Cheap flights from Portland to Ontario (PDX - ONT)

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The best prices from Portland to Ontario are usually found in April or January, booked 34 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

How to find the cheapest flight from
Portland (PDX) to Ontario (ONT)

All the information you need to plan the best PDX to ONT flight in 2022: compare Portland to Ontario flight prices with the expected peak season, weather and rainfall in Ontario.
PDX - ONT
Price
$176 - $235
ONT
Temperature
53.6 - 78.8 °F
ONT
Rainfall
0.1 - 3.4 inches

Popular in

November

High demand for flights, 14% potential price rise

Cheapest in

April

Best time to find cheap flights, 13% potential price drop

Round-trip from

$176

From Portland to Ontario

One-way from

$119

One-way flight from Portland to Ontario

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Portland to Ontario?

Flights from Portland to Ontario are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Ontario.

What is the cheapest month to fly from Portland to Ontario?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to Ontario. Flights to Ontario from Portland in September are about $178 on average during September, but can be found for as low as $83.

How far in advance should I book a flight from Portland to Ontario?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 50 days in advance, which can save you up to 72% on flights from Portland to Ontario compared to booking the week you need them. Waiting 50 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $226. For sooner than that we have options available in the next 3 days from $299.

When is the cheapest time to fly from Portland to Ontario (PDX - ONT)?

When flying from Portland to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 16% versus a flight in the morning.

Cheap flights from Portland to Ontario in May, June 2022

The best prices found for PDX to ONT flights for May, June
7 Jun - 14 Jun
$200pp
PDX
Portland
Multiple Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
Multiple Airlines
 
1 STOP
PDX
Portland
8 Jun - 14 Jun
$225pp
PDX
Portland
Multiple Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
Multiple Airlines
 
1 STOP
PDX
Portland
7 Jun - 21 Jun
$228pp
PDX
Portland
Multiple Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
Multiple Airlines
 
1 STOP
PDX
Portland

Portland to Ontario 2022 flight deals

Cheap flights to Ontario from Portland found for this year
8 Dec - 11 Dec
$198pp
PDX
Portland
Alaska Airlines
Non-Stop
ONT
Ontario
ONT
Ontario
Alaska Airlines
Non-Stop
PDX
Portland
7 Jun - 14 Jun
$200pp
PDX
Portland
Multiple Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
Multiple Airlines
 
1 STOP
PDX
Portland
11 Dec - 10 Jan
$207pp
PDX
Portland
Multiple Airlines
Non-Stop
ONT
Ontario
ONT
Ontario
United Airlines
 
1 STOP
PDX
Portland

Non-stop flights to Ontario from Portland

Save time with Portland to Ontario direct flight deals
7 Sep - 13 Sep
$198pp
PDX
Portland
Alaska Airlines
Non-Stop
ONT
Ontario
ONT
Ontario
Alaska Airlines
Non-Stop
PDX
Portland
15 Sep - 19 Sep
$218pp
PDX
Portland
Alaska Airlines
Non-Stop
ONT
Ontario
ONT
Ontario
Alaska Airlines
Non-Stop
PDX
Portland
9 Sep - 13 Sep
$258pp
PDX
Portland
Alaska Airlines
Non-Stop
ONT
Ontario
ONT
Ontario
Alaska Airlines
Non-Stop
PDX
Portland

Last minute flights from Portland to Ontario

Late deals on round-trip flights to Ontario from Portland, departing today and this week
24 May - 25 May
$247pp
PDX
Portland
Multiple Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
Delta
 
1 STOP
PDX
Portland
28 May - 31 May
$259pp
PDX
Portland
Multiple Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
Multiple Airlines
 
1 STOP
PDX
Portland
24 May - 29 May
$269pp
PDX
Portland
Multiple Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
Delta
 
1 STOP
PDX
Portland

One-way flights to Ontario from Portland

The cheapest one-way flights from Portland to Ontario
3:30 am - 5:45 am
Alaska Airlines
Nonstop
2h 15m
PDX - ONT
Alaska Airlines
1:45 am - 8:29 am
Delta
1 Stop
6h 44m
PDX - ONT
Delta
$128
Delta
3:26 pm - 8:35 pm
United Airlines
1 Stop
5h 09m
PDX - ONT
United Airlines
$129
United

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Portland</span> to <span class="emphasized">Ontario</span> flights.

