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.

What is the cheapest airline that flies from Portland to Ontario?

KLM, United Airlines, and American Airlines 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.

$225 Cheap Flights from Portland to Ontario in 2025/26

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Find the cheapest flights from Portland, Maine to Ontario

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:30 am - 7:00 pm

PWM

YYZ

13h 30m2 stops

10:30 am - 9:37 pm

YYZ

PWM

11h 07m2 stops

$391American Airlines

Sat, Jan 17 - Sat, Jan 24

5:30 am - 7:00 pm

PWM

YYZ

13h 30m2 stops

10:30 am - 9:37 pm

YYZ

PWM

11h 07m2 stops

$395American Airlines

Sat, Jan 24 - Sat, Jan 31

2:35 pm - 10:56 pm

PWM

YYZ

8h 21m1 stop

6:00 am - 1:45 pm

YYZ

PWM

7h 45m1 stop

$401Delta

Sat, Jan 17 - Sat, Jan 24

5:30 am - 7:00 pm

PWM

YYZ

13h 30m2 stops

5:15 pm - 12:06 pm

YYZ

PWM

18h 51m1 stop

$407American Airlines

Sat, Jan 17 - Sat, Jan 24

5:30 am - 7:00 pm

PWM

YYZ

13h 30m2 stops

5:15 pm - 12:06 pm

YYZ

PWM

18h 51m1 stop

$411American Airlines

Sat, Jan 10 - Sun, Jan 11

5:09 pm - 11:59 am

PWM

YYZ

18h 50m1 stop

5:15 pm - 12:06 pm

YYZ

PWM

18h 51m1 stop

$422American Airlines

Sat, Jan 10 - Sun, Jan 11

11:01 am - 2:54 pm

PWM

YUL

27h 53m1 stop

4:35 pm - 9:07 am

YUL

PWM

16h 32m1 stop

$423Multiple Airlines

Sun, Jan 25 - Sun, Feb 1

5:20 am - 4:35 pm

PWM

YYZ

11h 15m1 stop

10:59 am - 11:43 pm

YYZ

PWM

12h 44m1 stop

$424American Airlines

Wed, Jan 7 - Wed, Jan 14

11:01 am - 2:54 pm

PWM

YUL

27h 53m1 stop

4:35 pm - 9:07 am

YUL

PWM

16h 32m1 stop

$430Multiple Airlines

Sun, Jan 25 - Sun, Feb 1

5:20 am - 5:28 pm

PWM

YYZ

12h 08m2 stops

5:15 pm - 12:06 pm

YYZ

PWM

18h 51m1 stop

$431American Airlines

Tue, Jan 13 - Fri, Jan 16

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

Jan 17

PWM5:30 amPortland

13h 30m

2 stops

YYZ7:00 pmToronto Pearson Intl

Jan 24

YYZ10:30 amToronto Pearson Intl

11h 07m

2 stops

PWM9:37 pmPortland

$391

Find similar

American Airlines

Jan 24

PWM5:30 amPortland

13h 30m

2 stops

YYZ7:00 pmToronto Pearson Intl

Jan 31

YYZ10:30 amToronto Pearson Intl

11h 07m

2 stops

PWM9:37 pmPortland

$395

Find similar

American Airlines

Jan 17

PWM5:30 amPortland

13h 30m

2 stops

YYZ7:00 pmToronto Pearson Intl

Jan 24

YYZ5:15 pmToronto Pearson Intl

18h 51m

1 stop

PWM12:06 pmPortland

$407

Find similar

Delta flights from Portland, Maine to Region of Ontario

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

Delta

Jan 17

PWM2:35 pmPortland

8h 21m

1 stop

YYZ10:56 pmToronto Pearson Intl

Jan 24

YYZ6:00 amToronto Pearson Intl

7h 45m

1 stop

PWM1:45 pmPortland

$401

Find similar

Delta

Jan 22

PWM6:00 amPortland

7h 22m

1 stop

YUL1:22 pmMontreal Pierre Elliott Trudeau Intl

Jan 23

YUL7:30 pmMontreal Pierre Elliott Trudeau Intl

3h 52m

1 stop

PWM11:22 pmPortland

$684

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

Sat 1/17

5:30 am-7:00 pm

2 stops13h 30m

Toronto Pearson Intl

Sat 1/24

10:30 am-9:37 pm

2 stops11h 07m

$391

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 1/24

5:30 am-7:00 pm

2 stops13h 30m

Toronto Pearson Intl

Sat 1/31

10:30 am-9:37 pm

2 stops11h 07m

$395

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 1/17

2:35 pm-10:56 pm

1 stop8h 21m

Toronto Pearson Intl

Sat 1/24

6:00 am-1:45 pm

1 stop7h 45m

$401

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 1/17

5:30 am-7:00 pm

2 stops13h 30m

Toronto Pearson Intl

Sat 1/24

5:15 pm-12:06 pm

1 stop18h 51m

$407

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 1/10

5:30 am-7:00 pm

2 stops13h 30m

Toronto Pearson Intl

Sun 1/11

5:15 pm-12:06 pm

1 stop18h 51m

$411

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 1/10

5:09 pm-11:59 am

1 stop18h 50m

Toronto Pearson Intl

Sun 1/11

5:15 pm-12:06 pm

1 stop18h 51m

$422

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Sun 1/25

11:01 am-2:54 pm

1 stop27h 53m

Montreal Pierre Elliott Trudeau Intl

Sun 2/1

4:35 pm-9:07 am

1 stop16h 32m

$423

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Wed 1/7

5:20 am-4:35 pm

1 stop11h 15m

Toronto Pearson Intl

Wed 1/14

10:59 am-11:43 pm

1 stop12h 44m

$424

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Sun 1/25

11:01 am-2:54 pm

1 stop27h 53m

Montreal Pierre Elliott Trudeau Intl

Sun 2/1

4:35 pm-9:07 am

1 stop16h 32m

$430

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 1/13

5:20 am-5:28 pm

2 stops12h 08m

Toronto Pearson Intl

Fri 1/16

5:15 pm-12:06 pm

1 stop18h 51m

$431

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 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

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

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.