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.

$184 Cheap Flights from Portland to Ontario in 2026

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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.

3:39 pm - 11:11 pm

PWM

YYZ

7h 32m

1 stop

7:25 pm - 9:54 am

YYZ

PWM

14h 29m

1 stop

$385American Airlines

Wed, Apr 8 - Wed, Apr 15

3:40 pm - 10:19 am

PWM

YYZ

18h 39m

1 stop

7:25 pm - 9:54 am

YYZ

PWM

14h 29m

1 stop

$434American Airlines

Sat, Apr 11 - Tue, Apr 14

9:52 am - 8:05 pm

PWM

YYZ

10h 13m

1 stop

4:50 pm - 9:12 am

YYZ

PWM

16h 22m

1 stop

$437Multiple Airlines

Fri, Jun 12 - Sun, Jun 14

10:24 am - 6:45 pm

PWM

YYZ

8h 21m

1 stop

3:15 pm - 9:54 am

YYZ

PWM

18h 39m

1 stop

$450American Airlines

Wed, May 6 - Sat, May 9

3:39 pm - 11:11 pm

PWM

YYZ

7h 32m

1 stop

7:15 am - 4:23 pm

YYZ

PWM

9h 08m

1 stop

$460American Airlines

Thu, Apr 30 - Sun, May 3

9:52 am - 11:35 pm

PWM

YYZ

13h 43m

1 stop

7:45 am - 7:16 pm

YYZ

PWM

11h 31m

2 stops

$496Multiple Airlines

Fri, Jun 12 - Sun, Jun 14

11:35 am - 6:51 pm

PWM

YUL

7h 16m

1 stop

2:29 pm - 11:18 pm

YUL

PWM

8h 49m

1 stop

$556Delta

Tue, May 5 - Tue, May 12

6:00 am - 1:09 pm

PWM

YUL

7h 09m

1 stop

11:23 am - 6:29 pm

YUL

PWM

7h 06m

1 stop

$563United Airlines

Thu, Jun 25 - Sat, Jul 4

3:22 pm - 10:06 pm

PWM

YUL

6h 44m

1 stop

6:10 am - 9:40 pm

YUL

PWM

15h 30m

1 stop

$577United Airlines

Mon, Apr 13 - Mon, Apr 20

4:50 pm - 11:10 pm

PWM

YUL

6h 20m

1 stop

9:28 am - 1:21 pm

YUL

PWM

3h 53m

1 stop

$619Delta

Thu, Jun 25 - Sat, Jul 4

Delta flights from Portland, Maine to Region of Ontario

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

Delta

Apr 13

PWM5:26 pmPortland

6h 17m

1 stop

YYZ11:43 pmToronto Pearson Intl

Apr 20

YYZ6:00 amToronto Pearson Intl

8h 11m

1 stop

PWM2:11 pmPortland

$487

Delta

Jun 23

PWM5:59 pmPortland

5h 23m

1 stop

YYZ11:22 pmToronto Pearson Intl

Jun 30

YYZ6:15 amToronto Pearson Intl

7h 06m

1 stop

PWM1:21 pmPortland

$540

Delta

Jun 24

PWM6:00 amPortland

17h 22m

1 stop

YYZ11:22 pmToronto Pearson Intl

Jun 30

YYZ6:15 amToronto Pearson Intl

7h 06m

1 stop

PWM1:21 pmPortland

$551

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

Jun 19

PWM6:19 pmPortland

5h 40m

1 stop

YYZ11:59 pmToronto Pearson Intl

Jun 26

YYZ7:30 amToronto Pearson Intl

5h 55m

1 stop

PWM1:25 pmPortland

$561

United Airlines

Jun 25

PWM6:00 amPortland

7h 09m

1 stop

YUL1:09 pmMontreal Pierre Elliott Trudeau Intl

Jul 4

YUL11:23 amMontreal Pierre Elliott Trudeau Intl

7h 06m

1 stop

PWM6:29 pmPortland

$563

United Airlines

Apr 13

PWM3:22 pmPortland

6h 44m

1 stop

YUL10:06 pmMontreal Pierre Elliott Trudeau Intl

Apr 20

YUL6:10 amMontreal Pierre Elliott Trudeau Intl

15h 30m

1 stop

PWM9:40 pmPortland

$577

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 4/8

3:39 pm-11:11 pm

1 stop7h 32m

Toronto Pearson Intl

Wed 4/15

7:25 pm-9:54 am

1 stop14h 29m

$385

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 4/11

3:40 pm-10:19 am

1 stop18h 39m

Toronto Pearson Intl

Tue 4/14

7:25 pm-9:54 am

1 stop14h 29m

$434

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 6/12

9:52 am-8:05 pm

1 stop10h 13m

Toronto Pearson Intl

Sun 6/14

4:50 pm-9:12 am

1 stop16h 22m

$437

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Wed 5/6

10:24 am-6:45 pm

1 stop8h 21m

Toronto Pearson Intl

Sat 5/9

3:15 pm-9:54 am

1 stop18h 39m

$450

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Thu 4/30

3:39 pm-11:11 pm

1 stop7h 32m

Toronto Pearson Intl

Sun 5/3

7:15 am-4:23 pm

1 stop9h 08m

$460

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 6/12

9:52 am-11:35 pm

1 stop13h 43m

Toronto Pearson Intl

Sun 6/14

7:45 am-7:16 pm

2 stops11h 31m

$496

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Tue 5/5

11:35 am-6:51 pm

1 stop7h 16m

Montreal Pierre Elliott Trudeau Intl

Tue 5/12

2:29 pm-11:18 pm

1 stop8h 49m

$556

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Thu 6/25

6:00 am-1:09 pm

1 stop7h 09m

Montreal Pierre Elliott Trudeau Intl

Sat 7/4

11:23 am-6:29 pm

1 stop7h 06m

$563

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Mon 4/13

3:22 pm-10:06 pm

1 stop6h 44m

Montreal Pierre Elliott Trudeau Intl

Mon 4/20

6:10 am-9:40 pm

1 stop15h 30m

$577

Quickest round-trip

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Thu 6/25

4:50 pm-11:10 pm

1 stop6h 20m

Montreal Pierre Elliott Trudeau Intl

Sat 7/4

9:28 am-1:21 pm

1 stop3h 53m

$619

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 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 29m
Direct flights	None

The fastest flight from Portland, Maine to Region of Ontario takes 4h 29m

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.