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

As of August 2025, there are 5 flights per day flying from Ontario to Portland. The most common time of day flights depart is 7:00AM, with 61% of flights taking off at noon.

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

The number of flights available between Ontario and Portland is 37 per week as of August 2025. The most frequent departure day is Mon, with 19% of weekly flights leaving on this day.

What is the cheapest airline that flies from Ontario to Portland?

Frontier, Delta, and Alaska Airlines are the most popular carriers operating from Ontario to Portland

What airlines fly to Portland?

Alaska Airlines, Frontier and Delta are the top three most popular airlines that fly to Portland from Ontario according to our data. Alaska Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 8 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Portland Airport?

Prices for flights from Ontario Airport to Portland Airport are updated daily.

How many operators does momondo search for flights from Ontario Airport to Portland Airport?

As of August 2025, there are 7 operators available to choose from for flights from Ontario Airport to Portland Airport.

How old do you have to be to fly from Ontario Airport to Portland Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Portland Airport.

What documentation or ID do you need to fly to Portland Airport?

The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$48 Cheap Flights from Ontario to Portland in 2025

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Find the cheapest flights from Ontario to Portland

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

8:07 am - 10:33 amONT-PDX

2h 26mnonstop

7:17 pm - 9:38 pmPDX-ONT

2h 21mnonstop

$108Frontier

Find Deal

Fri, Sep 12 - Sun, Sep 14

8:07 am - 10:33 amONT-PDX

2h 26mnonstop

7:17 pm - 9:38 pmPDX-ONT

2h 21mnonstop

$109Frontier

Find Deal

Fri, Sep 12 - Sun, Sep 14

6:00 am - 6:27 pmONT-PDX

12h 27m1 stop

7:17 pm - 9:38 pmPDX-ONT

2h 21mnonstop

$110Frontier

Find Deal

Fri, Sep 5 - Mon, Sep 8

8:07 am - 10:33 amONT-PDX

2h 26mnonstop

7:17 pm - 9:38 pmPDX-ONT

2h 21mnonstop

$111Frontier

Find Deal

Fri, Sep 12 - Mon, Sep 22

8:59 pm - 12:12 amONT-PDX

27h 13m1 stop

7:17 pm - 9:38 pmPDX-ONT

2h 21mnonstop

$112Frontier

Find Deal

Sat, Sep 13 - Mon, Sep 15

6:00 am - 6:32 pmONT-PDX

12h 32m1 stop

7:17 pm - 9:38 pmPDX-ONT

2h 21mnonstop

$113Frontier

Find Deal

Thu, Sep 4 - Mon, Sep 8

8:59 pm - 10:34 pmONT-PDX

25h 35m1 stop

7:17 pm - 9:38 pmPDX-ONT

2h 21mnonstop

$115Frontier

Find Deal

Fri, Sep 12 - Sun, Sep 14

7:10 am - 9:29 amONT-PDX

2h 19mnonstop

7:17 pm - 9:38 pmPDX-ONT

2h 21mnonstop

$156

Find Deal

Fri, Sep 26 - Sun, Sep 28

11:48 am - 4:45 pmONT-PDX

4h 57m1 stop

7:15 pm - 11:39 pmPDX-ONT

4h 24m1 stop

$157Delta

Find Deal

Sat, Oct 11 - Tue, Oct 14

1:10 pm - 7:23 pmONT-PDX

6h 13m1 stop

5:05 am - 12:01 pmPDX-ONT

6h 56m1 stop

$159American Airlines

Find Deal

Sat, Oct 4 - Sat, Oct 18

Delta flights from Ontario to Portland

Our best Delta deals on Ontario to Portland flight tickets

Delta

Oct 11

ONT11:48 amOntario

4h 57m

1 stop

PDX4:45 pmPortland

Oct 14

PDX7:15 pmPortland

4h 24m

1 stop

ONT11:39 pmOntario

$157

Find similar

Delta

Sep 3

ONT11:40 amOntario

5h 19m

1 stop

PDX4:59 pmPortland

Sep 9

PDX5:45 pmPortland

4h 57m

1 stop

ONT10:42 pmOntario

$267

Find similar

Frontier flights from Ontario to Portland

Our best Frontier deals on Ontario to Portland flight tickets

Frontier

Sep 12

ONT8:07 amOntario

2h 26m

PDX10:33 amPortland

Sep 14

PDX7:17 pmPortland

2h 21m

ONT9:38 pmOntario

$108

Find similar

Frontier

Sep 12

ONT8:07 amOntario

2h 26m

PDX10:33 amPortland

Sep 14

PDX7:17 pmPortland

2h 21m

ONT9:38 pmOntario

$109

Find similar

Frontier

Sep 5

ONT6:00 amOntario

12h 27m

1 stop

PDX6:27 pmPortland

Sep 8

PDX7:17 pmPortland

2h 21m

ONT9:38 pmOntario

$110

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Fly from

Fly to

Route

Depart

Return

Price

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 9/12

8:07 am-10:33 am

Nonstop2h 26m

Portland

Sun 9/14

7:17 pm-9:38 pm

Nonstop2h 21m

$108

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 9/12

8:07 am-10:33 am

Nonstop2h 26m

Portland

Sun 9/14

7:17 pm-9:38 pm

Nonstop2h 21m

$109

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 9/5

6:00 am-6:27 pm

1 stop12h 27m

Portland

Mon 9/8

7:17 pm-9:38 pm

Nonstop2h 21m

$110

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 9/12

8:07 am-10:33 am

Nonstop2h 26m

Portland

Mon 9/22

7:17 pm-9:38 pm

Nonstop2h 21m

$111

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Sat 9/13

8:59 pm-12:12 am

