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PDX - ONT

$44 Find cheap flights from Portland to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Ontario departing on 5/12. 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.
1 adult
0 bags
Sat 5/25
Sat 6/1

Search hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Ontario.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Ontario.
In the last 7 days travelers have searched 44,979,812 times on KAYAK, and here is why:

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Cheap flight deals from Portland to Ontario (PDX-ONT)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Ontario 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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
4:21 pm - 6:36 pmPDX-ONT
2h 15mnonstop
3:35 pm - 5:55 pmONT-PDX
2h 20mnonstop
$58Frontier
Find Deal
Wed, May 15 - Sat, May 18
3:40 pm - 5:55 pmPDX-ONT
2h 15mnonstop
4:52 pm - 7:12 pmONT-PDX
2h 20mnonstop
$68Frontier
Find Deal
Tue, May 14 - Thu, May 16
1:31 pm - 11:44 amPDX-ONT
22h 13m1 stop
3:35 pm - 5:55 pmONT-PDX
2h 20mnonstop
$69Frontier
Find Deal
Wed, May 8 - Sat, May 18
1:31 pm - 11:44 amPDX-ONT
22h 13m1 stop
1:01 pm - 3:21 pmONT-PDX
2h 20mnonstop
$70Frontier
Find Deal
Wed, May 8 - Wed, May 15
1:31 pm - 9:57 pmPDX-ONT
8h 26m1 stop
12:20 pm - 2:40 pmONT-PDX
2h 20mnonstop
$71Frontier
Find Deal
Sat, May 11 - Tue, May 14
3:36 pm - 5:51 pmPDX-ONT
2h 15mnonstop
7:53 am - 12:31 pmONT-PDX
4h 38m1 stop
$73Frontier
Find Deal
Mon, May 13 - Tue, May 14
1:31 pm - 11:44 amPDX-ONT
22h 13m1 stop
5:00 pm - 7:20 pmONT-PDX
2h 20mnonstop
$76Frontier
Find Deal
Wed, May 8 - Wed, May 22
3:40 pm - 5:55 pmPDX-ONT
2h 15mnonstop
5:00 pm - 7:20 pmONT-PDX
2h 20mnonstop
$78Frontier
Find Deal
Tue, May 14 - Sun, Jun 2
11:30 am - 6:02 pmPDX-ONT
6h 32m1 stop
6:50 am - 1:33 pmONT-PDX
6h 43m1 stop
$196Delta
Find Deal
Thu, May 23 - Sun, May 26
7:12 pm - 11:43 pmPDX-ONT
4h 31m1 stop
6:50 am - 1:33 pmONT-PDX
6h 43m1 stop
$211Delta
Find Deal
Fri, May 17 - Mon, May 20

Flights from Portland to Ontario - Travel Insights & Trends

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

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

The average price of all flights from Portland to Ontario clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Portland to Ontario, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Ontario, Saturday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Portland to Ontario, 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 Portland to Ontario is January, where tickets cost $209 on average. On the other hand, the most expensive months are November and June, where the average cost of tickets is $438 and $360 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Portland to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Portland to Ontario, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 45 days before departure.

Which airlines provide the cheapest flights from Portland to Ontario?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Portland to Ontario found by KAYAK users in the last 72 hours was for $58 on Frontier, followed by Delta ($196). One-way flight deals have also been found from as low as $44 on Frontier and from $98 on Delta.

Which airlines fly non-stop between Portland and Ontario?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Portland to Ontario.
There are 3 airlines that fly nonstop from Portland to Ontario. They are: Alaska Airlines, Frontier and Southwest. The cheapest price of all airlines flying this route was found with Frontier at $48 for a one-way flight. On average, the best prices for this route can be found at Frontier.

How many flights are there between Portland and Ontario per day?