Flight FAQs

From Portland to Ontario

What airports do I use to fly from Portland to Ontario?

You will need to book a flight from Portland to Ontario if you want to fly from Portland to Ontario. At least 10 different airlines have flights from Portland (PDX) to Ontario (ONT) on a regular basis. There are 3 flights to Ontario from the Portland airport per day. If you manage to book one that is nonstop, then you can expect the flight time from PDX to ONT to be around 2h 15m.

Which airlines flying from Portland to Ontario have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Portland to Ontario that may be offering flexible cancellation policies are Alaska Airlines, United Airlines, and Delta. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Portland to Ontario for under $200 on Cheapflights?

Yes, there are multiple flights from Portland to Ontario for under $200. The cheapest flight booked recently is on Frontier for just $196, but on average you can expect to pay $225.

Are there nonstop flights from Portland to Ontario for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from Portland to Ontario under $200. A good price for a nonstop flight from Portland to Ontario is less than $379.

Are there last-minute flights available from Portland to Ontario for under $300?

There are currently 20+ open flights from Portland to Ontario within the next 7 days for less than $300.

How popular is this Portland to Ontario flight route?

Flights from Portland to Ontario have been viewed 48 times in the past calendar month.

What are the cheapest airlines flying from Portland to Ontario round-trip?

Frontier, at $196, was found to be the cheapest airline from Portland to Ontario.Alternate airlines to your destination round-trip include Alaska Airlines and Delta. Frontier is priced at 3% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Portland to Ontario one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $88. Users have also found prices from $99 and $108 on Alaska Airlines and Delta, respectively.

What are the most reliable airlines from Portland to Ontario?

The top 3 most reliable airlines when flying from Portland to Ontario are SkyWest Airlines (89%), Horizon Air (88%) and Alaska Airlines (87%).

What are the most popular airlines that fly from Portland to Ontario?

The most popular airlines flying from Portland to Ontario are American Airlines, Alaska Airlines and JetBlue. Something to consider prior to booking your flight.

What are the cheapest flights from Portland to Ontario?

While on average a flight from Portland to Ontario is generally $379, our data shows the cheapest flight currently is $96. When looking at the most popular route, (Portland - Ontario), you can expect to pay $198 for that flight.

COVID Restrictions

View COVID Travel Restrictions for Ontario, CA

Do I need a COVID test to fly to Ontario from Portland?

Information is based on travel restrictions for travel to Ontario within the United States

Most visitors from Portland need to provide a negative COVID-19 test result and/or quarantine to enter Ontario.

COVID-19 testing requirements
Visitors from Portland must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Ontario.

Quarantine requirements
Visitors from Portland are not required to quarantine after entering Ontario.

Do I need a test to fly back to Portland from Ontario?

Returning to Portland from Ontario

COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Portland.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering Portland.

Hide COVID Travel Restrictions for Ontario, CA

Alternative routes for Portland to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Ontario

Things to know before you go - useful duration and weather info for your trip from Portland to Ontario.
Flight duration from PDX to ONT
2h 15m

Airports servicing Portland

Airports servicing Ontario

Top 7 airlines flying from Portland to Ontario

The chart below displays the airlines Cheapflights users traveling from Portland to Ontario choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Juneyao Airlines
$16 $18 No cancel fee 66%

We couldn't confirm the COVID-19 safety measures taken by Juneyao Airlines. Please check directly on their website for additional information.

JetBlue
$79 $211 No cancel fee 62%
Frontier
$80 $215 No cancel fee 62%
Alaska Airlines
$89 $239 No cancel fee 75%
Delta
$97 $229 No cancel fee N/A
United Airlines
$97 $257 No cancel fee 69%
American Airlines
$107 $265 No cancel fee 71%

Hourly flight availability from Portland to Ontario

See what time of day planes typically take off from Portland towards Ontario.
Afternoon Noon to 6 PM 28% of PDX to ONT departures
Early morning Midnight to 6 AM 24% of PDX to ONT departures
Morning 6 AM to noon 24% of PDX to ONT departures
Evening 6 PM to midnight 24% of PDX to ONT departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Portland to Ontario
See how many times per day planes take to the skies headed from Portland to Ontario.
Sunday
4 daily flights
Monday
3 daily flights
Tuesday
4 daily flights
Wednesday
4 daily flights
Thursday
2 daily flights
Friday
3 daily flights
Saturday
1 daily flight
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