What airlines fly to Region of Ontario?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Region of Ontario from Portland, Maine according to our data. Air Canada is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 5 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

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

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.

$226 Cheap Flights from Portland to Ontario in 2025/26

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Find the cheapest flights from Portland, Maine to Ontario

Round-trip

One-way

Last minute

Cheap round-trip flights

6:29 pm - 2:54 pmPWM-YYZ

20h 25m1 stop

7:35 am - 10:41 amYYZ-PWM

27h 06m2 stops

$321Multiple Airlines

Find Deal

Tue, Nov 4 - Tue, Nov 11

6:29 pm - 2:54 pmPWM-YYZ

20h 25m1 stop

7:35 am - 5:49 pmYYZ-PWM

10h 14m1 stop

$356Multiple Airlines

Find Deal

Tue, Nov 4 - Tue, Nov 11

8:50 am - 6:35 pmPWM-YYZ

9h 45m1 stop

7:15 pm - 12:08 pmYYZ-PWM

16h 53m1 stop

$392American Airlines

Find Deal

Sat, Oct 25 - Fri, Oct 31

8:50 am - 6:35 pmPWM-YYZ

9h 45m1 stop

10:57 am - 9:47 pmYYZ-PWM

10h 50m1 stop

$421American Airlines

Find Deal

Sat, Nov 1 - Sat, Nov 8

6:01 am - 1:35 pmPWM-YUL

7h 34m1 stop

2:29 pm - 11:19 pmYUL-PWM

8h 50m1 stop

$430Delta

Find Deal

Tue, Nov 4 - Tue, Nov 11

5:42 am - 1:35 pmPWM-YUL

7h 53m1 stop

2:25 pm - 11:09 pmYUL-PWM

8h 44m1 stop

$461Delta

Find Deal

Wed, Oct 29 - Wed, Nov 5

4:51 pm - 12:02 pmPWM-YUL

19h 11m2 stops

5:30 pm - 10:04 amYUL-PWM

16h 34m2 stops

$572United Airlines

Find Deal

Tue, Nov 4 - Tue, Nov 11

6:14 am - 6:33 pmPWM-YYZ

12h 19m1 stop

9:00 pm - 2:33 pmYYZ-PWM

17h 33m2 stops

$622United Airlines

Find Deal

Tue, Oct 21 - Tue, Oct 21

8:00 am - 3:34 pmPWM-YYZ

7h 34m2 stops

2:15 pm - 11:17 pmYYZ-PWM

9h 02m2 stops

$761Air Canada

Find Deal

Sat, Oct 25 - Fri, Oct 31

8:00 am - 4:54 pmPWM-YYZ

8h 54m2 stops

6:00 pm - 11:20 pmYYZ-PWM

5h 20m1 stop

$948Air Canada

Find Deal

Fri, Oct 3 - Sun, Oct 5

American Airlines flights from Portland, Maine to Region of Ontario

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

American Airlines

Oct 25

PWM8:50 amPortland

9h 45m

1 stop

YYZ6:35 pmToronto Pearson Intl

Oct 31

YYZ7:15 pmToronto Pearson Intl

16h 53m

1 stop

PWM12:08 pmPortland

$392

Find similar

American Airlines

Nov 1

PWM8:50 amPortland

9h 45m

1 stop

YYZ6:35 pmToronto Pearson Intl

Nov 8

YYZ10:57 amToronto Pearson Intl

10h 50m

1 stop

PWM9:47 pmPortland

$421

Find similar

American Airlines

Nov 1

PWM8:50 amPortland

9h 45m

1 stop

YYZ6:35 pmToronto Pearson Intl

Nov 8

YYZ12:34 pmToronto Pearson Intl

9h 13m

2 stops

PWM9:47 pmPortland

$431

Find similar

WestJet flights from Portland, Maine to Region of Ontario

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

WestJet

Nov 1

PWM4:48 pmPortland

6h 07m

1 stop

YYZ10:55 pmToronto Pearson Intl

Nov 2

YYZ5:04 amToronto Pearson Intl

4h 45m

1 stop

PWM9:49 amPortland

$825

Find similar

WestJet

Oct 2

PWM12:40 pmPortland

10h 49m

1 stop

YUL11:29 pmMontreal Pierre Elliott Trudeau Intl

Oct 5

YUL7:00 amMontreal Pierre Elliott Trudeau Intl

16h 03m

1 stop

PWM11:03 pmPortland

$951

Find similar

WestJet

Oct 2

PWM1:40 pmPortland

10h 47m

2 stops

YUL12:27 amMontreal Pierre Elliott Trudeau Intl

Oct 5

YUL7:00 amMontreal Pierre Elliott Trudeau Intl

16h 03m

1 stop

PWM11:03 pmPortland

$963

Find similar

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

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 11/4

6:29 pm-2:54 pm

1 stop20h 25m

Toronto Pearson Intl

Tue 11/11

7:35 am-10:41 am

2 stops27h 06m

$321

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 11/4

6:29 pm-2:54 pm

1 stop20h 25m

Toronto Pearson Intl

Tue 11/11

7:35 am-5:49 pm

1 stop10h 14m

$356

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 10/25

8:50 am-6:35 pm

1 stop9h 45m

Toronto Pearson Intl

Fri 10/31

7:15 pm-12:08 pm

1 stop16h 53m

$392

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 11/1

8:50 am-6:35 pm

1 stop9h 45m

Toronto Pearson Intl

Sat 11/8

10:57 am-9:47 pm

1 stop10h 50m

$421

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Tue 11/4

6:01 am-1:35 pm

1 stop7h 34m

Montreal Pierre Elliott Trudeau Intl

Tue 11/11

2:29 pm-11:19 pm

1 stop8h 50m

$430

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Wed 10/29

5:42 am-1:35 pm

1 stop7h 53m

Montreal Pierre Elliott Trudeau Intl

Wed 11/5

2:25 pm-11:09 pm

1 stop8h 44m

$461

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Tue 11/4

4:51 pm-12:02 pm

2 stops19h 11m

Montreal Pierre Elliott Trudeau Intl

Tue 11/11

5:30 pm-10:04 am

2 stops16h 34m

$572

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 10/21

6:14 am-6:33 pm

1 stop12h 19m

Toronto Pearson Intl

Tue 10/21

9:00 pm-2:33 pm

2 stops17h 33m

$622

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 10/25

8:00 am-3:34 pm

2 stops7h 34m

Toronto Pearson Intl

Fri 10/31

2:15 pm-11:17 pm

2 stops9h 02m

$761

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 10/3

8:00 am-4:54 pm

2 stops8h 54m

Toronto Pearson Intl

Sun 10/5

6:00 pm-11:20 pm

1 stop5h 20m

$948

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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

Prices

Airlines

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

The month of March is, on average, the cheapest month to fly to Region of Ontario from Portland, Maine, with most prices found around $360. If you aren’t able to travel during the month of March, then book flights to Region of Ontario from Portland, Maine during January instead. Flights to Region of Ontario in January, while not as cheap as those in March, still average around $398.

What is the cheapest day to depart on your flight to Region of Ontario?

According to our data, Saturday is the cheapest day to fly to Region of Ontario from Portland, Maine. The lowest ticket price found for a Saturday departure recently was $286. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Portland, Maine to Region of Ontario on a Friday will generally be more expensive and average around $591. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Region of Ontario is in the afternoon. momondo users have found flights departing from Portland, Maine to Region of Ontario in the afternoon for as low as $457. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $500.

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

Direct flights	None

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

Search flight deals

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.