Each day, there are between 5 and 6 nonstop flights that take off from Portland and land in Ontario, with an average flight time of 2h 14m. The most common departure time is 7:00 pm and most flights take off in the afternoon. Each week, there are 36 flights. The most frequent day of departure is Sunday, when 17% of all weekly flights depart. The fewest flights depart on a Tuesday.

Which cabin class options are there for flights between Portland and Ontario?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Portland to Ontario take?

Nonstop flights from Portland generally make it to Ontario in 2h 13m. The flying distance between the two cities is 839 miles.

What’s the earliest departure time from Portland to Ontario?

Early birds can take the earliest flight from Portland at 8:04 am and will be landing in Ontario at 10:20 am.

What’s the latest departure time from Portland to Ontario?

If you prefer to fly at night, the latest flight from Portland to Ontario jets off at 8:20 pm and lands at 10:35 pm.

Good to know

Low season

July

High season

December

Cheapest flight

$44
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly with an average 7% increase in price.
Flight from Portland to Ontario

When to book flights from Portland to Ontario

Are your dates flexible? Find out the best times to travel from Portland to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Ontario

  • Does ONT have an on-site car rental facility?

    ONT does not have an on-site car rental facility. However, it does have an off-site car rental facility which is connected to the airport by a free airport shuttle service. This car rental facility houses car rental agencies like Alamo, Budget, Avis, Enterprise, Thrifty, Payless, and National.

  • Is there any other airport that serves Ontario apart from ONT?

    Apart from ONT, Ontario is also served by Los Angeles International Airport (LAX). There are no direct means of public transportation between Ontario and LAX. Hence, to cover the distance between these two points, you'll first need to board a taxi or bus from the airport to Los Angeles' city center. At the city center, you can then board a bus or a train to Ontario.

  • Does PDX have any unique services?

    At PDX, you can enjoy relaxing spa services at The Dragontree Spa. Open from 9 am to 8 pm from Sunday to Friday and 9 am to 6 pm on Saturdays, this spa offers a wide range of spa services at affordable rates. Given that it boasts experienced professionals, you'll receive quality services at this Concourse C spa.

  • Does PDX have a lounge?

    If you'd like to relax in a lounge at PDX as you wait for your flight to ONT, you can check out the amazing Alaska Lounge. Situated near Gate C5 in Concourse C, this lounge boasts comfortable seats, clean washrooms, snacks, and beverages. Given that it is not affiliated with any airline, you can enter this lounge regardless of the airline you're traveling with, provided you pay its entry fee.

  • What is the cheapest flight from Portland to Ontario?

    In the last 3 days, the lowest price for a flight from Portland to Ontario was $44 for a one-way ticket and $58 for a round-trip.

  • Do I need a passport to fly between Portland and Ontario?

    No, a passport isn't needed to fly from Portland to Ontario. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Portland to Ontario?

    On your way to Ontario, you’ll fly out from Portland. You’ll be landing at Ontario.

  • Which airlines offer Wi-Fi service onboard planes from Portland to Ontario?

    Alaska Airlines, Delta, and American Airlines offer inflight Wi-Fi service on the Portland to Ontario flight route.

  • Which aircraft models fly most regularly from Portland to Ontario?

    The Airbus A321-100/200 is the aircraft model that flies most regularly on the Portland to Ontario flight route.

  • Which airline alliances offer flights from Portland to Ontario?

    oneworld is the only airline alliance operating flights between Portland and Ontario.

  • On which days can I fly direct from Portland to Ontario?

    There are nonstop flights from Portland to Ontario on a daily basis.

  • Which is the best airline for flights from Portland to Ontario, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Portland to Ontario are Alaska Airlines and Delta. With an average price for the route of $317 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $374 and an overall rating of 8.0.

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

    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 Portland to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Portland 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 Portland to Ontario?

    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 to Ontario with an airline and back to Portland with another airline. Booking your flights between Portland and ONT can sometimes prove cheaper using this method.

