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ONT - PWM

$154 Find cheap flights from Ontario to Portland

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 Portland departing on 7/20. 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
Wed 7/10
Wed 7/17

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Portland, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Portland, as well as popular online travel agencies
In the last 7 days travelers have searched 42,898,604 times on KAYAK, and here is why:

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Portland 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
11:36 pm - 12:11 pmONT-PWM
9h 35m1 stop
1:06 pm - 10:21 pmPWM-ONT
12h 15m1 stop
$274JetBlue
Find Deal
Mon, Sep 16 - Mon, Sep 23
10:30 pm - 12:13 pmONT-PWM
10h 43m1 stop
3:37 pm - 10:09 pmPWM-ONT
9h 32m1 stop
$286American Airlines
Find Deal
Tue, Sep 3 - Wed, Sep 11
10:30 pm - 12:13 pmONT-PWM
10h 43m1 stop
11:10 am - 8:02 pmPWM-ONT
11h 52m2 stops
$291American Airlines
Find Deal
Tue, Sep 3 - Wed, Sep 11
8:10 am - 10:23 pmONT-PWM
11h 13m2 stops
11:00 am - 8:02 pmPWM-ONT
12h 02m2 stops
$296American Airlines
Find Deal
Sat, Aug 31 - Sat, Sep 7
6:40 am - 10:28 pmONT-PWM
12h 48m2 stops
12:48 pm - 8:02 pmPWM-ONT
10h 14m2 stops
$320American Airlines
Find Deal
Tue, Sep 3 - Wed, Sep 11
11:59 pm - 12:19 pmONT-PWM
9h 20m1 stop
2:38 pm - 8:45 pmPWM-ONT
9h 07m1 stop
$362American Airlines
Find Deal
Sat, Aug 31 - Sat, Sep 7
6:00 am - 11:11 pmONT-PWM
14h 11m2 stops
11:26 am - 9:52 pmPWM-ONT
13h 26m2 stops
$396United Airlines
Find Deal
Wed, Nov 6 - Sat, Nov 16
11:36 pm - 12:11 pmONT-PWM
9h 35m1 stop
1:06 pm - 10:21 pmPWM-ONT
12h 15m1 stop
$468JetBlue
Find Deal
Tue, Oct 8 - Sun, Oct 13
6:00 am - 11:59 pmONT-PWM
14h 59m2 stops
3:40 pm - 9:02 pmPWM-ONT
8h 22m1 stop
$477United Airlines
Find Deal
Mon, Sep 2 - Fri, Sep 6
10:00 pm - 12:13 pmONT-PWM
11h 13m2 stops
5:37 am - 12:15 pmPWM-ONT
9h 38m2 stops
$2,198Delta
Find Deal
Wed, Jul 17 - Wed, Jul 24

Flights from Ontario to Portland - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Portland 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 Ontario to Portland?

The average price of all flights from Ontario to Portland clicked on KAYAK for each day over the last 12 months.
When flying from Ontario to Portland, you should consider leaving on a Saturday and avoid Fridays if you are looking for the best rates. For your return to Ontario, you’ll find the best rates on Saturdays and the most expensive ones on Fridays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Portland, 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 Portland is September, where tickets cost $362 on average. On the other hand, the most expensive months are December and March, where the average cost of tickets is $668 and $594 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Portland, 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 Ontario to Portland, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 50 days before departure.

Which airlines provide the cheapest flights from Ontario to Portland?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Frontier ($154) and United Airlines ($334). The cheapest round-trip tickets were found on JetBlue ($274) and American Airlines ($286).

Good to know

Low season

April

High season

July

Cheapest flight

$154
Best time to beat the crowds but there is an average 194% increase in price.
Most popular time to fly with an average 17% increase in price.
Flight from Ontario to Portland

When to book flights from Ontario to Portland

Are your dates flexible? Find out the best times to travel from Ontario to Portland 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 Ontario to Portland

  • What is the cheapest flight from Ontario to Portland?

    In the last 3 days, the lowest price for a flight from Ontario to Portland was $154 for a one-way ticket and $274 for a round-trip.

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

    No

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

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Portland?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Ontario and Portland, with oneworld being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from Ontario to Portland are Delta and JetBlue. With an average price for the route of $523 and an overall rating of 8.0, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of $298 and an overall rating of 7.6.

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

    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 Portland.

