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Cheap flights from Ontario to Portland from C$ 283

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 3/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ontario to Portland

Cheap round-trip flights

Delta Logo
6:04 a.m. - 1:56 p.m.YYZ-PWM
7h 52m1 stop
Delta Logo
5:00 p.m. - 10:59 p.m.PWM-YYZ
29h 59m2 stops
C$ 468Delta
Find Deal
Wed, 10 Sep - Fri, 19 Sep
Delta Logo
6:04 a.m. - 1:56 p.m.YYZ-PWM
7h 52m1 stop
Delta Logo
6:33 a.m. - 10:56 p.m.PWM-YYZ
16h 23m2 stops
C$ 485Delta
Find Deal
Wed, 10 Sep - Fri, 19 Sep
Logo
7:15 a.m. - 11:03 p.m.YYZ-PWM
15h 48m1 stop
Logo
6:00 a.m. - 7:10 p.m.PWM-YYZ
13h 10m1 stop
C$ 493
Find Deal
Tue, 16 Sep - Tue, 23 Sep
American Airlines Logo
11:00 a.m. - 11:45 p.m.YYZ-PWM
12h 45m1 stop
American Airlines Logo
9:00 a.m. - 11:03 p.m.PWM-YYZ
14h 03m1 stop
C$ 690American Airlines
Find Deal
Fri, 12 Sep - Sun, 21 Sep
United Airlines Logo
10:05 a.m. - 7:29 p.m.YYZ-PWM
9h 24m1 stop
United Airlines Logo
7:26 p.m. - 10:04 a.m.PWM-YYZ
14h 38m1 stop
C$ 692United Airlines
Find Deal
Wed, 10 Sep - Fri, 19 Sep
United Airlines Logo
7:47 p.m. - 1:22 p.m.YYZ-PWM
17h 35m2 stops
United Airlines Logo
7:26 p.m. - 1:03 p.m.PWM-YYZ
17h 37m2 stops
C$ 700United Airlines
Find Deal
Wed, 10 Sep - Fri, 19 Sep
American Airlines Logo
11:00 a.m. - 11:51 p.m.YYZ-PWM
12h 51m1 stop
American Airlines Logo
6:00 a.m. - 10:19 a.m.PWM-YYZ
4h 19m1 stop
C$ 733American Airlines
Find Deal
Fri, 17 Oct - Sun, 19 Oct
Air Canada Logo
1:20 p.m. - 11:17 p.m.YUL-PWM
9h 57m2 stops
Air Canada Logo
6:00 a.m. - 1:30 p.m.PWM-YUL
7h 30m1 stop
C$ 825Air Canada
Find Deal
Wed, 11 Feb - Wed, 18 Feb
Air Canada Logo
1:20 p.m. - 11:17 p.m.YUL-PWM
9h 57m2 stops
Air Canada Logo
6:00 a.m. - 1:30 p.m.PWM-YUL
7h 30m1 stop
C$ 826Air Canada
Find Deal
Wed, 11 Feb - Wed, 18 Feb
Logo
12:45 p.m. - 7:29 p.m.YYZ-PWM
6h 44m1 stop
Logo
6:00 a.m. - 3:24 p.m.PWM-YYZ
9h 24m1 stop
C$ 1,153
Find Deal
Wed, 27 Aug - Sat, 30 Aug

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
12 Sep
YYZ11:00 a.m.Toronto Pearson Intl
12h 45m
1 stop
PWM11:45 p.m.Portland
21 Sep
PWM9:00 a.m.Portland
14h 03m
1 stop
YYZ11:03 p.m.Toronto Pearson Intl
C$ 690
Find similar
American Airlines
17 Oct
YYZ11:00 a.m.Toronto Pearson Intl
12h 51m
1 stop
PWM11:51 p.m.Portland
19 Oct
PWM6:00 a.m.Portland
4h 19m
1 stop
YYZ10:19 a.m.Toronto Pearson Intl
C$ 733
Find similar
American Airlines
17 Oct
YYZ4:15 p.m.Toronto Pearson Intl
4h 32m
1 stop
PWM8:47 p.m.Portland
19 Oct
PWM6:00 a.m.Portland
4h 19m
1 stop
YYZ10:19 a.m.Toronto Pearson Intl
C$ 735
Find similar