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

    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 to Ontario from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from PDX to Ontario

  • Looking for a cheap flight? 25% of our users found flights on this route for $39 or less one-way and $68 or less round-trip.
  • On the date you're scheduled to fly to Ontario, you should aim to be at Portland International Airport (PDX) at least 2h ahead of your departure time. Getting to the airport this early will enable you to go through the airport's security checkpoints in time for your flight. It will also allow you to check out the superb destinations available at the airport.
  • While waiting for your flight to Ontario International Airport (ONT), you can privately breastfeed your baby. This is because this remarkable airport features clean, spacious, and well-equipped breastfeeding rooms near the airport South Lobby and Gate D2.
  • In case you're traveling with older kids, you can let them enjoy themselves in one of PDX's children's play areas. Located near Gate C17 in Concourse C and gate D7 in Concourse D, these play areas feature child-proof playgrounds and various toys.
  • At ONT, you can easily withdraw the cash you need, as this airport features several ATMs. The ATMs are located on the Upper and Lower levels of Terminals 2 and 4, near the front entrance of the International Terminal and in the Rental Car Facility.
  • If you'd like assistance getting emergency housing, transportation assistance, or wiring some cash, visit Traveler's Aid, a non-profit organization that assists stranded and distressed passengers. In order to cater to as many people as possible, this organization has two branches at ONT. One is between the baggage claim and escalator in Terminal 2, while the other is a short distance from the baggage claim in Terminal 4. Both operate from 9 am to 9 pm.
See more tips

Prefer to fly non-stop from Portland to Ontario?

Find which airlines fly direct from Portland to Ontario, which days they fly and book direct flights.

Nonstop departures

Portland to Ontario

Monday

Alaska Airlines, British Airways, Frontier

Alaska Airlines, British Airways, +1 more

Tuesday

Alaska Airlines, British Airways, Frontier

Alaska Airlines, British Airways, +1 more

Wednesday

Alaska Airlines, British Airways, Frontier

Alaska Airlines, British Airways, +1 more

Thursday

Alaska Airlines, British Airways, Frontier

Alaska Airlines, British Airways, +1 more

Friday

Alaska Airlines, British Airways, Frontier

Alaska Airlines, British Airways, +1 more

Saturday

Alaska Airlines, British Airways, Frontier

Alaska Airlines, British Airways, +1 more

Sunday

Alaska Airlines, British Airways, Frontier, +1 more

Alaska Airlines, British Airways, +2 more

See more direct flights

Nonstop returns

Ontario to Portland

Monday

Alaska Airlines, Frontier

Alaska Airlines, Frontier

Tuesday

Alaska Airlines, Frontier

Alaska Airlines, Frontier

Wednesday

Alaska Airlines, Frontier

Alaska Airlines, Frontier

Thursday

Alaska Airlines, Frontier

Alaska Airlines, Frontier

Friday

Alaska Airlines, Frontier

Alaska Airlines, Frontier

Saturday

Alaska Airlines, Frontier

Alaska Airlines, Frontier

Sunday

Alaska Airlines, Frontier, Southwest

Alaska Airlines, Frontier, +1 more

See more direct flights
See more direct flights

Top 5 airlines serving from Portland to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Portland to Ontario. 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 Portland to Ontario? 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 9114 reviews
8.2boarding
7.3food
8.6crew
7.3entertainment
7.9comfort
Airline reviews

It was so easy to board using my boarding pass on my iPhone, and I liked what I was given on the plane for food and drink, and everyone was very friendly.

10.0 ExcellentAnonymous, Apr 2024PDX - OAK
Read more about Alaska Airlines reviews

It was so easy to board using my boarding pass on my iPhone, and I liked what I was given on the plane for food and drink, and everyone was very friendly.

dont re-route to San Jose. Re-route to closer airport. Provide shuttle bus to go to SFO, not just LYFT vouchers.

Staff seemed genuinely nice, not just going through the motions.

