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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Ontario.

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

The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$232 Cheap Flights from Portland, Maine to Ontario in 2026

Find the cheapest flights from Portland, Maine to Ontario

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 4:45 pmPWM Portland-YYZ Toronto Pearson Intl

10h 45m1 stop Washington, D.C. Reagan-National

11:02 am - 11:59 pmYYZ Toronto Pearson Intl-PWM Portland

12h 57m1 stop Washington, D.C. Reagan-National

$477American Airlines

Sat, Sep 26 - Tue, Sep 29

6:00 am - 4:45 pmPWM Portland-YYZ Toronto Pearson Intl

10h 45m1 stop Washington, D.C. Reagan-National

11:02 am - 9:45 pmYYZ Toronto Pearson Intl-PWM Portland

10h 43m1 stop Washington, D.C. Reagan-National

$497American Airlines

Sat, Sep 19 - Sat, Sep 26

6:00 am - 8:55 pmPWM Portland-YYZ Toronto Pearson Intl

14h 55m2 stops Cincinnati Cinci./N. Kentucky Fort Lauderdale

1:30 pm - 9:21 amYYZ Toronto Pearson Intl-PWM Portland

19h 51m1 stop Fort Myers SW Florida Intl

$511Multiple Airlines

Fri, Sep 11 - Sat, Sep 19

4:59 pm - 8:39 amPWM Portland-YUL Montreal Pierre Elliott Trudeau Intl

15h 40m1 stop New York LaGuardia

9:30 am - 9:33 pmYUL Montreal Pierre Elliott Trudeau Intl-PWM Portland

12h 03m1 stop New York LaGuardia

$522Delta

Sat, Aug 29 - Sat, Sep 5

6:10 am - 6:12 pmPWM Portland-YYZ Toronto Pearson Intl

12h 02m1 stop New York LaGuardia

7:55 am - 9:33 pmYYZ Toronto Pearson Intl-PWM Portland

13h 38m1 stop New York LaGuardia

$528Delta

Sat, Aug 29 - Sat, Sep 5

11:50 am - 11:59 pmPWM Portland-YYZ Toronto Pearson Intl

12h 09m2 stops Minneapolis St Paul Edmonton

2:24 pm - 12:02 pmYYZ Toronto Pearson Intl-PWM Portland

21h 38m1 stop Detroit Metropolitan Wayne County

$530WestJet

Thu, Aug 27 - Sun, Aug 30

10:31 am - 9:46 amPWM Portland-YUL Montreal Pierre Elliott Trudeau Intl

23h 15m1 stop New York LaGuardia

10:30 am - 11:45 pmYUL Montreal Pierre Elliott Trudeau Intl-PWM Portland

13h 15m2 stops New York LaGuardia Washington, D.C. Reagan-National

$532American Airlines

Sat, Sep 5 - Fri, Sep 11

9:52 am - 2:39 pmPWM Portland-YYZ Toronto Pearson Intl

4h 47m1 stop New York LaGuardia

11:02 am - 11:45 pmYYZ Toronto Pearson Intl-PWM Portland

12h 43m1 stop Washington, D.C. Reagan-National

$535American Airlines

Tue, Sep 1 - Wed, Sep 9

2:54 pm - 9:46 amPWM Portland-YUL Montreal Pierre Elliott Trudeau Intl

18h 52m2 stops Washington, D.C. Reagan-National New York LaGuardia

10:30 am - 11:45 pmYUL Montreal Pierre Elliott Trudeau Intl-PWM Portland

13h 15m2 stops New York LaGuardia Washington, D.C. Reagan-National

$537American Airlines

Sat, Sep 5 - Fri, Sep 11

12:55 pm - 11:18 amPWM Portland-YYZ Toronto Pearson Intl

22h 23m1 stop Detroit Metropolitan Wayne County

1:30 pm - 9:21 amYYZ Toronto Pearson Intl-PWM Portland

19h 51m1 stop Fort Myers SW Florida Intl

$538Multiple Airlines

Fri, Sep 11 - Sat, Sep 19

Cheap last minute flights

Enter your travel dates to find the best prices.

