Cheap flights from Ontario to Portland (ONT - PDX) from $44

This is the cheapest one-way flight price, found on 9/27. Prices may vary by date and flight preferences.
ONT — PDX
oct. 3 — oct. 101

The best prices from Ontario to Portland are usually found in January or February, booked 31 days in advance, depart on a Wednesday or Monday and return on a Tuesday

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

All the information you need to plan the best ONT to PDX flight in 2023: compare Ontario to Portland flight prices with the expected peak season, weather and rainfall in Portland.

Popular in

June

Cheapest in

January

Round-trip from

$278

One-way from

$68
High demand for flights, 32% potential price rise
Best time to find cheap flights, 34% potential price drop
From Ontario to Portland
One-way flight from Ontario to Portland

ONT - PDX

Price

$278 - $497

PDX

Temperature

41 - 69.8 °F

PDX

Rainfall

0.7 - 5.6 inches

What is the cheapest day to fly round-trip from Ontario to Portland?

Flights from Ontario to Portland are found to be more expensive on Monday. 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 Portland.

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

Find a great deal and save up to 65% by booking at least 33 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Portland within the next two weeks, with the cheapest ticket starting at $358.

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

Our data shows that January tends to be the cheapest month to fly to Portland from Ontario. Users have commonly found prices around $294 for the month, but tickets can be as low as $142. Due to multiple factors, prepare for potentially higher prices in June.

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

It’s typically best to fly out from Ontario to Portland in the morning. Doing so could potentially save you 17% on the flight price compared to flying in the afternoon, which is usually more expensive.

Cheap Frontier flights from Ontario to Portland

Check out some of the cheapest Frontier flights we've come across from Ontario to Portland. It's recommended that users confirm their flight details before booking.

Cheap Alaska Airlines flights from Ontario to Portland

Some of the lowest-priced Alaska Airlines flights we've found at this time heading from Ontario to Portland. Ensure the flight price, dates, time, and airline match your criteria before you book.

Cheap Ontario to Portland flights in September & October 2023

The best prices found for ONT to PDX flights for September, October
These are some of the best deals we've found on flights to Portland in 2023 at this time. Check back soon for alternative fares.

Ontario to Portland 2023 flight deals

Cheap flights to Portland from Ontario found for this year
These are some of the best deals we've found on flights to Portland in 2023 at this time. Check back soon for alternative fares.

Non-stop flights to Portland from Ontario

Save time with Ontario to Portland direct flight deals
If you're seeking options on non-stop flights from Ontario to Portland, check out these fares. If you're looking for other options for flights from Ontario to Portland, make sure to update the search form at the top of page.

Ontario to Portland flights leaving soon

Late deals on return flights to Portland from Ontario, departing today and this week
Users seeking a last-minute flight from Ontario to Portland should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.

One-way flights to Portland from Ontario

The cheapest one-way flights from Ontario to Portland
Take a look at some of the best available options we've come across on one-way flights from Ontario to Portland. Those seeking round-trip flights from Ontario to Portland should utilize the search form at the the top of the page.

Find flights from Ontario to Portland within your budget

Use the slider to find flights from Ontario to Portland that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$78 - $207

Route

Depart

Return

Price

OntarioPortland

ONT - PDX

ONTPDX

Ontario

vie. 10/27

1 stop11h 20m

Portland

dom. 10/29

1 stop21h 03m

OntarioPortland

ONT - PDX

ONTPDX

Ontario

lun. 10/16

1 stop22h 10m

Portland

mar. 10/17

1 stop14h 34m

OntarioPortland

ONT - PDX

ONTPDX

Ontario

vie. 10/27

1 stop11h 20m

Portland

mié. 11/1

1 stop27h 55m

OntarioPortland

ONT - PDX

ONTPDX

Ontario

mié. 10/25

1 stop8h 43m

Portland

lun. 10/30

1 stop25h 25m

OntarioPortland

ONT - PDX

ONTPDX

Ontario

mié. 11/1

1 stop12h 21m

Portland

sáb. 11/4

1 stop12h 29m

OntarioPortland

ONT - PDX

ONTPDX

Ontario

mar. 10/10

1 stop13h 27m

Portland

mié. 10/18

1 stop6h 47m

OntarioPortland

ONT - PDX

ONTPDX

Ontario

sáb. 10/28

Nonstop2h 22m

Portland

sáb. 11/4

1 stop8h 51m

OntarioPortland

ONT - PDX

ONTPDX

Ontario

mié. 10/25

Nonstop2h 22m

Portland

mar. 10/31

Nonstop2h 10m

OntarioPortland

ONT - PDX

ONTPDX

Ontario

sáb. 12/2

1 stop6h 26m

Portland

jue. 12/7

1 stop5h 00m

Flights are sorted by cheapest first

Deals found on 9/27

Reviews of airlines servicing Portland

To help decide which airline to fly from Ontario to Portland, see what other customers have to say about Frontier, Alaska Airlines and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Overall

8.1

Comfort

8.0

Boarding

8.3

Crew

8.6

Entertainment

7.2

Reviews

1 / 10

Flight departed on time and landed a little early. Friendly staff, and they did two passes with drinks and complimentary snacks.

