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Cheap flights from Ontario to Portland from C$ 373

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Portland departing on 16/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Cheap round-trip flights

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American Airlines Logo
10:58 a.m. - 11:55 p.m.
YYZ
-
PWM
12h 57m
1 stop
American Airlines Logo
6:00 a.m. - 4:41 p.m.
PWM
-
YYZ
10h 41m
1 stop
C$ 589American Airlines
Tue, 10 Mar - Tue, 17 Mar
American Airlines Logo
1:55 p.m. - 11:55 p.m.
YYZ
-
PWM
10h 00m
2 stops
American Airlines Logo
6:00 a.m. - 4:41 p.m.
PWM
-
YYZ
10h 41m
1 stop
C$ 648American Airlines
Tue, 10 Mar - Tue, 17 Mar
Delta Logo
2:29 p.m. - 11:12 p.m.
YUL
-
PWM
8h 43m
1 stop
Delta Logo
11:45 a.m. - 6:35 p.m.
PWM
-
YUL
6h 50m
1 stop
C$ 674Delta
Tue, 10 Mar - Tue, 17 Mar
United Airlines Logo
6:00 a.m. - 3:14 p.m.
YUL
-
PWM
9h 14m
1 stop
United Airlines Logo
3:05 p.m. - 9:42 p.m.
PWM
-
YUL
6h 37m
1 stop
C$ 685United Airlines
Wed, 25 Feb - Tue, 3 Mar
American Airlines Logo
7:30 a.m. - 10:28 a.m.
YUL
-
PWM
26h 58m
2 stops
American Airlines Logo
6:00 a.m. - 10:56 p.m.
PWM
-
YUL
16h 56m
2 stops
C$ 696American Airlines
Tue, 10 Mar - Tue, 17 Mar
Delta Logo
2:29 p.m. - 11:12 p.m.
YUL
-
PWM
8h 43m
1 stop
Delta Logo
5:48 p.m. - 8:30 a.m.
PWM
-
YUL
14h 42m
1 stop
C$ 701Delta
Thu, 2 Apr - Mon, 6 Apr
Delta Logo
6:00 a.m. - 11:20 p.m.
YUL
-
PWM
17h 20m
2 stops
Delta Logo
6:00 a.m. - 6:35 p.m.
PWM
-
YUL
12h 35m
1 stop
C$ 705Delta
Wed, 25 Feb - Sun, 1 Mar
United Airlines Logo
11:23 a.m. - 6:23 p.m.
YUL
-
PWM
7h 00m
1 stop
United Airlines Logo
6:00 a.m. - 1:09 p.m.
PWM
-
YUL
7h 09m
1 stop
C$ 745United Airlines
Thu, 30 Apr - Sun, 3 May
WestJet Logo
5:35 p.m. - 1:21 p.m.
YYZ
-
PWM
19h 46m
2 stops
WestJet Logo
4:50 p.m. - 1:25 p.m.
PWM
-
YYZ
20h 35m
1 stop
C$ 751WestJet
Sat, 13 Jun - Sat, 20 Jun
Air Canada Logo
1:15 p.m. - 11:20 p.m.
YUL
-
PWM
10h 05m
2 stops
Air Canada Logo
3:05 p.m. - 9:42 p.m.
PWM
-
YUL
6h 37m
1 stop
C$ 757Air Canada
Thu, 26 Feb - Tue, 3 Mar

American Airlines flights from Region of Ontario to Portland, Maine

Our best American Airlines deals on Region of Ontario to Portland, Maine flight tickets
American Airlines
10 Mar
YYZ10:58 a.m.Toronto Pearson Intl
12h 57m
1 stop
PWM11:55 p.m.Portland
17 Mar
PWM6:00 a.m.Portland
10h 41m
1 stop
YYZ4:41 p.m.Toronto Pearson Intl
C$ 589
American Airlines
10 Mar
YYZ1:55 p.m.Toronto Pearson Intl
10h 00m
2 stops
PWM11:55 p.m.Portland
17 Mar
PWM6:00 a.m.Portland
10h 41m
1 stop
YYZ4:41 p.m.Toronto Pearson Intl
C$ 648
American Airlines
10 Mar
YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl
26h 58m
2 stops
PWM10:28 a.m.Portland
17 Mar
PWM6:00 a.m.Portland
16h 56m
2 stops
YUL10:56 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 696