1 stop27h 13m

Portland

Mon 9/15

7:17 pm-9:38 pm

Nonstop2h 21m

$112

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Thu 9/4

6:00 am-6:32 pm

1 stop12h 32m

Portland

Mon 9/8

7:17 pm-9:38 pm

Nonstop2h 21m

$113

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 9/12

8:59 pm-10:34 pm

1 stop25h 35m

Portland

Sun 9/14

7:17 pm-9:38 pm

Nonstop2h 21m

$115

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 9/26

7:10 am-9:29 am

Nonstop2h 19m

Portland

Sun 9/28

7:17 pm-9:38 pm

Nonstop2h 21m

$156

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Sat 10/11

11:48 am-4:45 pm

1 stop4h 57m

Portland

Tue 10/14

7:15 pm-11:39 pm

1 stop4h 24m

$157

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Sat 10/4

1:10 pm-7:23 pm

1 stop6h 13m

Portland

Sat 10/18

5:05 am-12:01 pm

1 stop6h 56m

$159

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How to get the cheapest flight ticket from Ontario to Portland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Portland?

The cheapest month to fly to Portland from Ontario is in October. Flight prices, which tend to average around $157, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in October, then you should wait until September to fly from Ontario, when ticket prices are also cheap, with an average price of $169.

What is the cheapest day to depart on your flight to Portland?

The cheapest day to depart on your flight to Portland is on a Saturday when prices can be found for as low as $203. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Sunday, with ticket prices averaging around $235.

What is the cheapest time of day to depart on your flight to Portland?

The cheapest time of day to fly to Portland is at noon when flights can be purchased for as low as $204. In the evening is when there is more demand to fly to Portland, so prices are often more expensive at around $239 per ticket.

What is the cheapest Ontario to Portland flight route?

Fly from Ontario to Portland for the best Ontario - Portland flight prices

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

You are more likely to see cheaper flights to Portland from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $202 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from Ontario for as low as $151 on momondo.

What cabin class options are available on Ontario to Portland flights?

There are 4 cabin classes available to choose from on Ontario to Portland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Ontario to Portland flight prices changed over time?

As of August 2025, prices for Ontario to Portland flights are approximately 78% cheaper when compared to flights at the same time last year.

When to book flights from Ontario to Portland

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Portland according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Portland (ONT to PDX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Portland

Best Price Found	$113
Fastest flight time	2h 18m
Direct flights	Every day
Airports in Portland	1 airport

The best one-way flight to Portland from Ontario in the past 72 hours is $113. The best round-trip flight deal from Ontario to Portland found on momondo in the last 72 hours is $142.

The fastest flight from Ontario to Portland takes 2h 18m

Direct flights go from Ontario to Portland every day.

There is 1 airport near Portland: Portland (PDX)

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How far is Ontario to Portland by plane?
Ontario and Portland are 834.5 mi apart from one another. A reasonable flight in good conditions will take 2h 19m.
When did momondo last update prices for flights from Ontario Airport to Portland Airport?
Prices for flights from Ontario Airport to Portland Airport are updated daily.
How many operators does momondo search for flights from Ontario Airport to Portland Airport?
As of August 2025, there are 7 operators available to choose from for flights from Ontario Airport to Portland Airport.
How old do you have to be to fly from Ontario Airport to Portland Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Ontario to Portland?
momondo data reveals that the most frequently booked plane model on the route from Ontario to Portland is Embraer 175, representing 23.46% of all bookings. The subsequent popular models are Boeing 737-900 Passenger/BBJ3 (winglets) at 13.13%, Airbus A321-100/200 at 12.05%, and Boeing 737 MAX 8 at 11.71%.
What is the most popular airline from Ontario to Portland?
Based on momondo bookings for flights between Ontario and Portland, the leading airline is Frontier, making up 47% of the total bookings. Other popular airlines include Alaska Airlines with 42%, Hawaiian Airlines with 6%, and Southwest with 3%.

