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.

$212 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.

6:31 pm - 5:40 pm

PWM

YYZ

23h 09m

1 stop

5:15 pm - 9:08 am

YYZ

PWM

15h 53m

1 stop

$438Multiple Airlines

Wed, Nov 11 - Thu, Nov 19

2:35 pm - 10:51 pm

PWM

YYZ

8h 16m

1 stop

6:00 am - 1:53 pm

YYZ

PWM

7h 53m

1 stop

$452Delta

Wed, Nov 11 - Tue, Nov 17

6:00 am - 1:39 pm

PWM

YYZ

7h 39m

1 stop

6:00 am - 11:49 pm

YYZ

PWM

17h 49m

1 stop

$463Delta

Thu, Oct 29 - Mon, Nov 2

2:35 pm - 10:51 pm

PWM

YYZ

8h 16m

1 stop

6:15 am - 7:29 pm

YYZ

PWM

13h 14m

1 stop

$470Delta

Tue, Nov 10 - Sun, Nov 15

5:59 pm - 9:31 am

PWM

YYZ

15h 32m

1 stop

12:10 pm - 11:49 pm

YYZ

PWM

11h 39m

1 stop

$481Delta

Mon, Nov 2 - Sat, Nov 7

7:16 pm - 11:54 pm

PWM

YYZ

4h 38m

1 stop

7:43 pm - 11:51 pm

YYZ

PWM

4h 08m

1 stop

$485United Airlines

Wed, Jul 15 - Wed, Jul 22

7:35 pm - 11:54 pm

PWM

YYZ

4h 19m

1 stop

7:43 pm - 11:59 pm

YYZ

PWM

4h 16m

1 stop

$496United Airlines

Fri, Aug 21 - Mon, Aug 24

1:25 pm - 9:48 am

PWM

YUL

20h 23m

1 stop

10:30 am - 12:35 pm

YUL

PWM

26h 05m

1 stop

$526American Airlines

Fri, Jul 24 - Tue, Jul 28

12:51 pm - 9:48 am

PWM

YUL

20h 57m

2 stops

10:30 am - 12:35 pm

YUL

PWM

26h 05m

1 stop

$535American Airlines

Fri, Jul 24 - Tue, Jul 28

1:30 pm - 9:46 am

PWM

YUL

20h 16m

1 stop

10:31 am - 11:59 pm

YUL

PWM

13h 28m

2 stops

$541American Airlines

Fri, Aug 14 - Mon, Aug 17

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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

Jul 24

PWM1:25 pmPortland

20h 23m

1 stop

YUL9:48 amMontreal Pierre Elliott Trudeau Intl

Jul 28

YUL10:30 amMontreal Pierre Elliott Trudeau Intl

26h 05m

1 stop

PWM12:35 pmPortland

$526

American Airlines

Sep 8

PWM2:42 pmPortland

4h 03m

1 stop

YYZ6:45 pmToronto Pearson Intl

Sep 15

YYZ12:40 pmToronto Pearson Intl

9h 16m

1 stop

PWM9:56 pmPortland

$535

American Airlines

Jul 24

PWM1:25 pmPortland

5h 20m

1 stop

YYZ6:45 pmToronto Pearson Intl

Jul 26

YYZ7:15 amToronto Pearson Intl

5h 19m

1 stop

PWM12:34 pmPortland

$539

United Airlines flights from Portland, Maine to Region of Ontario

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

United Airlines

Jul 15

PWM7:16 pmPortland

4h 38m

1 stop

YYZ11:54 pmToronto Pearson Intl

Jul 22

YYZ7:43 pmToronto Pearson Intl

4h 08m

1 stop

PWM11:51 pmPortland

$485

United Airlines

Aug 21

PWM7:35 pmPortland

4h 19m

1 stop

YYZ11:54 pmToronto Pearson Intl

Aug 24

YYZ7:43 pmToronto Pearson Intl

4h 16m

1 stop

PWM11:59 pmPortland

$496

United Airlines

Nov 3

PWM6:00 amPortland

5h 48m

1 stop

YYZ11:48 amToronto Pearson Intl

Nov 3

YYZ2:50 pmToronto Pearson Intl

4h 34m

1 stop

PWM7:24 pmPortland

$515

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 - YYZ

PWMYYZ

Portland

Wed 11/11

6:31 pm-5:40 pm

1 stop23h 09m

Toronto Pearson Intl

Thu 11/19

5:15 pm-9:08 am

1 stop15h 53m

$438

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Wed 11/11

2:35 pm-10:51 pm

1 stop8h 16m

Toronto Pearson Intl

Tue 11/17

6:00 am-1:53 pm

1 stop7h 53m

$452

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Thu 10/29

6:00 am-1:39 pm

1 stop7h 39m

Toronto Pearson Intl

Mon 11/2

6:00 am-11:49 pm

1 stop17h 49m

$463

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 11/10

2:35 pm-10:51 pm

1 stop8h 16m

Toronto Pearson Intl

Sun 11/15

6:15 am-7:29 pm

1 stop13h 14m

$470

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Mon 11/2

5:59 pm-9:31 am

1 stop15h 32m

Toronto Pearson Intl

Sat 11/7

12:10 pm-11:49 pm

1 stop11h 39m

$481

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Wed 7/15

7:16 pm-11:54 pm

1 stop4h 38m

Toronto Pearson Intl

Wed 7/22

7:43 pm-11:51 pm

1 stop4h 08m

$485

Quickest round-trip

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 8/21

7:35 pm-11:54 pm

1 stop4h 19m

Toronto Pearson Intl

Mon 8/24

7:43 pm-11:59 pm

1 stop4h 16m

$496

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Fri 7/24

1:25 pm-9:48 am

1 stop20h 23m

Montreal Pierre Elliott Trudeau Intl

Tue 7/28

10:30 am-12:35 pm

1 stop26h 05m

$526

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Fri 7/24

12:51 pm-9:48 am

2 stops20h 57m

Montreal Pierre Elliott Trudeau Intl

Tue 7/28

10:30 am-12:35 pm

1 stop26h 05m

$535

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Fri 8/14

1:30 pm-9:46 am

1 stop20h 16m

Montreal Pierre Elliott Trudeau Intl

Mon 8/17

10:31 am-11:59 pm

2 stops13h 28m

$541

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

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 50% 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	None

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

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

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.