11:50 am - 11:10 pmPWM Portland-YYZ Toronto Pearson Intl

11h 20m1 stop Minneapolis St Paul

12:09 pm - 4:01 pmYYZ Toronto Pearson Intl-PWM Portland

3h 52m1 stop Detroit Metropolitan Wayne County

$783WestJet

Mon, Aug 10 - Tue, Aug 11

11:50 am - 11:59 pmPWM Portland-YYZ Toronto Pearson Intl

12h 09m2 stops Minneapolis St Paul Edmonton

5:05 pm - 11:30 pmYYZ Toronto Pearson Intl-PWM Portland

6h 25m1 stop New York LaGuardia

$794WestJet

Mon, Aug 10 - Tue, Aug 11

1:12 pm - 6:09 pmPWM Portland-YYZ Toronto Pearson Intl

4h 57m1 stop New York LaGuardia

9:45 am - 4:01 pmYYZ Toronto Pearson Intl-PWM Portland

6h 16m1 stop Detroit Metropolitan Wayne County

$807WestJet

Thu, Aug 6 - Sat, Aug 8

5:50 am - 11:43 amPWM Portland-YYZ Toronto Pearson Intl

5h 53m1 stop Newark

8:50 am - 9:23 pmYYZ Toronto Pearson Intl-PWM Portland

12h 33m1 stop Chicago O'Hare Intl

$824United Airlines

Sun, Aug 9 - Sun, Aug 16

11:50 am - 1:05 amPWM Portland-YYZ Toronto Pearson Intl

13h 15m2 stops Minneapolis St Paul Calgary

6:00 am - 10:21 amYYZ Toronto Pearson Intl-PWM Portland

4h 21m1 stop New York LaGuardia

$825WestJet

Mon, Aug 10 - Tue, Aug 11

11:50 am - 11:10 pmPWM Portland-YYZ Toronto Pearson Intl

11h 20m1 stop Minneapolis St Paul

9:45 am - 4:01 pmYYZ Toronto Pearson Intl-PWM Portland

6h 16m1 stop Detroit Metropolitan Wayne County

$828WestJet

Sat, Aug 8 - Thu, Aug 13

11:50 am - 11:10 pmPWM Portland-YYZ Toronto Pearson Intl

11h 20m1 stop Minneapolis St Paul

6:00 am - 10:21 amYYZ Toronto Pearson Intl-PWM Portland

4h 21m1 stop New York LaGuardia

$829WestJet

Mon, Aug 10 - Tue, Aug 11

1:30 pm - 11:00 pmPWM Portland-YYZ Toronto Pearson Intl

9h 30m1 stop New York LaGuardia

7:29 am - 3:07 pmYYZ Toronto Pearson Intl-PWM Portland

7h 38m1 stop New York LaGuardia

$830American Airlines

Thu, Aug 6 - Sat, Aug 8

5:30 pm - 11:41 pmPWM Portland-YYZ Toronto Pearson Intl

6h 11m1 stop New York LaGuardia

10:00 am - 3:58 pmYYZ Toronto Pearson Intl-PWM Portland

5h 58m1 stop New York LaGuardia

$831WestJet

Thu, Aug 6 - Sat, Aug 8

5:15 am - 7:02 pmPWM Portland-YYZ Toronto Pearson Intl

13h 47m1 stop Washington, D.C. Dulles Intl

7:43 pm - 11:59 pmYYZ Toronto Pearson Intl-PWM Portland

4h 16m1 stop Washington, D.C. Dulles Intl

$836United Airlines

Sat, Aug 8 - Thu, Aug 13

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Delta flights from Portland, Maine to Region of Ontario

Our best Delta deals on Portland, Maine to Region of Ontario flight tickets

Delta

Aug 29

PWM4:59 pmPortland

15h 40m

1 stop

YUL8:39 amMontreal Pierre Elliott Trudeau Intl

Sep 5

YUL9:30 amMontreal Pierre Elliott Trudeau Intl

12h 03m

1 stop

PWM9:33 pmPortland

$522

Delta

Aug 29

PWM6:10 amPortland

12h 02m

1 stop

YYZ6:12 pmToronto Pearson Intl

Sep 5

YYZ7:55 amToronto Pearson Intl

13h 38m

1 stop

PWM9:33 pmPortland

$528

Delta

Aug 29

PWM6:10 amPortland

12h 02m

1 stop

YYZ6:12 pmToronto Pearson Intl

Sep 8

YYZ6:10 amToronto Pearson Intl

9h 29m

1 stop

PWM3:39 pmPortland

$545

WestJet flights from Portland, Maine to Region of Ontario

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

WestJet

Aug 27

PWM11:50 amPortland

12h 09m

2 stops

YYZ11:59 pmToronto Pearson Intl

Aug 30

YYZ2:24 pmToronto Pearson Intl

21h 38m

1 stop

PWM12:02 pmPortland

$530

WestJet

Oct 9

PWM6:28 amPortland

23h 17m

2 stops

YYZ5:45 amToronto Pearson Intl

Oct 12

YYZ6:00 amToronto Pearson Intl

31h 12m

2 stops

PWM1:12 pmPortland

$584

WestJet

Aug 21

PWM12:47 pmPortland

4h 37m

1 stop

YYZ5:24 pmToronto Pearson Intl

Aug 24

YYZ9:45 amToronto Pearson Intl

6h 16m

1 stop

PWM4:01 pmPortland

$596

momondo Fare Finder

Use the filters below to find and compare flights from Portland, Maine to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandToronto

