Cheap Flight Tickets from Portland (PDX) to Ontario (ONT), Starting at $141

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

$141

DL Delta Airlines • 1 stop • 9h 19m

Oct 01 – Oct 03

The cheapest round trip flight from Portland to Ontario (PDX-ONT-PDX) is currently $141

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Cheapest Direct Flight

$291

AS Alaska Airlines • nonstop • 3h 42m

Aug 03

The cheapest nonstop flight from Portland to Ontario (PDX-ONT) is currently $291

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Fastest Flight

3h 40m

The fastest nonstop flight from Portland to Ontario (PDX-ONT) takes 3h 40m

Top Airlines Flying from Portland to Ontario

Delta Airline, DL

Delta Airlines

Southwest Airlines-WN

Southwest Airlines

United Airlines, UA

United Airlines

Alaska Airlines -AS

Alaska 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.

Oct 01 - Oct 03, Economy
DL
Portland → Ontario
9h 19m
11:20 AM - 5:19 PM • 1 stop
DL
Portland → Ontario
3h 36m
7:35 AM - 9:51 AM • nonstop
$141
Delta Airlines
Oct 01 - Oct 03, Economy
DL
Portland → Ontario
7h 25m
12:34 PM - 5:19 PM • 1 stop
DL
Portland → Ontario
3h 42m
10:30 AM - 12:52 PM • nonstop
$141
Delta Airlines
Oct 01 - Oct 03, Economy
DL
Portland → Ontario
7h 31m
5:49 PM - 10:40 PM • 1 stop
DL
Portland → Ontario
3h 37m
6:30 PM - 8:47 PM • nonstop
$141
Delta Airlines
Oct 01 - Oct 03, Economy
DL
Portland → Ontario
9h 4m
5:30 AM - 11:14 AM • 1 stop
DL
Portland → Ontario
3h 42m
10:30 AM - 12:52 PM • nonstop
$141
Delta Airlines
Aug 15 - Aug 15, Economy
AS
Portland → Ontario
3h 40m
7:36 AM - 9:56 AM • nonstop
AS
Portland → Ontario
3h 41m
9:35 PM - 11:56 PM • nonstop
$551
Alaska Airlines
Aug 15 - Aug 15, Economy
AS
Portland → Ontario
7h 35m
6:19 AM - 11:14 AM • 1 stop
AS
Portland → Ontario
9h 9m
2:05 PM - 7:54 PM • 1 stop
$681
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 5:30 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 141
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 5:5700 pm

Essential Information for Booking Flights from Portland (PDX) - AI Insights

What's the cheapest airline from pdx to ont?
You can find budget-friendly flights from Portland International Airport (PDX) to Ontario International Airport (ONT) on airlines such as Southwest Airlines. For a round-trip economy flight, consider booking at least 55 days in advance to secure Low Fares. You can search for the cheapest airfares on our website and compare prices across multiple airlines.
What's the popular airline to fly from pdx to ont?
You can fly from Portland International Airport (pdx) to Ontario International Airport (ont) on Southwest Airlines. This is a direct flight with no stops, making it a convenient option for your round-trip journey. With Southwest Airlines, you can enjoy affordable airfares and budget-friendly flights. Book in advance to secure the best savings.
What's the cheapest day of the week to fly from pdx to ont?
The cheapest day to fly from Portland International Airport (PDX) to Ontario International Airport (ONT) is typically Sunday. This is based on historical data, which suggests that Sundays tend to have lower airfare prices compared to other days of the week.
What's the cheapest month to fly from pdx to ont?
The cheapest month to fly from Portland International Airport (pdx) to Ontario International Airport (ont) is December. Flying during this time can result in budget-friendly flights, making it an ideal option for travelers.
Which airline/airlines fly from pdx to ont?
The airlines that fly from Portland International Airport (PDX) to Ontario International Airport (ONT) include Allegiant Airlines, Hawaiian Airlines, United Airlines, Aeromexico, Delta Air Lines, Sun Country Airlines, Frontier Airlines, JetBlue Airways, Alaska Airlines, and American Airlines. You can find affordable airfares on these airlines for your round-trip journey in July or October.
What is the cheapest airfare from Portland International to Ontario International for a round trip journey?
The cheapest airfare from Portland International to Ontario International can be found on Southwest Airlines (WN), with prices starting at ₰ 1234. Book your flight in advance to get the best deals, and consider flying on Sundays for the cheapest fares.
How far in advance can I book my flight to get the best deals on airfares?
It is recommended to book your flight at least 55 days in advance to get the best deals on airfares. This allows you to take advantage of the cheapest flights available.
Can I find cheap flights with airlines that operate direct or connecting flights?
Yes, you can find cheap flights with airlines that operate both direct and connecting flights. Southwest Airlines (WN) offers competitive prices on both types of flights.
Are there any discounts available for busco passengers booking through this website?
Unfortunately, we do not currently offer any discounts specifically for busco passengers. However, our website provides a wide range of affordable flight options to suit all budgets.
What is the process of booking airfare and fares on fareleaders.com like?
Booking airfare and fares on fareleaders.com is easy and straightforward. Simply enter your travel details, select your preferred airline and dates, and our system will provide you with a list of available flights and prices.
How do I know if my flight is eligible for need-based assistance?
To determine if your flight is eligible for need-based assistance, please contact our customer service team directly. We will be happy to assist you in determining your eligibility.
Can I book a one-way flight instead of a round trip journey?
Yes, you can book a one-way flight on fareleaders.com. Simply select the 'one-way' option when booking your flight, and our system will provide you with a list of available flights and prices.

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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