Cheap Flight Tickets from Portland (PDX) to Ontario (ONT), Starting at $139

Good to Know: Cheapest and Fastest PDX - ONT Flights

Useful information for finding best airline tickets from Portland International to Ontario International on your next trip.

Cheapest Round Trip Flight

$255

WN Southwest Airlines • 1 stop • 5h 55m

Nov 07 – Nov 24

The cheapest round trip flight from Portland to Ontario (PDX-ONT-PDX) is currently $255

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Cheapest One way Flight

$139

AS Alaska Airlines • 1 stop • 8h 41m

Sep 20

The cheapest one way flight from Portland to Ontario (PDX-ONT) is currently $139

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Cheapest Direct Flight

$232

AS Alaska Airlines • nonstop • 3h 53m

Oct 02

The cheapest nonstop flight from Portland to Ontario (PDX-ONT) is currently $232

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Fastest Flight

3h 45m

The fastest nonstop flight from Portland to Ontario (PDX-ONT) takes 3h 45m

Top Airlines Flying from Portland to Ontario

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

Alaska Airlines -AS

Alaska Airlines

Latest Flight Deals from Portland (PDX) to Ontario (ONT)

Compare and book low fare round-trip air tickets from Portland to Ontario. Ideal for travelers with confirmed return itineraries.

Nov 07 - Nov 24, Economy
WN
Portland → Ontario
5h 55m
3:10 PM - 7:05 PM • 1 stop
WN
Portland → Ontario
7h 20m
5:35 AM - 10:15 AM • 1 stop
$255
Southwest Airlines
Nov 07 - Nov 24, Economy
WN
Portland → Ontario
10h 55m
5:55 AM - 12:50 PM • 1 stop
WN
Portland → Ontario
5h 50m
4:25 PM - 8:15 PM • 1 stop
$255
Southwest Airlines
Nov 07 - Nov 24, Economy
WN
Portland → Ontario
7h
2:55 PM - 7:15 PM • 1 stop
WN
Portland → Ontario
9h
9:50 AM - 3:30 PM • 1 stop
$255
Southwest Airlines
Nov 07 - Nov 24, Economy
DL
Portland → Ontario
11h 41m
5:35 AM - 12:36 PM • 1 stop
DL
Portland → Ontario
10h 35m
7:00 AM - 1:35 PM • 1 stop
$389
Delta Airlines
Nov 07 - Nov 24, Economy
DL
Portland → Ontario
7h 34m
5:49 PM - 10:43 PM • 1 stop
DL
Portland → Ontario
10h 8m
6:00 AM - 12:08 PM • 1 stop
$389
Delta Airlines
Nov 07 - Nov 24, Economy
DL
Portland → Ontario
10h 28m
9:55 AM - 4:23 PM • 1 stop
DL
Portland → Ontario
10h 8m
6:00 AM - 12:08 PM • 1 stop
$389
Delta Airlines

Fly from Portland to Ontario with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Portland to Ontario? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Portland to Ontario Flights

What are the airports in Portland?
PDX
What’s the most popular airline flying from PDX to ONT?
The most popular airline flying from Portland to Ontario are
Can I fly from PDX to ONT non-stop?
Yes, you can fly PDX to ONT non-stop on
Which airlines fly nonstop between Portland and Ontario?
The non-stop flights between Portland and Ontario are .
What’s the earliest departure time from PDX to ONT Airport?
The earliest flight leaves PDX at 5:35 am and lands in ONT - Ontario International
What are the airports in Ontario?
ONT
Can I make changes to my Portland to Ontario 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 PDX to ONT?
Read the fare rules of the Portland to Ontario 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 Portland and Ontario?
operate flights between Portland and Ontario
How long does a flight from Portland to Ontario take?
It takes approximately 2 hour to fly non-stop from PDX to ONT, which is 838.45 miles by air.
Which airlines provide the cheapest flights from Portland (PDX) to Ontario (ONT) ?
In the past couple of days, the cheapest tickets to ONT from PDX were found on AS : USD 223
Do I need a passport to fly between PDX and ONT?
No
What’s the latest departure time from PDX to ONT ?
The last flight leaves PDX at 5:53 pm

Portland (PDX) to Ontario (ONT): Airport Information

Origin Airport Portland International , Portland, US
Destination Airport Ontario International , Ontario, US
Distance 838 miles

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