Delta flights from Region of Ontario to Portland, Maine

Our best Delta deals on Region of Ontario to Portland, Maine flight tickets
Delta
10 Mar
YUL2:29 p.m.Montreal Pierre Elliott Trudeau Intl
8h 43m
1 stop
PWM11:12 p.m.Portland
17 Mar
PWM11:45 a.m.Portland
6h 50m
1 stop
YUL6:35 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 674
Delta
2 Apr
YUL2:29 p.m.Montreal Pierre Elliott Trudeau Intl
8h 43m
1 stop
PWM11:12 p.m.Portland
6 Apr
PWM5:48 p.m.Portland
14h 42m
1 stop
YUL8:30 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 701
Delta
25 Feb
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
17h 20m
2 stops
PWM11:20 p.m.Portland
1 Mar
PWM6:00 a.m.Portland
12h 35m
1 stop
YUL6:35 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 705

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Portland, Maine that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 24 January 2026.
Use the filters below to find and compare flights from Ontario to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 10/3

10:58 a.m.-11:55 p.m.

1 stop12h 57m

Portland

Tue 17/3

6:00 a.m.-4:41 p.m.

1 stop10h 41m

C$ 589

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 10/3

1:55 p.m.-11:55 p.m.

2 stops10h 00m

Portland

Tue 17/3

6:00 a.m.-4:41 p.m.

1 stop10h 41m

C$ 648

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Tue 10/3

2:29 p.m.-11:12 p.m.

1 stop8h 43m

Portland

Tue 17/3

11:45 a.m.-6:35 p.m.

1 stop6h 50m

C$ 674

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Wed 25/2

6:00 a.m.-3:14 p.m.

1 stop9h 14m

Portland

Tue 3/3

3:05 p.m.-9:42 p.m.

1 stop6h 37m

C$ 685

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Tue 10/3

7:30 a.m.-10:28 a.m.

2 stops26h 58m

Portland

Tue 17/3

6:00 a.m.-10:56 p.m.

2 stops16h 56m

C$ 696

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Thu 2/4

2:29 p.m.-11:12 p.m.

1 stop8h 43m

Portland

Mon 6/4

5:48 p.m.-8:30 a.m.

1 stop14h 42m

C$ 701

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Wed 25/2

6:00 a.m.-11:20 p.m.

2 stops17h 20m

Portland

Sun 1/3

6:00 a.m.-6:35 p.m.

1 stop12h 35m

C$ 705

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Thu 30/4

11:23 a.m.-6:23 p.m.

1 stop7h 00m

Portland

Sun 3/5

6:00 a.m.-1:09 p.m.

1 stop7h 09m

C$ 745

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Sat 13/6

5:35 p.m.-1:21 p.m.

2 stops19h 46m

Portland

Sat 20/6

4:50 p.m.-1:25 p.m.

1 stop20h 35m

C$ 751

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Thu 26/2

1:15 p.m.-11:20 p.m.

2 stops10h 05m

Portland

Tue 3/3

3:05 p.m.-9:42 p.m.

1 stop6h 37m

C$ 757

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Portland from

How to get the cheapest flight ticket from Region of Ontario to Portland, Maine

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

Can stopping save me money on Region of Ontario to Portland, Maine flights?

You could potentially save up to 18% on your flight if you consider stops on a Region of Ontario to Portland, Maine flight.

Cheap Region of Ontario to Portland, Maine flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Portland, Maine

Fastest flight time

4h 10m

Direct flights

None
The fastest flight from Region of Ontario to Portland, Maine takes 4h 10m
There are no direct flights from Region of Ontario to Portland, Maine. There are no popular flight routes from Region of Ontario to Portland, Maine.
Search flight deals

  • When did momondo last update prices for flights from Ontario to Portland Airport?

    Prices for flights from Ontario to Portland Airport refresh daily.

  • How many operators does momondo search for flights from Ontario to Portland Airport?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Region of Ontario to Portland, Maine

Compare and see reviews for airlines that fly from Region of Ontario to Portland, Maine with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom C$ 377Free CancellationRating
7.4
9,198 reviews
Search United Airlines flights
WestJetPriceFrom C$ 490Free CancellationRating
7.2
3,249 reviews
Search WestJet flights

Travelling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Freeport
Auburn
Brunswick
Bartlett
Boothbay Harbor
Gorham
Lewiston
Jackson

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Portland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Portland for you.

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

All flight searches from Ontario to Portland on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Portland from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Portland, momondo offers a useful price alert feature which will track prices for flights to Portland from Ontario and alert you when they change.

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