Which 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 travelling to Region of Ontario. Keep in mind that there are 3 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?

Delta, 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 were last updated today.

How old do you have to be to fly from Portland Airport to Ontario?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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.

C$ 269 Cheap Flights from Portland to Ontario in 2025

1 adult

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Find the cheapest flights from Portland, Maine to Ontario

Round-trip

One-way

Last minute

Cheap round-trip flights

2:36 p.m. - 11:11 p.m.PWM-YYZ

8h 35m1 stop

2:30 p.m. - 10:54 a.m.YYZ-PWM

20h 24m1 stop

C$ 503Delta

Find Deal

Fri, 5 Sep - Sat, 13 Sep

7:00 a.m. - 10:56 p.m.PWM-YYZ

15h 56m2 stops

6:03 a.m. - 12:34 a.m.YYZ-PWM

18h 31m1 stop

C$ 521Delta

Find Deal

Sat, 20 Sep - Sat, 27 Sep

11:58 a.m. - 9:46 a.m.PWM-YUL

21h 48m1 stop

10:34 a.m. - 8:19 p.m.YUL-PWM

33h 45m1 stop

C$ 619American Airlines

Find Deal

Sat, 20 Sep - Sat, 27 Sep

6:00 a.m. - 5:19 p.m.PWM-YYZ

11h 19m2 stops

7:15 a.m. - 4:50 p.m.YYZ-PWM

9h 35m1 stop

C$ 654American Airlines

Find Deal

Sat, 6 Sep - Sat, 13 Sep

1:02 p.m. - 9:58 a.m.PWM-YUL

20h 56m1 stop

12:59 p.m. - 11:45 p.m.YUL-PWM

10h 46m2 stops

C$ 657American Airlines

Find Deal

Tue, 9 Sep - Wed, 10 Sep

4:41 p.m. - 2:05 p.m.PWM-YYZ

21h 24m2 stops

1:35 p.m. - 2:52 p.m.YYZ-PWM

25h 17m3 stops

C$ 802

Find Deal

Sat, 20 Sep - Sat, 27 Sep

6:00 a.m. - 3:08 p.m.PWM-YYZ

9h 08m2 stops

7:30 a.m. - 6:26 p.m.YYZ-PWM

10h 56m1 stop

C$ 876

Find Deal

Tue, 2 Sep - Tue, 9 Sep

6:14 a.m. - 11:49 a.m.PWM-YYZ

5h 35m1 stop

2:45 p.m. - 9:44 p.m.YYZ-PWM

6h 59m1 stop

C$ 913United Airlines

Find Deal

Fri, 19 Sep - Fri, 26 Sep

7:22 p.m. - 11:46 p.m.PWM-YYZ

4h 24m1 stop

2:45 p.m. - 11:59 p.m.YYZ-PWM

9h 14m1 stop

C$ 975United Airlines

Find Deal

Mon, 27 Oct - Thu, 30 Oct

7:30 a.m. - 6:34 p.m.PWM-YYZ

11h 04m2 stops

7:30 a.m. - 6:26 p.m.YYZ-PWM

10h 56m1 stop

C$ 1,025Air Canada

Find Deal

Fri, 5 Sep - Sat, 13 Sep

Delta flights from Portland, Maine to Region of Ontario

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

Delta

5 Sep

PWM2:36 p.m.Portland

8h 35m

1 stop

YYZ11:11 p.m.Toronto Pearson Intl

13 Sep

YYZ2:30 p.m.Toronto Pearson Intl

20h 24m

1 stop

PWM10:54 a.m.Portland

C$ 503

Find similar

Delta

20 Sep

PWM7:00 a.m.Portland

15h 56m

2 stops

YYZ10:56 p.m.Toronto Pearson Intl

27 Sep

YYZ6:03 a.m.Toronto Pearson Intl

18h 31m

1 stop

PWM12:34 a.m.Portland

C$ 521

Find similar

Delta

1 Oct

PWM1:40 p.m.Portland

8h 17m

1 stop

YUL9:57 p.m.Montreal Pierre Elliott Trudeau Intl

31 Oct

YUL9:28 a.m.Montreal Pierre Elliott Trudeau Intl

7h 30m

1 stop

PWM4:58 p.m.Portland

C$ 661

Find similar

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

19 Sep

PWM6:14 a.m.Portland

5h 35m

1 stop

YYZ11:49 a.m.Toronto Pearson Intl

26 Sep

YYZ2:45 p.m.Toronto Pearson Intl

6h 59m

1 stop

PWM9:44 p.m.Portland

C$ 913

Find similar

United Airlines

27 Oct

PWM7:22 p.m.Portland

4h 24m

1 stop

YYZ11:46 p.m.Toronto Pearson Intl

30 Oct

YYZ2:45 p.m.Toronto Pearson Intl

9h 14m

1 stop

PWM11:59 p.m.Portland

C$ 975

Find similar

United Airlines

18 Sep

PWM3:56 p.m.Portland

6h 10m

1 stop

YUL10:06 p.m.Montreal Pierre Elliott Trudeau Intl

25 Sep

YUL9:45 a.m.Montreal Pierre Elliott Trudeau Intl

7h 57m

1 stop

PWM5:42 p.m.Portland

C$ 979

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

Fri 5/9

2:36 p.m.-11:11 p.m.

1 stop8h 35m

Toronto Pearson Intl

Sat 13/9

2:30 p.m.-10:54 a.m.

1 stop20h 24m

C$ 503

