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Uncover the best deals on Ontario to Portland flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest ONT - PWM Flights
Useful information for finding best airline tickets from Ontario International to Portland International Jetport on your next trip.
Cheapest Round Trip Flight
$236
Southwest Airlines
• 2 stops
• 17h
Jul 21 – Jul 22
The cheapest round trip flight from Ontario to Portland (ONT-PWM-ONT) is currently $236
Fastest Flight
16h 45m
The fastest nonstop flight from Ontario to Portland (ONT-PWM) takes 16h 45m
Top Airlines Flying from Ontario to Portland
Latest Flight Deals from Ontario (ONT) to Portland (PWM)
Compare and book low fare round-trip air tickets from Ontario to Portland. Ideal for travelers with confirmed return itineraries.
Jul 21 - Jul 22, Economy
Ontario → Portland
17h
8:15 AM - 9:35 PM • 2 stops
Ontario → Portland
16h 55m
1:05 PM - 8:20 PM • 2 stops
Southwest Airlines
Jul 21 - Jul 22, Economy
Ontario → Portland
16h 45m
9:55 AM - 11:00 PM • 2 stops
Ontario → Portland
20h 50m
10:30 AM - 8:20 PM • 2 stops
Southwest Airlines
Jul 21 - Jul 22, Economy
Ontario → Portland
20h 20m
6:35 PM - 9:55 AM • 2 stops
Ontario → Portland
16h 45m
3:45 PM - 10:50 PM • 2 stops
Southwest Airlines
Dec 23 - Dec 29, Economy
Ontario → Portland
20h 23m
7:00 AM - 10:23 PM • 1 stop
Ontario → Portland
31h 54m
6:00 AM - 10:14 PM • 1 stop
Delta Airlines
Dec 23 - Dec 29, Economy
Ontario → Portland
33h 44m
10:59 PM - 10:23 PM • 1 stop
Ontario → Portland
25h 18m
6:00 AM - 6:18 PM • 1 stop
Delta Airlines
FAQs on Ontario to Portland Flights
What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to PWM?
The most popular airline flying from Ontario to Portland are
Can I fly from ONT to PWM non-stop?
NO
Which airlines fly nonstop between Ontario and Portland?
The non-stop flights between Ontario and Portland are .
What’s the earliest departure time from ONT to PWM Airport?
The earliest flight leaves ONT at 7:00 am and lands in PWM - Portland International Jetport
What are the airports in Portland?
PWM
Can I make changes to my Ontario to Portland flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ONT to PWM?
Read the fare rules of the Ontario to Portland air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Ontario and Portland?
operate flights between Ontario and Portland
How long does a flight from Ontario to Portland take?
It takes approximately 6 hour to fly non-stop from ONT to PWM, which is 2597.99 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to Portland (PWM) ?
In the past couple of days, the cheapest tickets to PWM from ONT were found on DL : USD 785
Do I need a passport to fly between ONT and PWM?
No
What’s the latest departure time from ONT to PWM ?
The last flight leaves ONT at 10:59 pm
Ontario (ONT) to Portland (PWM): Airport Information
| Origin Airport | Ontario International , Ontario, US |
| Destination Airport | Portland International Jetport , Portland, US |
| Distance | 2598 miles |
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