Cheap Flight Tickets from Portland (PDX) to Ontario (ONT), Starting at $122

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

$346

AS Alaska Airlines • 1 stop • 3h 45m

Sep 30 – Oct 28

The cheapest round trip flight from Portland to Ontario (PDX-ONT-PDX) is currently $346

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Cheapest One way Flight

$122

DL Delta Airlines • 1 stop • 7h 14m

Aug 24

The cheapest one way flight from Portland to Ontario (PDX-ONT) is currently $122

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Cheapest Direct Flight

$232

DL Delta Airlines • nonstop • 3h 46m

Sep 29

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

Delta Airline, DL

Delta Airlines

Alaska Airlines -AS

Alaska Airlines

Southwest Airlines-WN

Southwest Airlines

United Airlines, UA

United Airlines

Sun Country Airlines (SY)

Sun Country Airlines

American Airlines, AA

American 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.

Sep 30 - Oct 28, Economy
AS
Portland → Ontario
3h 45m
10:49 AM - 4:10 PM • 1 stop
AS
Portland → Ontario
3h 40m
6:02 AM - 1:24 PM • 1 stop
$346
Alaska Airlines
Sep 30 - Oct 28, Economy
AS
Portland → Ontario
3h 45m
2:53 PM - 4:10 PM • 1 stop
AS
Portland → Ontario
3h 40m
7:25 AM - 9:45 AM • nonstop
$346
Alaska Airlines
Sep 30 - Oct 28, Economy
AS
Portland → Ontario
3h 45m
6:20 AM - 11:16 AM • 1 stop
AS
Portland → Ontario
3h 40m
7:25 AM - 9:45 AM • nonstop
$354
Alaska Airlines
Sep 30 - Oct 28, Economy
AS
Portland → Ontario
3h 45m
9:33 PM - 4:10 PM • 1 stop
AS
Portland → Ontario
3h 40m
7:25 AM - 9:45 AM • nonstop
$357
Alaska Airlines
Sep 30 - Oct 28, Economy
AS
Portland → Ontario
3h 45m
6:20 AM - 4:10 PM • 2 stops
AS
Portland → Ontario
3h 40m
7:25 AM - 9:45 AM • nonstop
$367
Alaska Airlines
Sep 30 - Oct 28, Economy
AS
Portland → Ontario
3h 45m
1:59 PM - 7:03 PM • 1 stop
AS
Portland → Ontario
3h 40m
6:02 AM - 1:24 PM • 1 stop
$426
Alaska 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 5:45 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 DL : USD 122
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 9:33 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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