$69 Cheap Flights from Portland to Ontario

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Change your flight without a fee on select flights

Find The Best Dates To Fly from Portland Intl. to Los Angeles - Ontario Intl.

Amazing PDX to ONT Flight Deals

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were $132 round trip and $69 one way. Prices and availability subject to change. Additional terms may apply.

Flight Schedule for PDX to ONT

CarrierFlightDepart PDXArrive ONTSun
AS132006:10 pm08:20 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
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Frequently asked questions

Can I catch a flight from PDX Airport to Los Angeles - Ontario Intl. Airport (ONT) right now?
Ensure you check out our Covid-19 Travel Advisor to learn if there are any present quarantine requirements and travel advice reports in place in Los Angeles - Ontario Intl. Airport (ONT) when flying from Portland Airport.
Are there direct flights from Portland Airport to Ontario Airport?
If you’d prefer to avoid layovers, you’ll want to organize your flight from PDX to Ontario Airport as early as possible. Alaska Airlines is the only carrier that offers nonstop flights between Portland and Ontario.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to ONT, please visit our Customer Service Portal.
How long is the flight from Portland Airport to Ontario Airport?
With the flight from Portland Airport to Ontario Airport taking on average 5 hours and 49 minutes, there’ll be time to get a lot of things done in the air. Make the most of the trip by bringing that book you’ve always wanted to read, exploring the in-flight entertainment or having a good snooze. You’ll probably even find you’re able to squeeze in all three before the plane lands.
What is the flight distance from PDX to ONT?
With a mere 840 mi separating Portland Airport and Ontario Airport, there won’t be long between the fasten seat belt sign flicking off and the captain preparing the wheels for landing.
What airlines fly from PDX Airport to Ontario Airport?
Many savvy wanderers choose to take to the skies with Alaska Airlines from Portland to Ontario. This reputable airline not only offers as many as 34 flights each month, it also has direct services.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with Southwest Airlines, American Airlines or Delta you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.


Traveling From Portland Intl.
Traveling To Los Angeles - Ontario Intl.
Shortest Flight Time hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price $132

Route Info

Flight path for flights from Portland International Airport to LA/Ontario International Airport.

843.00 miles

Airline carriers and aircraft used on flights from PDX to ONT

Airline Carrier
Alaska Airlines
Boeing 737-800 pax

Discover our best flights from Portland PDX to Ontario ONT. 

With 4 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 


Find our best return flights from Portland PDX to Ontario ONT at the right price  

Airfares to Ontario ONT from Portland PDX currently cost between $132 and $164. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 


Book one-way flights from Portland PDX to Ontario ONT 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Portland PDX to Ontario ONT on Travelocity starting at $69. Prices and availability subject to change. Additional terms may apply. 


Get to Ontario ONT from Portland PDX quicker with direct flights. 

Get to Ontario faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to ONT from PDX to take around hour(s) min(s).  


Find our cheapest airfares for flights from Portland PDX to Ontario ONT

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to ONT from PDX. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  


Get our best airfare deals for your flight from Portland PDX to Ontario ONT today 

If you’re flexible about when you travel, January is usually the cheapest month to fly from Portland PDX to Ontario ONT. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 


Book flexible airline tickets for flights to Ontario ONT from Portland PDX 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to ONT from PDX have this option.  


Travel with confidence when you book flights to Ontario ONT from Portland PDX with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.