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.

$201 Cheap Flights from Portland, Maine 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.

9:29 am - 6:45 pm

PWM

YYZ

9h 16m

1 stop

7:25 pm - 8:53 am

YYZ

PWM

13h 28m

1 stop

$429American Airlines

Fri, May 29 - Sun, May 31

10:24 am - 9:56 am

PWM

YUL

23h 32m

1 stop

10:30 am - 12:39 pm

YUL

PWM

26h 09m

1 stop

$449American Airlines

Sat, May 30 - Sat, Jun 6

1:36 pm - 11:05 pm

PWM

YYZ

9h 29m

1 stop

11:01 am - 11:59 pm

YYZ

PWM

12h 58m

1 stop

$460American Airlines

Fri, Jun 12 - Sun, Jun 14

1:36 pm - 11:05 pm

PWM

YYZ

9h 29m

1 stop

7:25 pm - 8:53 am

YYZ

PWM

13h 28m

1 stop

$468American Airlines

Thu, Jun 4 - Sun, Jun 7

1:35 pm - 9:50 am

PWM

YUL

20h 15m

1 stop

10:30 am - 8:53 am

YUL

PWM

22h 23m

1 stop

$468American Airlines

Mon, Jun 1 - Mon, Jun 8

1:36 pm - 11:05 pm

PWM

YYZ

9h 29m

1 stop

7:25 pm - 9:22 am

YYZ

PWM

13h 57m

1 stop

$470American Airlines

Fri, Jun 26 - Sun, Jun 28

6:02 am - 1:40 pm

PWM

YYZ

7h 38m

1 stop

7:55 am - 4:49 pm

YYZ

PWM

8h 54m

1 stop

$483Delta

Tue, Jun 2 - Tue, Jun 9

9:48 am - 2:30 pm

PWM

YYZ

28h 42m

1 stop

1:30 pm - 9:21 am

YYZ

PWM

19h 51m

1 stop

$489Multiple Airlines

Wed, Oct 14 - Sat, Oct 17

11:02 am - 6:54 pm

PWM

YUL

7h 52m

1 stop

9:30 am - 4:49 pm

YUL

PWM

7h 19m

1 stop

$501Delta

Wed, Jun 17 - Wed, Jun 24

2:38 pm - 11:16 pm

PWM

YYZ

8h 38m

1 stop

6:03 am - 2:19 pm

YYZ

PWM

8h 16m

1 stop

$520Delta

Thu, Jun 4 - Sun, Jun 7

Delta flights from Portland, Maine to Region of Ontario

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

Delta

Jun 2

PWM6:02 amPortland

7h 38m

1 stop

YYZ1:40 pmToronto Pearson Intl

Jun 9

YYZ7:55 amToronto Pearson Intl

8h 54m

1 stop

PWM4:49 pmPortland

$483

Delta

Jun 17

PWM11:02 amPortland

7h 52m

1 stop

YUL6:54 pmMontreal Pierre Elliott Trudeau Intl

Jun 24

YUL9:30 amMontreal Pierre Elliott Trudeau Intl

7h 19m

1 stop

PWM4:49 pmPortland

$501

Delta

Jun 4

PWM2:38 pmPortland

8h 38m

1 stop

YYZ11:16 pmToronto Pearson Intl

Jun 7

YYZ6:03 amToronto Pearson Intl

8h 16m

1 stop

PWM2:19 pmPortland

$520

WestJet flights from Portland, Maine to Region of Ontario

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

WestJet

Jun 3

PWM12:50 pmPortland

10h 23m

1 stop

YUL11:13 pmMontreal Pierre Elliott Trudeau Intl

Jun 10

YUL6:00 amMontreal Pierre Elliott Trudeau Intl

5h 55m

1 stop

PWM11:55 amPortland

$597

WestJet

Jun 12

PWM4:45 pmPortland

24h 39m

1 stop

YYZ5:24 pmToronto Pearson Intl

Jun 14

YYZ4:15 pmToronto Pearson Intl

24h 34m

2 stops

PWM4:49 pmPortland

$607

WestJet

Oct 28

PWM5:59 pmPortland

36h 14m

2 stops

YYZ6:13 amToronto Pearson Intl

Oct 31

YYZ6:00 amToronto Pearson Intl

10h 10m

1 stop

PWM4:10 pmPortland

$672

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

Fri 5/29

9:29 am-6:45 pm

1 stop9h 16m

Toronto Pearson Intl

Sun 5/31

7:25 pm-8:53 am

1 stop13h 28m

$429

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Sat 5/30

10:24 am-9:56 am

1 stop23h 32m

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

10:30 am-12:39 pm

1 stop26h 09m

$449

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 6/12

1:36 pm-11:05 pm

1 stop9h 29m

Toronto Pearson Intl

Sun 6/14

11:01 am-11:59 pm

1 stop12h 58m

$460

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Thu 6/4

1:36 pm-11:05 pm

1 stop9h 29m

Toronto Pearson Intl

Sun 6/7

7:25 pm-8:53 am

1 stop13h 28m

$468

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Mon 6/1

1:35 pm-9:50 am

1 stop20h 15m

Montreal Pierre Elliott Trudeau Intl

Mon 6/8

10:30 am-8:53 am

1 stop22h 23m

$468

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 6/26

1:36 pm-11:05 pm

1 stop9h 29m

Toronto Pearson Intl

Sun 6/28

7:25 pm-9:22 am

1 stop13h 57m

$470

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 6/2

6:02 am-1:40 pm

1 stop7h 38m

Toronto Pearson Intl

Tue 6/9

7:55 am-4:49 pm

1 stop8h 54m

$483

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Wed 10/14

9:48 am-2:30 pm

1 stop28h 42m

Toronto Pearson Intl

Sat 10/17

1:30 pm-9:21 am

1 stop19h 51m

$489

Quickest round-trip

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Wed 6/17

11:02 am-6:54 pm

1 stop7h 52m

Montreal Pierre Elliott Trudeau Intl

Wed 6/24

9:30 am-4:49 pm

1 stop7h 19m

$501

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Thu 6/4

2:38 pm-11:16 pm

1 stop8h 38m

Toronto Pearson Intl

Sun 6/7

6:03 am-2:19 pm

1 stop8h 16m

$520

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 38m
Direct flights	None

The fastest flight from Portland, Maine to Region of Ontario takes 4h 38m

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.