Delta flights from Region of Ontario to Portland, Maine

Our best Delta deals on Region of Ontario to Portland, Maine flight tickets
Delta
10 Sep
YYZ6:04 a.m.Toronto Pearson Intl
7h 52m
1 stop
PWM1:56 p.m.Portland
19 Sep
PWM5:00 p.m.Portland
29h 59m
2 stops
YYZ10:59 p.m.Toronto Pearson Intl
C$ 468
Find similar
Delta
10 Sep
YYZ6:04 a.m.Toronto Pearson Intl
7h 52m
1 stop
PWM1:56 p.m.Portland
19 Sep
PWM6:33 a.m.Portland
16h 23m
2 stops
YYZ10:56 p.m.Toronto Pearson Intl
C$ 485
Find similar
Delta
10 Sep
YYZ6:04 a.m.Toronto Pearson Intl
7h 52m
1 stop
PWM1:56 p.m.Portland
19 Sep
PWM1:40 p.m.Portland
6h 54m
1 stop
YYZ8:34 p.m.Toronto Pearson Intl
C$ 610
Find similar

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 21 August 2025.
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

Wed 10/9

6:04 a.m.-1:56 p.m.

1 stop7h 52m

Portland

Fri 19/9

5:00 p.m.-10:59 p.m.

2 stops29h 59m

C$ 468

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Wed 10/9

6:04 a.m.-1:56 p.m.

1 stop7h 52m

Portland

Fri 19/9

6:33 a.m.-10:56 p.m.

2 stops16h 23m

C$ 485

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 16/9

7:15 a.m.-11:03 p.m.

1 stop15h 48m

Portland

Tue 23/9

6:00 a.m.-7:10 p.m.

1 stop13h 10m

C$ 493

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Fri 12/9

11:00 a.m.-11:45 p.m.

1 stop12h 45m

Portland

Sun 21/9

9:00 a.m.-11:03 p.m.

1 stop14h 03m

C$ 690

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Wed 10/9

10:05 a.m.-7:29 p.m.

1 stop9h 24m

Portland

Fri 19/9

7:26 p.m.-10:04 a.m.

1 stop14h 38m

C$ 692

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Wed 10/9

7:47 p.m.-1:22 p.m.

2 stops17h 35m

Portland

Fri 19/9

7:26 p.m.-1:03 p.m.

2 stops17h 37m

C$ 700

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Fri 17/10

11:00 a.m.-11:51 p.m.

1 stop12h 51m

Portland

Sun 19/10

6:00 a.m.-10:19 a.m.

1 stop4h 19m

C$ 733

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Wed 11/2

1:20 p.m.-11:17 p.m.

2 stops9h 57m

Portland

Wed 18/2

6:00 a.m.-1:30 p.m.

1 stop7h 30m

C$ 825

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Wed 11/2

1:20 p.m.-11:17 p.m.

2 stops9h 57m

Portland

Wed 18/2

6:00 a.m.-1:30 p.m.

1 stop7h 30m

C$ 826

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Wed 27/8

12:45 p.m.-7:29 p.m.

1 stop6h 44m

Portland

Sat 30/8

6:00 a.m.-3:24 p.m.

1 stop9h 24m

C$ 1,153

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

What is the cheapest month to fly to Portland, Maine?

In general, September is the cheapest month to fly from Region of Ontario to Portland, Maine. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 399. If you aren’t able to travel to Portland, Maine during the month of September, then flying in November is also cheap. Prices for this month can be found on momondo for an average of C$ 426.

What is the cheapest day to depart on your flight to Portland, Maine?

The cheapest day to depart on your flight to Portland, Maine is on a Tuesday when prices can be found for as low as C$ 532. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around C$ 671. These prices are subject to change though, so be sure to set up a Price Alert for flights to Portland, Maine.

What is the cheapest time of day to depart on your flight to Portland, Maine?

The cheapest time of day to fly to Portland, Maine is in the afternoon when flights can be purchased for as low as C$ 548. Try not to purchase tickets in the morning because they tend to be around C$ 630. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You could potentially save up to 5% 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

Direct flights

None
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$ 328Free CancellationRating
7.4
8,930 reviews
Search United Airlines flights
WestJetPriceFrom C$ 454Free CancellationRating
7.2
3,044 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
Jackson
Auburn
Bartlett
Boothbay Harbor
Freeport
Gorham
Lewiston
Brunswick

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.

An easier way to manage your Portland, Maine trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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