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 20/9

7:00 a.m.-10:56 p.m.

2 stops15h 56m

Toronto Pearson Intl

Sat 27/9

6:03 a.m.-12:34 a.m.

1 stop18h 31m

C$ 521

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Sat 20/9

11:58 a.m.-9:46 a.m.

1 stop21h 48m

Montreal Pierre Elliott Trudeau Intl

Sat 27/9

10:34 a.m.-8:19 p.m.

1 stop33h 45m

C$ 619

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 6/9

6:00 a.m.-5:19 p.m.

2 stops11h 19m

Toronto Pearson Intl

Sat 13/9

7:15 a.m.-4:50 p.m.

1 stop9h 35m

C$ 654

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Tue 9/9

1:02 p.m.-9:58 a.m.

1 stop20h 56m

Montreal Pierre Elliott Trudeau Intl

Wed 10/9

12:59 p.m.-11:45 p.m.

2 stops10h 46m

C$ 657

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Sat 20/9

4:41 p.m.-2:05 p.m.

2 stops21h 24m

Toronto Pearson Intl

Sat 27/9

1:35 p.m.-2:52 p.m.

3 stops25h 17m

C$ 802

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 2/9

6:00 a.m.-3:08 p.m.

2 stops9h 08m

Toronto Pearson Intl

Tue 9/9

7:30 a.m.-6:26 p.m.

1 stop10h 56m

C$ 876

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 19/9

6:14 a.m.-11:49 a.m.

1 stop5h 35m

Toronto Pearson Intl

Fri 26/9

2:45 p.m.-9:44 p.m.

1 stop6h 59m

C$ 913

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Mon 27/10

7:22 p.m.-11:46 p.m.

1 stop4h 24m

Toronto Pearson Intl

Thu 30/10

2:45 p.m.-11:59 p.m.

1 stop9h 14m

C$ 975

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 5/9

7:30 a.m.-6:34 p.m.

2 stops11h 04m

Toronto Pearson Intl

Sat 13/9

7:30 a.m.-6:26 p.m.

1 stop10h 56m

C$ 1,025

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

Prices

Airlines

What is the cheapest month to fly to Region of Ontario?

In general, March is the cheapest month to fly from Portland, Maine to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 496. If you are unable to visit Region of Ontario during the month of March, then departing from Portland, Maine during the month January is also very affordable. Most momondo users find prices during this month for around C$ 548.

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

Best price found	C$ 269
Fastest flight time	4h 07m
Direct flights	None
Airports in Region of Ontario	2 airports

The best one-way flight to Region of Ontario from Portland, Maine in the past 72 hours is C$ 269. The best round-trip flight deal from Portland, Maine to Region of Ontario found on momondo in the last 72 hours is C$ 503.

The fastest flight from Portland, Maine to Region of Ontario takes 4h 07m

There are no direct flights from Portland, Maine to Region of Ontario. Popular non-direct routes for this connection are Portland Airport - Toronto Pearson Intl Airport and Portland Airport - Montreal Pierre Elliott Trudeau Intl Airport.

There are 2 airports near Region of Ontario: Montreal Pierre Elliott Trudeau Intl (YUL), Toronto Pearson Intl (YYZ)

Search flight deals

When did momondo last update prices for flights from Portland Airport to Ontario?
Prices for flights from Portland Airport to Ontario were last updated today.
How old do you have to be to fly from Portland Airport to Ontario?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Ontario. momondo saves you time and could save you money on your trip.

Can I find flights from Portland to Ontario with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portland to Ontario flights to just show those with flexible booking policies.

How can momondo help me find flights from Portland to Ontario?

momondo helps you find the best flight between Portland and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Portland to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.