I would have rated the entire experience much better were it not for two things: 1. There was inconsistency between what we were told once on the plane vs. the answer I received to the question about "spreading out" from our assigned seats because the flight was sparsely populated, and the entire row we were in was empty but for us. I asked about one of us moving over one seat to make more room for us; before getting on the plane, I was told we could, which seemed like a sensible answer. Once on the plane, it was announced that we needed to stay in our assigned seats despite all of the empty space in our row, which seemed unneccessarily restrictive. 2. To add to the discomfort, we sat on the tarmac once the plane landed in Burbank for over half an hour waiting for a gate to become available. During that time we had to remain seated and buckled in, which was becoming more difficult as time dragged on, especially for my wife. If all of this was due to regulations, that may mitigate the sense of "needless" restriction somewhat, but it points to a need to make regulations less restrictive where it is not appropriate for the current conditions. The crew was not "nasty" about the restrictions, so I do not resent their actions, but it certainly would have been a much more pleasant flight if we had a few more options when it comes to comfort.

The seat side plug ins didn’t work in my row, and I ran out of things to do since my iPad and iPhone ran out of juice. The flight attendant offered me a free drink but I don’t drink. I suggested a free snack box instead and she just shrugged and walked off. Why do us non-drinkers get the short end of the stick?

Flight left two hours late with no real explanation and they inexplicably had the heat running on the flight as well

I like Alaska Air fine. Great crew. Late departure still arrived on time.

Plane delayed, emergency light on so we couldn’t board- further delayed, had to sit on run way for an hour for other plane priority

I missed my flight and was not able to rebook. I switched to jet blue for a same day flight. Both legs were cancelled. Unacceptable.

It was just fine. Short flight so nothing special to comment on.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Crew was not friendly when I went to request a seat change.

Really impressive staff at airport and on plane, especially given how busy it was

Was a great smooth flight from Detroit to San Diego.

So so. Terrible aircraft choice for that leg of the flight.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

Too many fees (but that seems to apply to all airlines nowadays)

For a 22 minute flight all you expect is for it to be safe and comfortable

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

Over two hours wait to get wheelchair assistance from arrival to the departure gate for LA was unreasonable even though there appreared to be heavy demand.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

I was delighted that we were able to get on the 4:40 pm flight rather than our original booking at 6:55 pm!! Other than that, the flight was comfortable and landed early😊

They charged me 212.00 for a heavy check in bag at the gate. The pricing and process was so confusing - as if it was designed to purposefully gouge customers who need to board plane. That experience combined with the outrageous price charged will prevent me from ever flying Spirit again. And I’ll be sure to tell the story to anyone who cares to hear.

The text told me it was changed to Terminal E and Gate D5. But with no one on site to ask questions there was confusion on where to go as all the gates were E's. Then we took the skyline to the D area. We left to get something to eat. No announcement was made but my daughter happened to asked and they told her our gate was moved to D12. I will not fly Spirit again.

The agent at the check in desk was absolutely rude. The rest of the team after that was good, but the check in process at LAS was miserable. The woman at the desk spoke like we were stupid and was rude throughout the process.

Its so random that they only allow 40 pounds on checked bags when all airlines take 55. They then charge you for each 10 extra pounds, so my checked suitcase was $130 and the flight $30 ... its like whattt, im for sure not traveling with Spirit again

So bad. The check in process was laborious and the check in agent didn't seem to know how to manage the process efficiently and was confused about how to check in my son's sports equipment. The baggage fees were outrageous and so expensive. $90 for a carry on bag? And $200 additional for 2 check ins. The security lines were insanely long and the terminal was not very nice in the Spirit area. $5 for a water on board. It was my first and last time flying Spirit - I tried to save $ by flying them due to the accommodating schedule but I should have paid for Southwest, because it would've actually ended up less expensive due to the free bags with Southwest. There were no charging ports on the airplane, no wifi and really uncomfortable seating. The flight crew were great though, courteous and efficient in their boarding. Flight was delayed 1 hour, but we made up 15 minutes in flight.

