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

WestJet, Delta, and United Airlines are the most popular carriers operating from Portland to Ontario

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

Prices for flights from Portland Airport to Ontario are refreshed on a daily basis.

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

The number of operators available for flights from Portland Airport to Ontario is 1 as of April 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Ontario.

What documentation or ID do you need to fly to Ontario?

The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 172 Cheap Flights from Portland to Ontario in 2026

1 adult

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Find the cheapest flights from Portland to Ontario

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:30 p.m. - 1:05 a.m.

PDX

YYZ

7h 35m

1 stop

9:00 a.m. - 1:50 p.m.

YYZ

PDX

7h 50m

1 stop

C$ 383WestJet

Wed, 12 Aug - Tue, 18 Aug

2:30 p.m. - 1:05 a.m.

PDX

YYZ

7h 35m

1 stop

9:00 a.m. - 1:50 p.m.

YYZ

PDX

7h 50m

1 stop

C$ 386WestJet

Wed, 5 Aug - Sun, 9 Aug

2:30 p.m. - 1:05 a.m.

PDX

YYZ

7h 35m

1 stop

9:00 a.m. - 1:50 p.m.

YYZ

PDX

7h 50m

1 stop

C$ 392WestJet

Wed, 6 May - Thu, 21 May

3:30 p.m. - 7:10 a.m.

PDX

YUL

12h 40m

2 stops

8:10 a.m. - 7:06 p.m.

YUL

PDX

13h 56m

2 stops

C$ 482Air Canada

Fri, 11 Sep - Sat, 26 Sep

8:20 a.m. - 7:45 p.m.

PDX

YUL

8h 25m

1 stop

6:35 p.m. - 12:47 a.m.

YUL

PDX

9h 12m

1 stop

C$ 487United Airlines

Wed, 9 Sep - Sun, 13 Sep

11:15 p.m. - 10:40 a.m.

PDX

YUL

8h 25m

1 stop

6:35 p.m. - 12:47 a.m.

YUL

PDX

9h 12m

1 stop

C$ 498United Airlines

Mon, 24 Aug - Tue, 8 Sep

11:58 a.m. - 11:41 p.m.

PDX

YUL

8h 43m

1 stop

12:48 p.m. - 6:49 p.m.

YUL

PDX

9h 01m

1 stop

C$ 522Delta

Wed, 3 Jun - Mon, 8 Jun

10:59 p.m. - 10:06 a.m.

PDX

YTZ

8h 07m

1 stop

12:15 p.m. - 6:05 p.m.

YTZ

PDX

8h 50m

1 stop

C$ 565Air Canada

Mon, 28 Sep - Fri, 2 Oct

5:31 p.m. - 5:35 a.m.

PDX

YOW

33h 04m

2 stops

7:20 a.m. - 1:50 p.m.

YOW

PDX

9h 30m

1 stop

C$ 622Multiple Airlines

Sat, 30 May - Sat, 6 Jun

5:31 p.m. - 5:35 a.m.

PDX

YOW

33h 04m

2 stops

7:20 a.m. - 1:50 p.m.