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

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

    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 Portland with an airline and back to Ontario with another airline. Booking your flights between Ontario and PWM 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 Ontario to Portland?

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

See more FAQs

Top 4 airlines serving from Ontario to Portland

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Portland. 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 Portland? 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
DeltaOverall score based on 10295 reviews
8.6Crew
7.4Food
8.2Boarding
8.0Entertainment
7.9Comfort
Airline reviews

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

4.0 OkayBrooke, Jun 2024SFO - MSP
Read more about Delta reviews

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

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

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

They put me on a chair in between two men, one overweight who was almost falling on top of me, and the other was even uncomfortable because I was half falling because of what the other was pushing me. I stayed with. my feet were swollen from fluid retention and from being unable to accommodate myself. it was very uncomfortable. I asked for help but they told me that the flight was full and they couldn't help me. I got off the plane almost unable to walk due to the inflammation. and then at FLL airport I asked for help because I couldn't go to my next flight, which was a connection.

The walk from baggage claim to the taxi is very difficult for older people I will never fly into JFK again. It is physically challenging

Overall fine but both ways for this trip was delayed.

Flight was delayed by almost 5 hours. Suitcase was not loaded despite the flight being near empty (my colleagues’ suitcases did reach JFK, unlike mine). Had to argue on phone to get JetBlue to deliver the case to my hotel. Never again

The flight was excellent. The crew was welcoming and attentive.

Great! I love Jet Blue. My favorite airline! Very efficient, clean and timely.

Run out of snack choices. Why are the seats not padded for your butt? Are we sitting on blocks of wood or metal for $250-300 a pop? This ain’t spirit. Let’s get it together people

We were told that our flight would be delayed for 90+ minutes because of weather, so we went to get something to eat only to have them randomly start boarding 15 minutes after the announcement, with no warning.

Entertainment... No earphones passed out. Many including me couldn't use the TV. Legroom was good. Crew was indifferent and a bit surly. Free wifi was a nice convenience. Check in desk location was unknown. Gate number on the boarding passes was wrong.

Going through JFK’s security is a mess. The TSA security said no shoes on the bins. So, we place our shoes in the belt and they came out all over the belt. Boarding was delayed and Flight as well.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

I had a great flight. Everything went smoothly and the flight arrived early.

On time take off…US cabins look tired and need of refresh!

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Comfort of seats, ease of boarding. Food selection could be better

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

We are gluten free, there were not any available complimentary gluten free options.

No meal on a cross country flight? SFO-MiA is pretty much the definition of a coast to coast flight. No meal provided. Sky high wi-fi rates too. Stop nickel and diming your customers.

Book cheap flights from Ontario to Portland

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Portland found on KAYAK in the last 72 hours.
7/20Sat
2 stopsFrontier
16h 06mONT-PWM
$154
7/13Sat
2 stopsFrontier
16h 06mONT-PWM
$156
7/2Tue
2 stopsUnited Airlines
14h 53mONT-PWM
$334
7/4Thu
2 stopsUnited Airlines
14h 53mONT-PWM
$354
6/25Tue
2 stopsAmerican Airlines
12h 11mONT-PWM
$358
6/25Tue
1 stopAmerican Airlines
10h 25mONT-PWM
$414
7/4Thu
1 stopAmerican Airlines
9h 19mONT-PWM
$428
7/10Wed
2 stopsAmerican Airlines
12h 10mONT-PWM
$433
7/11Thu
2 stopsDelta
11h 13mONT-PWM
$1,355
7/6Sat
2 stopsAlaska Airlines
13h 35mONT-PWM
$2,220

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Last minute flights from Ontario to Portland

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 Ontario to Portland that are departing in the next 10 days.
6/13Thu
multi-stopUnited Airlines
7h 24mONT-PWM
6/15Sat
multi-stopUnited Airlines
8h 18mPWM-ONT
$756
6/12Wed
multi-stopUnited Airlines
7h 24mONT-PWM
6/24Mon
multi-stopUnited Airlines
8h 28mPWM-ONT
$807
6/15Sat
multi-stopDelta
12h 28mONT-PWM
6/25Tue
multi-stopDelta
9h 40mPWM-ONT
$1,772

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Ontario - Portland Flights

Departure:

Ontario (ONT)United States

Destination:

Portland (PWM)United States

Return flight deals:

Portland - Ontario

Cabin classes: