$63 Find Cheap Flights from Portland to Ontario - Compare and Save

These are the earliest and latest flight times available from Portland to Ontario:

• Earliest: departs at 7:29 am and lands at 9:51 am
• Latest: departs at 9:34 pm and lands at 11:56 pm.

The flight takes about 2h 22m.

Three cabin classes are available on flights from Portland to Ontario:

• Economy Class
• Business Class
• First Class

A nonstop flight from Portland to Ontario takes 2h 22m, covering 839 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from Portland to Ontario range from $229 to $399, with an average of $306 over the past 12 months. Anything below $229 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 44% above the $306 route average. Book 8 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $246 round-trip via Denver Intl (DEN), compared to $304 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $65–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737-800 Passenger/BBJ2 (winglets) family is used most often on this route, operated mainly by Alaska Airlines. Other aircraft seen on the route include Boeing 737-900 Passenger/BBJ3 (winglets) variants.

Morning is the busiest departure period on Portland to Ontario flights, with 50% of flights leaving in that window. Afternoon departures account for 50%, evening flights for 0%, and night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $235 to $1,803. That means the highest observed fare was about 8x higher than the lowest one.

Alaska Airlines is the only airline on the Portland to Ontario route offering in-flight Wi-Fi. Pricing depends on fare class.

One-way fares from Portland to Ontario are currently lower than usual. Average one-way flight prices are about $102, which is 48% below the typical average for this route.

Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:

• Fox
• Thrifty
• Europcar
• Dollar
• Alamo

Flights from Portland to Ontario usually depart from Portland (PDX) and arrive at Ontario (ONT).

One-stop flights from Portland to Ontario most commonly connect through:

• Sacramento Intl (SMF) - 38% of one-stop connections
• San Francisco (SFO) - 24% of one-stop connections
• Denver Intl (DEN) - 12% of one-stop connections
• Oakland (OAK) - 11% of one-stop connections

Yes. Flexible dates can save you up to 25% on flights from Portland to Ontario. Monday is the cheapest departure day at $269 round-trip on average, while Tuesday is the most expensive at $357, a difference of $88.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

2 airlines operate flights between Portland and Ontario. The airlines offering nonstop flights on this route include:

• Alaska Airlines
• Frontier

Flying via Sacramento Intl (SMF) gives the shortest average 1-stop total travel time at 4h 01m, compared with 4h 24m via Oakland (OAK) and 4h 54m via San Francisco (SFO).

Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Among airlines operating Portland to Ontario flights:

• Alaska Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• Alaska Airlines: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

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.

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.

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.

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.