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$ 274 Cheap Flights from Portland, Maine to Ontario in 2026

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

Enter your travel dates to find the best prices.

9:29 a.m. - 6:45 p.m.

PWM

YYZ

9h 16m

1 stop

7:25 p.m. - 8:53 a.m.

YYZ

PWM

13h 28m

1 stop

C$ 584American Airlines

Fri, 29 May - Sun, 31 May

10:24 a.m. - 9:56 a.m.

PWM

YUL

23h 32m

1 stop

10:30 a.m. - 12:39 p.m.

YUL

PWM

26h 09m

1 stop

C$ 611American Airlines

Sat, 30 May - Sat, 6 Jun

1:36 p.m. - 11:05 p.m.

PWM

YYZ

9h 29m

1 stop

11:01 a.m. - 11:59 p.m.

YYZ

PWM

12h 58m

1 stop

C$ 626American Airlines

Fri, 12 Jun - Sun, 14 Jun

1:35 p.m. - 9:50 a.m.

PWM

YUL

20h 15m

1 stop

10:30 a.m. - 8:53 a.m.

YUL

PWM

22h 23m

1 stop

C$ 636American Airlines

Mon, 1 Jun - Mon, 8 Jun

1:36 p.m. - 11:05 p.m.

PWM

YYZ

9h 29m

1 stop

7:25 p.m. - 8:53 a.m.

YYZ

PWM

13h 28m

1 stop

C$ 637American Airlines

Thu, 4 Jun - Sun, 7 Jun

1:35 p.m. - 9:50 a.m.

PWM

YUL

20h 15m

1 stop

10:30 a.m. - 8:53 a.m.

YUL

PWM

22h 23m

1 stop

C$ 637American Airlines

Mon, 1 Jun - Mon, 8 Jun

6:02 a.m. - 1:40 p.m.

PWM

YYZ

7h 38m

1 stop

7:55 a.m. - 4:49 p.m.

YYZ

PWM

8h 54m

1 stop

C$ 658Delta

Tue, 2 Jun - Tue, 9 Jun

9:48 a.m. - 2:30 p.m.

PWM

YYZ

28h 42m

1 stop

1:30 p.m. - 9:21 a.m.

YYZ

PWM

19h 51m

1 stop

C$ 666Multiple Airlines

Wed, 14 Oct - Sat, 17 Oct

11:02 a.m. - 6:54 p.m.

PWM

YUL

7h 52m

1 stop

9:30 a.m. - 4:49 p.m.

YUL

PWM

7h 19m

1 stop

C$ 682Delta

Wed, 17 Jun - Wed, 24 Jun

2:38 p.m. - 11:16 p.m.

PWM

YYZ

8h 38m

1 stop

6:03 a.m. - 2:19 p.m.

YYZ

PWM

8h 16m

1 stop

C$ 708Delta

Thu, 4 Jun - Sun, 7 Jun

Delta flights from Portland, Maine to Region of Ontario

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

Delta

2 Jun

PWM6:02 a.m.Portland

7h 38m

1 stop

YYZ1:40 p.m.Toronto Pearson Intl

9 Jun

YYZ7:55 a.m.Toronto Pearson Intl

8h 54m

1 stop

PWM4:49 p.m.Portland

C$ 658

Delta

17 Jun

PWM11:02 a.m.Portland

7h 52m

1 stop

YUL6:54 p.m.Montreal Pierre Elliott Trudeau Intl

24 Jun

YUL9:30 a.m.Montreal Pierre Elliott Trudeau Intl

7h 19m

1 stop

PWM4:49 p.m.Portland

C$ 682

Delta

4 Jun

PWM2:38 p.m.Portland

8h 38m

1 stop

YYZ11:16 p.m.Toronto Pearson Intl

7 Jun

YYZ6:03 a.m.Toronto Pearson Intl

8h 16m

1 stop

PWM2:19 p.m.Portland

C$ 708

WestJet flights from Portland, Maine to Region of Ontario

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

WestJet

3 Jun

PWM12:50 p.m.Portland

10h 23m

1 stop

YUL11:13 p.m.Montreal Pierre Elliott Trudeau Intl

10 Jun

YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl

5h 55m

1 stop

PWM11:55 a.m.Portland

C$ 813

WestJet

12 Jun

PWM4:45 p.m.Portland

24h 39m

1 stop

YYZ5:24 p.m.Toronto Pearson Intl

14 Jun

YYZ4:15 p.m.Toronto Pearson Intl

24h 34m

2 stops

PWM4:49 p.m.Portland

C$ 827

WestJet

28 Oct

PWM5:59 p.m.Portland

36h 14m

2 stops

YYZ6:13 a.m.Toronto Pearson Intl

31 Oct

YYZ6:00 a.m.Toronto Pearson Intl

5h 53m

1 stop

PWM11:53 a.m.Portland

C$ 915

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 29/5

9:29 a.m.-6:45 p.m.

1 stop9h 16m

Toronto Pearson Intl

Sun 31/5

7:25 p.m.-8:53 a.m.

1 stop13h 28m

C$ 584

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Sat 30/5

10:24 a.m.-9:56 a.m.

1 stop23h 32m

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

10:30 a.m.-12:39 p.m.

1 stop26h 09m

C$ 611

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 12/6

1:36 p.m.-11:05 p.m.

1 stop9h 29m

Toronto Pearson Intl

Sun 14/6

11:01 a.m.-11:59 p.m.

1 stop12h 58m

C$ 626

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Mon 1/6

1:35 p.m.-9:50 a.m.

1 stop20h 15m

Montreal Pierre Elliott Trudeau Intl

Mon 8/6

10:30 a.m.-8:53 a.m.

1 stop22h 23m

C$ 636

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Thu 4/6

1:36 p.m.-11:05 p.m.

1 stop9h 29m

Toronto Pearson Intl

Sun 7/6

7:25 p.m.-8:53 a.m.

1 stop13h 28m

C$ 637

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Mon 1/6

1:35 p.m.-9:50 a.m.

1 stop20h 15m

Montreal Pierre Elliott Trudeau Intl

Mon 8/6

10:30 a.m.-8:53 a.m.

1 stop22h 23m

C$ 637

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 2/6

6:02 a.m.-1:40 p.m.

1 stop7h 38m

Toronto Pearson Intl

Tue 9/6

7:55 a.m.-4:49 p.m.

1 stop8h 54m

C$ 658

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Wed 14/10

9:48 a.m.-2:30 p.m.

1 stop28h 42m

Toronto Pearson Intl

Sat 17/10

1:30 p.m.-9:21 a.m.

1 stop19h 51m

C$ 666

Quickest round-trip

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Wed 17/6

11:02 a.m.-6:54 p.m.

1 stop7h 52m

Montreal Pierre Elliott Trudeau Intl

Wed 24/6

9:30 a.m.-4:49 p.m.

1 stop7h 19m

C$ 682

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Thu 4/6

2:38 p.m.-11:16 p.m.

1 stop8h 38m

Toronto Pearson Intl

Sun 7/6

6:03 a.m.-2:19 p.m.

1 stop8h 16m

C$ 708

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 Delta are the most popular carriers operating from Portland to Ontario

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 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.