of all round-trip flights from Ontario to Oregon clicked on KAYAK for each day over the last 12 months.

For Ontario to Oregon, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Oregon back to Ontario, the best deals are generally found on Saturday, with Sunday being the most expensive.

How far in advance should I book a flight from Ontario to Oregon?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Oregon, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ontario to Oregon, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.


Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$46
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Ontario to Portland

Flights from Ontario to Oregon: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Ontario to Oregon 
Verified travelerFlew with FrontierONT-PDXOct 2024
ONT by far the best airport in SoCal.
Verified travelerFlew with Alaska AirlinesONT-PDXOct 2024
Portland is a big airport, give yourself time.
PolarFlew with Alaska AirlinesONT-PDXAug 2024
Bring a jacket! It is much cooler in the Pacific Northwest than southern California!

FAQs - booking Oregon flights

  • How does KAYAK find such low prices on flights from Ontario to Oregon?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Oregon.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Oregon?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Oregon is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Oregon?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ontario to Oregon with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Oregon?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ontario to Oregon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Oregon?

    The cheapest time of day to fly to Oregon is generally in the evening, when round-trip flights cost $120 on average. Morning departures are around 84% more expensive than evening flights, on average. The most expensive time of day to fly to Oregon is generally at night, which is peak travel time and where the average cost of a ticket is $244.

Top tips for finding cheap flights to Oregon

  • Looking for a cheap flight? 25% of our users found tickets from Ontario to the following destinations at these prices or less: Portland $118 one-way - $191 round-trip

Top 5 airlines serving from Ontario to Oregon

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Oregon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Oregon? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9972 reviews
8.1Boarding
7.9Comfort
7.1Food
7.1Entertainment
8.5Crew
Airline reviews

I got the last seat on the plane, in the back in the corner against the window, and I paid a competitive price for my ticket several weeks before the flight.

2.0 MediocreAnonymous, Apr 2025SNA - PDX
Read more Alaska Airlines reviews

I got the last seat on the plane, in the back in the corner against the window, and I paid a competitive price for my ticket several weeks before the flight.

Personal demeanor not good on flight returning to LAX..Great and superb on the way to Portland

First time flying with any airline that has decent seating. Great experience crew was friendly and the pilot was as well.

Didn’t like anything. Alaska boarding process takes too long and is poorly managed. Flight crew unorganized and too lax not very professional. I fly very frequently (weekly) and this as the worst overall trip I have ever taken.

Quick boarding, efficient and pleasant crew. Wish they worked the mic better in the terminal to be understood more clearly.

Nothing! I just didn't eat or use entertainment. I had three seats all to myself and it was wonderful!!!!

Flight was cancelled while everyond was on the plane, ready for take off

Boarding, crew, and duration were great. The lack of built-in entertainment is a turn-off, especially in this day and age. I’m also tall, so comfort is always an issue. More legroom without extra cost for taller passengers would be great.

The people were nice. I did not make my flight and they immediately gave me the next one out.

This is the first time I fly with Alaska and it was a great experience. No delays, friendly crew, arrived on time. It was just a two hour flight from Burbank to Portland.

It was a perfect flight in all aspects! Both legs!

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a hell hole of an airport. It is the new LaGuardia. Everything Cobbled together. Security gates closed. Terri directional signage

Delta flight was on time, seats were comfortable, and crew was nice.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

The Pilot was one of the best I've had, very informative about turbulence and got us to our destination early

The gate was too far away for the connecting flight

Compared with other carriers business class for an overnight was not worth the extra expense.

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

Wish movie and music choices changed more often. Mostly same from a month or two ago when I last flew.

It was good. Just that the seats could not be reclined. The people behind were not ready to let the chairs be reclined

Plane left & arrived early- 5 Crew great. Wi fi - paid for 2, only 1 worked - so so. Waste of $. Coolie was good

There was no USB plug in my section of the plane. So I could not charge my phone. Also, there was no screen to watch movie or anything like that. Wish I had known that in advance, I would’ve brought my iPad.

Made all groups except 2 check despite ample bin space. Inflight WiFi and entertainment didn’t work most of the time.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

The worst flight of my life. Never will I fly frontier again

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

It was a redeye flight, so every passenger just wanted to sleep, but through the entire flight, the flight crew made announcements over the loudspeaker at maximum volume every few minutes making sleep impossible. For example: it’s 2am, and the crew decides to give an extremely detailed announcement about snacks and beverages for sale. And 3am is the perfect time to wake up everyone with a lengthy announcement about how to get a coffee refill and how to take advantage of new offer from frontier for a credit card.

The takeoff was the smoothest I've ever experienced on any airline and this is the first time I've flown on frontier so this was an extremely pleasant surprise!

Everything you need to know for your flight from Ontario to Oregon

Information on your arrival and departure airports

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