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.

$172 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.

5:45 pm - 10:59 am

PWM

YYZ

17h 14m

1 stop

6:15 am - 5:15 pm

YYZ

PWM

11h 00m

1 stop

$426American Airlines

Sat, Apr 25 - Wed, Apr 29

5:40 pm - 10:59 am

PWM

YYZ

17h 19m

1 stop

6:00 am - 11:34 pm

YYZ

PWM

17h 34m

1 stop

$437American Airlines

Fri, Feb 27 - Sat, Mar 21

5:06 pm - 12:14 am

PWM

YYZ

31h 08m

2 stops

7:15 am - 10:17 am

YYZ

PWM

27h 02m

1 stop

$444Multiple Airlines

Mon, Feb 23 - Tue, Mar 3

5:06 pm - 12:14 am

PWM

YYZ

31h 08m

2 stops

7:15 am - 10:17 am

YYZ

PWM

27h 02m

1 stop

$456Multiple Airlines

Mon, Feb 23 - Tue, Mar 3

9:52 am - 8:05 pm

PWM

YYZ

10h 13m

1 stop

1:30 pm - 2:31 pm

YYZ

PWM

25h 01m

2 stops

$459Multiple Airlines

Fri, May 8 - Mon, May 11

10:24 am - 11:11 pm

PWM

YYZ

12h 47m

1 stop

7:29 pm - 9:54 am

YYZ

PWM

14h 25m

1 stop

$477American Airlines

Fri, May 8 - Mon, May 11

6:00 am - 8:24 pm

PWM

YYZ

14h 24m

2 stops

2:05 pm - 10:18 am

YYZ

PWM

20h 13m

1 stop

$536United Airlines

Sat, Apr 25 - Wed, Apr 29

6:00 am - 9:17 pm

PWM

YUL

15h 17m

2 stops

8:20 am - 9:09 pm

YUL

PWM

12h 49m

2 stops

$548United Airlines

Sat, Feb 28 - Wed, Mar 4

11:45 am - 6:35 pm

PWM

YUL

6h 50m

1 stop

2:29 pm - 11:24 pm

YUL

PWM

8h 55m

1 stop

$625Delta

Fri, Apr 10 - Mon, Apr 13

6:00 am - 12:00 pm

PWM

YUL

6h 00m

1 stop

3:35 pm - 11:20 pm

YUL

PWM

7h 45m

2 stops

$661Air Canada

Mon, Feb 16 - Thu, Feb 26

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

Apr 25

PWM5:45 pmPortland

17h 14m

1 stop

YYZ10:59 amToronto Pearson Intl

Apr 29

YYZ6:15 amToronto Pearson Intl

11h 00m

1 stop

PWM5:15 pmPortland

$426

American Airlines

Feb 27

PWM5:40 pmPortland

17h 19m

1 stop

YYZ10:59 amToronto Pearson Intl

Mar 21

YYZ6:00 amToronto Pearson Intl

17h 34m

1 stop

PWM11:34 pmPortland

$437

American Airlines

May 8

PWM10:24 amPortland

12h 47m

1 stop

YYZ11:11 pmToronto Pearson Intl

May 11

YYZ7:29 pmToronto Pearson Intl

14h 25m

1 stop

PWM9:54 amPortland

$477

WestJet flights from Portland, Maine to Region of Ontario

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

WestJet

Feb 23

PWM5:59 pmPortland

4h 52m

1 stop

YYZ10:51 pmToronto Pearson Intl

Mar 3

YYZ12:11 pmToronto Pearson Intl

23h 49m

1 stop

PWM12:00 pmPortland

$567

WestJet

Feb 23

PWM5:59 pmPortland

4h 52m

1 stop

YYZ10:51 pmToronto Pearson Intl

Mar 3

YYZ5:15 pmToronto Pearson Intl

18h 45m

1 stop

PWM12:00 pmPortland

$584

WestJet

Feb 6

PWM5:59 pmPortland

4h 52m

1 stop

YYZ10:51 pmToronto Pearson Intl

Feb 9

YYZ7:45 amToronto Pearson Intl

4h 18m

1 stop

PWM12:03 pmPortland

$708

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

Sat 4/25

5:45 pm-10:59 am

1 stop17h 14m

Toronto Pearson Intl

Wed 4/29

6:15 am-5:15 pm

1 stop11h 00m

$426

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 2/27

5:40 pm-10:59 am

1 stop17h 19m

Toronto Pearson Intl

Sat 3/21

6:00 am-11:34 pm

1 stop17h 34m

$437

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Mon 2/23

5:06 pm-12:14 am

2 stops31h 08m

Toronto Pearson Intl

Tue 3/3

7:15 am-10:17 am

1 stop27h 02m

$444

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Mon 2/23

5:06 pm-12:14 am

2 stops31h 08m

Toronto Pearson Intl

Tue 3/3

7:15 am-10:17 am

1 stop27h 02m

$456

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 5/8

9:52 am-8:05 pm

1 stop10h 13m

Toronto Pearson Intl

Mon 5/11

1:30 pm-2:31 pm

2 stops25h 01m

$459

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 5/8

10:24 am-11:11 pm

1 stop12h 47m

Toronto Pearson Intl

Mon 5/11

7:29 pm-9:54 am

1 stop14h 25m

$477

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 4/25

6:00 am-8:24 pm

2 stops14h 24m

Toronto Pearson Intl

Wed 4/29

2:05 pm-10:18 am

1 stop20h 13m

$536

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Sat 2/28

6:00 am-9:17 pm

2 stops15h 17m

Montreal Pierre Elliott Trudeau Intl

Wed 3/4

8:20 am-9:09 pm

2 stops12h 49m

$548

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Fri 4/10

11:45 am-6:35 pm

1 stop6h 50m

Montreal Pierre Elliott Trudeau Intl

Mon 4/13

2:29 pm-11:24 pm

1 stop8h 55m

$625

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Mon 2/16

6:00 am-12:00 pm

1 stop6h 00m

Montreal Pierre Elliott Trudeau Intl

Thu 2/26

3:35 pm-11:20 pm

2 stops7h 45m

$661

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, Sun Country Air, 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 48% 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 48m
Direct flights	None

The fastest flight from Portland, Maine to Region of Ontario takes 4h 48m

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.