PWM Portland - YYZ Toronto Pearson Intl

PWMYYZ

Portland

Sat 9/26

6:00 am-4:45 pm

1 stop10h 45m

Toronto Pearson Intl

Tue 9/29

11:02 am-11:59 pm

1 stop12h 57m

$477

PortlandToronto

PWM Portland - YYZ Toronto Pearson Intl

PWMYYZ

Portland

Sat 9/19

6:00 am-4:45 pm

1 stop10h 45m

Toronto Pearson Intl

Sat 9/26

11:02 am-9:45 pm

1 stop10h 43m

$497

PortlandToronto

PWM Portland - YYZ Toronto Pearson Intl

PWMYYZ

Portland

Fri 9/11

6:00 am-8:55 pm

2 stops14h 55m

Toronto Pearson Intl

Sat 9/19

1:30 pm-9:21 am

1 stop19h 51m

$511

PortlandMontreal

PWM Portland - YUL Montreal Pierre Elliott Trudeau Intl

PWMYUL

Portland

Sat 8/29

4:59 pm-8:39 am

1 stop15h 40m

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

9:30 am-9:33 pm

1 stop12h 03m

$522

PortlandToronto

PWM Portland - YYZ Toronto Pearson Intl

PWMYYZ

Portland

Sat 8/29

6:10 am-6:12 pm

1 stop12h 02m

Toronto Pearson Intl

Sat 9/5

7:55 am-9:33 pm

1 stop13h 38m

$528

PortlandToronto

PWM Portland - YYZ Toronto Pearson Intl

PWMYYZ

Portland

Thu 8/27

11:50 am-11:59 pm

2 stops12h 09m

Toronto Pearson Intl

Sun 8/30

2:24 pm-12:02 pm

1 stop21h 38m

$530

PortlandMontreal

PWM Portland - YUL Montreal Pierre Elliott Trudeau Intl

PWMYUL

Portland

Sat 9/5

10:31 am-9:46 am

1 stop23h 15m

Montreal Pierre Elliott Trudeau Intl

Fri 9/11

10:30 am-11:45 pm

2 stops13h 15m

$532

Quickest round-trip

PortlandToronto

PWM Portland - YYZ Toronto Pearson Intl

PWMYYZ

Portland

Tue 9/1

9:52 am-2:39 pm

1 stop4h 47m

Toronto Pearson Intl

Wed 9/9

11:02 am-11:45 pm

1 stop12h 43m

$535

PortlandMontreal

PWM Portland - YUL Montreal Pierre Elliott Trudeau Intl

PWMYUL

Portland

Sat 9/5

2:54 pm-9:46 am

2 stops18h 52m

Montreal Pierre Elliott Trudeau Intl

Fri 9/11

10:30 am-11:45 pm

2 stops13h 15m

$537

PortlandToronto

PWM Portland - YYZ Toronto Pearson Intl

PWMYYZ

Portland

Fri 9/11

12:55 pm-11:18 am

1 stop22h 23m

Toronto Pearson Intl

Sat 9/19

1:30 pm-9:21 am

1 stop19h 51m

$538

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, Maine 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

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

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

What airlines fly to Region of Ontario?

Porter Airlines, Air Canada and United Airlines are the top three most popular airlines that fly to Region of Ontario from Portland, Maine according to our data. Porter Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 6 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

Cheap Portland, Maine to Region of Ontario flight deals and tips

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

Fastest flight time	4h 19m
Direct flights	Sat
Airports in Region of Ontario	125 airports

The fastest flight from Portland, Maine to Region of Ontario takes 4h 19m

Direct flights go from Portland, Maine to Region of Ontario on Saturday. There are no airlines offering direct flights.

There are 125 airports in Region of Ontario. From Portland, Maine there are direct flights to Toronto Pearson Intl (YYZ).

Search flight deals

Frequently asked questions about flying from Portland, Maine 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 old do you have to be to fly from Portland Airport to Ontario?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

It is quick and easy to find Portland to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.

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

Yes. momondo enables you to select and highlight flights to Ontario from Portland with this policy.

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

Once all potential Portland to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from Portland and alert you when they change.