Alaska Airlines
8.1
Very good
1,394 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Overall

8.1

Comfort

8.0

Boarding

8.3

Crew

8.6

Entertainment

7.2

Reviews

1 / 10

Flight departed on time and landed a little early. Friendly staff, and they did two passes with drinks and complimentary snacks.

Delta
7.9
Good
3,023 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Overall

8.1

Comfort

8.0

Boarding

8.3

Crew

8.6

Entertainment

7.2

Reviews

1 / 10

Flight departed on time and landed a little early. Friendly staff, and they did two passes with drinks and complimentary snacks.

United Airlines
7.4
Good
1,890 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Overall

8.1

Comfort

8.0

Boarding

8.3

Crew

8.6

Entertainment

7.2

Reviews

1 / 10

Flight departed on time and landed a little early. Friendly staff, and they did two passes with drinks and complimentary snacks.

American Airlines
7.2
Good
2,635 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Overall

8.1

Comfort

8.0

Boarding

8.3

Crew

8.6

Entertainment

7.2

Reviews

1 / 10

Flight departed on time and landed a little early. Friendly staff, and they did two passes with drinks and complimentary snacks.

WestJet
7.2
Good
918 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Overall

8.1

Comfort

8.0

Boarding

8.3

Crew

8.6

Entertainment

7.2

Reviews

1 / 10

Flight departed on time and landed a little early. Friendly staff, and they did two passes with drinks and complimentary snacks.

Related info for your journey

Useful info, stats and facts about Ontario to Portland flights.

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

If you wish to fly to Portland from Ontario, then you need to book flights from Ontario to Portland. There is 1 flight from Ontario (ONT) to Portland (PDX) per day to choose from. Flights to Portland from Ontario are available from 7 different airlines, which means you should have some options if you want to compare airfare deals. 2h 15m is how long a nonstop flight from Ontario to Portland typically takes.

Can I find flights from Ontario to Portland for under $100 on Cheapflights?

Yes, there are multiple flights from Ontario to Portland for under $100. The cheapest flight booked recently is on Frontier for just $78, but on average you can expect to pay $94.

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

Cheapflights has at least 20 direct flights from Ontario to Portland under $200. A good price for a nonstop flight from Ontario to Portland is less than $218.

Are there last-minute flights available from Ontario to Portland for under $100?

There are currently 20+ open flights from Ontario to Portland within the next 7 days for less than $100.

What days are nonstop flights available from Ontario to Portland?

Days when nonstop flights are available for this flight are: Sunday, Monday, Friday, Saturday.

How popular is this Ontario to Portland flight route?

How many flights depart from Ontario to Portland on average per day?

6 flight departures from Ontario to Portland per day on average.
Morning (6am - Noon) - 17% of flight departures
Afternoon (Noon - 6pm) - 67% of flight departures
Evening (6pm - Midnight) - 17% of flight departures

How long is the flight from Ontario to Portland?

For as low as $78, Frontier can have you in Portland from Ontario in 11h 20m. There are 843 mi between Ontario and Portland.

What is the cheapest airline to fly from Ontario to Portland round-trip?

Cheapflights users have booked flights from Ontario to Portland round-trip from $78. Users have found that Frontier is 73% cheaper than the other options available to this destination.

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

One-way options have recently been found by users for as low as $44 on Frontier. Other airlines that offer cheap prices include Alaska Airlines from $69 and American Airlines from $88 one-way.

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

What are the most reliable airlines from Ontario to Portland?

Before booking your flight to Portland from Ontario, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (100%), Horizon Air (100%), British Airways( 100%).

What are the cheapest flights from Ontario to Portland?

On average you can expect to pay $233 for a flight from Ontario to Portland. The cheapest flight overall is $79 while the most popular route, (Ontario - Portland) is currently priced at $78.

What does ONT to PDX mean?

ONT stands for Ontario Airport, while PDX stands for Portland Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

Alternative routes for Ontario to Portland

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

Top 6 airlines flying from Ontario to Portland

The chart below displays the airlines Cheapflights users traveling from Ontario to Portland choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$83Average$182FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Alaska AirlinesCheapest$99Average$268FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Spirit AirlinesCheapest$107Average$237FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
United AirlinesCheapest$176Average$357FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$184Average$347FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$198Average$336FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Hourly flight availability from Ontario to Portland

See what time of day planes typically take off from Ontario to Portland
0%of flight departuresEarly morningMidnight to 6 am
100%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Ontario to Portland

See how many times per day planes take to the skies headed from Ontario to Portland
Sunday1daily flight
Monday2daily flights
Tuesday1daily flight
Wednesday1daily flight
Thursday2daily flights
Friday2daily flights
Saturday1daily flight

Fly with Cheapflights

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How does Cheapflights help users find flights from Ontario to Portland?

Deals for Ontario to Portland flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Portland?

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to Portland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ontario to Portland with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to Portland flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ontario to Portland become cheaper?

Not ready to book yet? You can track prices for flights from Ontario to Portland on Cheapflights with our Price Alert feature and get notified when better prices are available.

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