YOW

PDX

9h 30m

1 stop

C$ 664Multiple Airlines

Mon, 1 Jun - Sat, 6 Jun

WestJet flights from Portland to Region of Ontario

Our best WestJet deals on Portland to Region of Ontario flight tickets

WestJet

12 Aug

PDX2:30 p.m.Portland

7h 35m

1 stop

YYZ1:05 a.m.Toronto Pearson Intl

18 Aug

YYZ9:00 a.m.Toronto Pearson Intl

7h 50m

1 stop

PDX1:50 p.m.Portland

C$ 383

WestJet

5 Aug

PDX2:30 p.m.Portland

7h 35m

1 stop

YYZ1:05 a.m.Toronto Pearson Intl

9 Aug

YYZ9:00 a.m.Toronto Pearson Intl

7h 50m

1 stop

PDX1:50 p.m.Portland

C$ 386

WestJet

6 May

PDX2:30 p.m.Portland

7h 35m

1 stop

YYZ1:05 a.m.Toronto Pearson Intl

21 May

YYZ9:00 a.m.Toronto Pearson Intl

7h 50m

1 stop

PDX1:50 p.m.Portland

C$ 392

Air Canada flights from Portland to Region of Ontario

Our best Air Canada deals on Portland to Region of Ontario flight tickets

Air Canada

3 Jun

PDX3:30 p.m.Portland

12h 21m

2 stops

YYZ6:51 a.m.Toronto Pearson Intl

10 Jun

YYZ9:00 p.m.Toronto Pearson Intl

15h 30m

1 stop

PDX9:30 a.m.Portland

C$ 460

Air Canada

17 Sep

PDX3:30 p.m.Portland

7h 05m

1 stop

YYZ1:35 a.m.Toronto Pearson Intl

20 Sep

YYZ10:25 p.m.Toronto Pearson Intl

14h 06m

1 stop

PDX9:31 a.m.Portland

C$ 480

Air Canada

11 Sep

PDX3:30 p.m.Portland

12h 40m

2 stops

YUL7:10 a.m.Montreal Pierre Elliott Trudeau Intl

26 Sep

YUL8:10 a.m.Montreal Pierre Elliott Trudeau Intl

13h 56m

2 stops

PDX7:06 p.m.Portland

C$ 482

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Wed 12/8

2:30 p.m.-1:05 a.m.

1 stop7h 35m

Toronto Pearson Intl

Tue 18/8

9:00 a.m.-1:50 p.m.

1 stop7h 50m

C$ 383

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Wed 5/8

2:30 p.m.-1:05 a.m.

1 stop7h 35m

Toronto Pearson Intl

Sun 9/8

9:00 a.m.-1:50 p.m.

1 stop7h 50m

C$ 386

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Wed 6/5

2:30 p.m.-1:05 a.m.

1 stop7h 35m

Toronto Pearson Intl

Thu 21/5

9:00 a.m.-1:50 p.m.

1 stop7h 50m

C$ 392

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Fri 11/9

3:30 p.m.-7:10 a.m.

2 stops12h 40m

Montreal Pierre Elliott Trudeau Intl

Sat 26/9

8:10 a.m.-7:06 p.m.

2 stops13h 56m

C$ 482

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Wed 9/9

8:20 a.m.-7:45 p.m.

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

Sun 13/9

6:35 p.m.-12:47 a.m.

1 stop9h 12m

C$ 487

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Mon 24/8

11:15 p.m.-10:40 a.m.

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

Tue 8/9

6:35 p.m.-12:47 a.m.

1 stop9h 12m

C$ 498

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Wed 3/6

11:58 a.m.-11:41 p.m.

1 stop8h 43m

Montreal Pierre Elliott Trudeau Intl

Mon 8/6

12:48 p.m.-6:49 p.m.

1 stop9h 01m

C$ 522

PortlandToronto

PDX - YTZ

PDXYTZ

Portland

Mon 28/9

10:59 p.m.-10:06 a.m.

1 stop8h 07m

Toronto Island

Fri 2/10

12:15 p.m.-6:05 p.m.

1 stop8h 50m

C$ 565

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 30/5

5:31 p.m.-5:35 a.m.

2 stops33h 04m

Ottawa

Sat 6/6

7:20 a.m.-1:50 p.m.

1 stop9h 30m

C$ 622

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Mon 1/6

5:31 p.m.-5:35 a.m.

2 stops33h 04m

Ottawa

Sat 6/6

7:20 a.m.-1:50 p.m.

1 stop9h 30m

C$ 664

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland to Region of Ontario

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

What is the cheapest month to fly to Region of Ontario?

In general, August is the cheapest month to fly from Portland to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 472. If you are unable to visit Region of Ontario during the month of August, then departing from Portland during the month January is also very affordable. Most momondo users find prices during this month for around C$ 479.

How far in advance should I book a flight to Region of Ontario?

You are more likely to see cheaper flights to Region of Ontario from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 599 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from Portland for as low as C$ 233 on momondo.

Can stopping save me money on Portland to Region of Ontario flights?

You could potentially save up to 29% on your flight if you consider stops on a Portland to Region of Ontario flight.

Cheap Portland to Region of Ontario flight deals and tips

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

Fastest flight time	6h 31m
Direct flights	None

The fastest flight from Portland to Region of Ontario takes 6h 31m

There are no direct flights from Portland to Region of Ontario. There are no popular flight routes from Portland to Region of Ontario.

Search flight deals

Frequently asked questions about flying from Portland to Ontario

When did momondo last update prices for flights from Portland Airport to Ontario?
Prices for flights from Portland Airport to Ontario are refreshed on a daily basis.
How many operators does momondo search for flights from Portland Airport to Ontario?
The number of operators available for flights from Portland Airport to Ontario is 1 as of April 2026.
How old do you have to be to fly from Portland Airport to Ontario?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Portland to Region of Ontario

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

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom C$ 321	Free Cancellation	Rating 7.2 3,322 reviews		Search WestJet flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Ontario. momondo saves you time and could save you money on your trip.

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

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

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

Once you have performed a search for Portland to Ontario 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 Portland to Ontario right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.