Best airlines flying from Ontario to Portland

Compare and see reviews for airlines that fly from Ontario to Portland with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $45	Free Cancellation	Rating 6.3 8,028 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $69	Free Cancellation	Rating 5.8 3,201 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $98	Free Cancellation	Rating 7.8 2,679 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $137	Free Cancellation	Rating 7.9 7,981 reviews	Search Delta flights
United Airlines	PriceFrom $153	Free Cancellation	Rating 7.4 8,940 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $156	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $156	Free Cancellation	Rating 8.0 4,243 reviews	Search Southwest flights

Alaska Airlines Flights From Ontario to Portland
Alaska Airlines operates around 18 flights from Ontario to Portland every week. The average price of these flights found in the last 72 hours has been $268, but momondo users have found Alaska Airlines deals from Ontario to Portland from as low as $156 round-trip. Alaska Airlines has been scored 8.0/10 in 10,000 reviews.
Hawaiian Airlines Flights From Ontario to Portland
Hawaiian Airlines is also a popular choice for this route. Hawaiian Airlines flight deals for Ontario to Portland start from as low as $98 round-trip, depending on your selected dates, with average Hawaiian Airlines deals seen on momondo around $246. Hawaiian Airlines operates 18 flights to Portland from Ontario in an average week. Users have rated it 7.8/10 across 2,679 reviews.

Lincoln City

Seaside

Cannon Beach

Vancouver

Salem

Astoria

Long Beach

Depoe Bay

Beaverton

Rockaway Beach

Hillsboro

Hood River

Gresham

McMinnville

Longview

Tigard

The Dalles

Pacific City

Manzanita

Tillamook

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Portland?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Portland. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Portland with flexible booking policies on momondo?

Yes. All flights to Portland from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ontario to Portland?

Once you have performed a search for Ontario to Portland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Portland right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Portland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portland and let you know when they change.

An easier way to manage your Portland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Ontario to Portland from $72

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Portland departing on 9/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Ontario to Portland

Our best Delta deals on Ontario to Portland flight tickets

Frontier flights from Ontario to Portland

Our best Frontier deals on Ontario to Portland flight tickets

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How to get the cheapest flight ticket from Ontario to Portland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portland?

What is the cheapest day to depart on your flight to Portland?

The cheapest day to depart on your flight to Portland is on a Saturday when prices can be found for as low as $203. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Sunday, with ticket prices averaging around $235.

What is the cheapest time of day to depart on your flight to Portland?

The cheapest time of day to fly to Portland is at noon when flights can be purchased for as low as $204. In the evening is when there is more demand to fly to Portland, so prices are often more expensive at around $239 per ticket.

What is the cheapest Ontario to Portland flight route?

Fly from Ontario to Portland for the best Ontario - Portland flight prices

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

What cabin class options are available on Ontario to Portland flights?

There are 4 cabin classes available to choose from on Ontario to Portland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Ontario to Portland flight prices changed over time?

As of August 2025, prices for Ontario to Portland flights are approximately 78% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Ontario to Portland?

Frontier, Delta, and Alaska Airlines are the most popular carriers operating from Ontario to Portland

What airlines fly to Portland?

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

As of August 2025, there are 5 flights per day flying from Ontario to Portland. The most common time of day flights depart is 7:00AM, with 61% of flights taking off at noon.

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

The number of flights available between Ontario and Portland is 37 per week as of August 2025. The most frequent departure day is Mon, with 19% of weekly flights leaving on this day.

When to book flights from Ontario to Portland

Cheap Ontario to Portland (ONT to PDX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Portland

Best Price Found

Fastest flight time

Direct flights

Airports in Portland

How far is Ontario to Portland by plane?

When did momondo last update prices for flights from Ontario Airport to Portland Airport?

How many operators does momondo search for flights from Ontario Airport to Portland Airport?

How old do you have to be to fly from Ontario Airport to Portland Airport?

What documentation or ID do you need to fly to Portland Airport?

What is the most popular plane model from Ontario to Portland?

What is the most popular airline from Ontario to Portland?

Best airlines flying from Ontario to Portland

Compare and see reviews for airlines that fly from Ontario to Portland with momondo

Alaska Airlines Flights From Ontario to Portland

Hawaiian Airlines Flights From Ontario to Portland

Traveling to a place near Portland?

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Portland?

Can I find flights from Ontario to Portland with flexible booking policies on momondo?

How can momondo help me find flights from Ontario to Portland?

I’m not ready to book a flight from Ontario to Portland right now. Can momondo alert me if prices change?

An easier way to manage your Portland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Oregon