My experience was better than expected. What I did find not so great was the seats. Very little room, they did not recline and the tray table was the size of a post card. There was no food to try, just standard snacks that you had to pay for and I don’t know of any entertainment. I would fly again even though everything was an upcharge. Flight was on time with little disturbance

Okay, cost of baggage and bidding for a seat is weird.

thy don't even ofer water we have to buy it for $4.49 and paid for our cary on bags $100 each we never will fly in this company again.

Super cool and laid back, three lovely ladies. Couldn’t ask for better service.

It was fine. Boarding was a little rude. On flight staff was great. The cost to purchase everything was a bit annoying but I get that's the business model.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Not have to pay for every single item to take a flight. Seating and delays sucked.

Flight was cancelled and I had to spend the night in the airport lugging my suitcase around

If you don’t check in 24 hours in advance, they will charge you $110 to check your bag instead of the $30. I did not get an email with this information and did not check in. In addition, my flight home was cancelled at layover and I had to spend the night in the airport, and then have another layover at another airport before making it home. Will not fly frontier again.

Book cheap flights from Portland to Ontario

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Portland to Ontario found on KAYAK in the last 72 hours.
5/12Sun
nonstopFrontier
2h 15mPDX-ONT
$44
5/26Sun
nonstopFrontier
2h 15mPDX-ONT
$49
5/23Thu
1 stopDelta
6h 32mPDX-ONT
$98
5/27Mon
nonstopAlaska Airlines
2h 16mPDX-ONT
$124
7/8Mon
1 stopDelta
4h 43mPDX-ONT
$133
5/3Fri
1 stopAmerican Airlines
6h 56mPDX-ONT
$134
7/24Wed
1 stopUnited Airlines
6h 45mPDX-ONT
$153
5/26Sun
nonstopAlaska Airlines
2h 16mPDX-ONT
$159
7/29Mon
1 stopUnited Airlines
6h 45mPDX-ONT
$214
5/27Mon
2 stopsAmerican Airlines
11h 48mPDX-ONT
$294

Search by stops

Search by airline

Search by price

Last minute flights from Portland to Ontario

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Portland to Ontario that are departing in the next 10 days.
4/29Mon
multi-stopFrontier
18h 48mPDX-ONT
5/1Wed
nonstopFrontier
2h 20mONT-PDX
$94
4/27Sat
multi-stopFrontier
8h 26mPDX-ONT
4/30Tue
multi-stopFrontier
4h 38mONT-PDX
$95
4/27Sat
multi-stopAmerican Airlines
6h 56mPDX-ONT
4/29Mon
multi-stopAmerican Airlines
7h 16mONT-PDX
$301
4/26Fri
multi-stopDelta
4h 39mPDX-ONT
5/10Fri
multi-stopDelta
6h 43mONT-PDX
$344
4/28Sun
multi-stopUnited Airlines
7h 09mPDX-ONT
4/30Tue
multi-stopUnited Airlines
4h 02mONT-PDX
$354
4/26Fri
multi-stopAmerican Airlines
6h 56mPDX-ONT
4/30Tue
multi-stopAmerican Airlines
7h 16mONT-PDX
$359
4/26Fri
multi-stopDelta
5h 37mPDX-ONT
4/30Tue
multi-stopDelta
7h 35mONT-PDX
$364
4/26Fri
multi-stopUnited Airlines
7h 09mPDX-ONT
4/28Sun
multi-stopUnited Airlines
4h 02mONT-PDX
$370
4/29Mon
multi-stop
9h 55mPDX-ONT
5/1Wed
multi-stop
4h 33mONT-PDX
$556
4/26Fri
multi-stop
5h 06mPDX-ONT
4/27Sat
multi-stop
12h 51mONT-PDX
$613

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Portland - Ontario Flights

Departure:

Portland (PDX)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Portland

Cabin classes:

$606
$542
$48