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Cheap flights from Ontario to Boston from C$ 261

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 Boston departing on 30/10. 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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Cheap round-trip flights

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Multiple Airlines Logo
7:35 a.m. - 10:41 a.m.YYZ-PWM
27h 06m2 stops
Multiple Airlines Logo
6:29 p.m. - 2:54 p.m.PWM-YYZ
20h 25m1 stop
C$ 425Multiple Airlines
Find Deal
Tue, 11 Nov - Tue, 18 Nov
Multiple Airlines Logo
5:15 p.m. - 10:36 a.m.YYZ-PWM
17h 21m1 stop
Multiple Airlines Logo
6:29 p.m. - 2:54 p.m.PWM-YYZ
20h 25m1 stop
C$ 463Multiple Airlines
Find Deal
Tue, 11 Nov - Tue, 18 Nov
Delta Logo
6:00 a.m. - 11:54 p.m.YYZ-PWM
17h 54m1 stop
Delta Logo
6:35 a.m. - 10:50 p.m.PWM-YYZ
16h 15m1 stop
C$ 550Delta
Find Deal
Fri, 14 Nov - Thu, 20 Nov
American Airlines Logo
12:34 p.m. - 11:41 p.m.YYZ-PWM
11h 07m1 stop
American Airlines Logo
5:34 a.m. - 4:35 p.m.PWM-YYZ
11h 01m1 stop
C$ 687American Airlines
Find Deal
Fri, 28 Nov - Fri, 5 Dec
Delta Logo
7:59 a.m. - 11:05 p.m.YYZ-PWM
15h 06m1 stop
Delta Logo
2:35 p.m. - 10:55 p.m.PWM-YYZ
8h 20m1 stop
C$ 702Delta
Find Deal
Sun, 5 Apr - Wed, 8 Apr
United Airlines Logo
6:40 p.m. - 11:22 p.m.YYZ-PWM
4h 42m1 stop
United Airlines Logo
6:00 a.m. - 11:48 a.m.PWM-YYZ
5h 48m1 stop
C$ 729United Airlines
Find Deal
Tue, 23 Dec - Tue, 30 Dec
United Airlines Logo
9:30 a.m. - 1:39 p.m.YYZ-PWM
4h 09m1 stop
United Airlines Logo
7:08 p.m. - 11:20 p.m.PWM-YYZ
4h 12m1 stop
C$ 760United Airlines
Find Deal
Tue, 23 Dec - Tue, 23 Dec
Air Canada Logo
2:15 p.m. - 11:17 p.m.YYZ-PWM
9h 02m2 stops
Air Canada Logo
6:00 a.m. - 10:51 a.m.PWM-YYZ
4h 51m1 stop
C$ 791Air Canada
Find Deal
Fri, 14 Nov - Thu, 20 Nov
Air Canada Logo
2:15 p.m. - 11:17 p.m.YYZ-PWM
9h 02m2 stops
Air Canada Logo
10:45 a.m. - 9:45 p.m.PWM-YYZ
11h 00m2 stops
C$ 847Air Canada
Find Deal
Fri, 14 Nov - Thu, 20 Nov
American Airlines Logo
12:34 p.m. - 10:54 p.m.YYZ-PWM
10h 20m2 stops
American Airlines Logo
12:23 p.m. - 9:29 p.m.PWM-YYZ
9h 06m2 stops
C$ 1,108American Airlines
Find Deal
Fri, 28 Nov - Fri, 5 Dec

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
28 Nov
YYZ12:34 p.m.Toronto Pearson Intl
11h 07m
1 stop
PWM11:41 p.m.Portland
5 Dec
PWM5:34 a.m.Portland
11h 01m
1 stop
YYZ4:35 p.m.Toronto Pearson Intl
C$ 687
Find similar
American Airlines
28 Nov
YYZ12:34 p.m.Toronto Pearson Intl
10h 20m
2 stops
PWM10:54 p.m.Portland
5 Dec
PWM12:23 p.m.Portland
9h 06m
2 stops
YYZ9:29 p.m.Toronto Pearson Intl
C$ 1,108
Find similar

United Airlines flights from Region of Ontario to Portland, Maine

Our best United Airlines deals on Region of Ontario to Portland, Maine flight tickets
United Airlines
23 Dec
YYZ6:40 p.m.Toronto Pearson Intl
4h 42m
1 stop
PWM11:22 p.m.Portland
30 Dec
PWM6:00 a.m.Portland
5h 48m
1 stop
YYZ11:48 a.m.Toronto Pearson Intl
C$ 729
Find similar
United Airlines
23 Dec
YYZ9:30 a.m.Toronto Pearson Intl
4h 09m
1 stop
PWM1:39 p.m.Portland
23 Dec
PWM7:08 p.m.Portland
4h 12m
1 stop
YYZ11:20 p.m.Toronto Pearson Intl
C$ 760
Find similar
United Airlines
23 Dec
YYZ2:15 p.m.Toronto Pearson Intl
9h 07m
2 stops
PWM11:22 p.m.Portland
30 Dec
PWM6:00 a.m.Portland
5h 48m
1 stop
YYZ11:48 a.m.Toronto Pearson Intl
C$ 803
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 16 October 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

Tue 11/11

7:35 a.m.-10:41 a.m.

2 stops27h 06m

Portland

Tue 18/11

6:29 p.m.-2:54 p.m.

1 stop20h 25m

C$ 425

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 11/11

5:15 p.m.-10:36 a.m.

1 stop17h 21m

Portland

Tue 18/11

6:29 p.m.-2:54 p.m.

1 stop20h 25m

C$ 463

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Fri 14/11

6:00 a.m.-11:54 p.m.

1 stop17h 54m

Portland

Thu 20/11

6:35 a.m.-10:50 p.m.

1 stop16h 15m

C$ 550

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Fri 28/11

12:34 p.m.-11:41 p.m.

1 stop11h 07m

Portland

Fri 5/12

5:34 a.m.-4:35 p.m.

1 stop11h 01m

C$ 687

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Sun 5/4

7:59 a.m.-11:05 p.m.

1 stop15h 06m

Portland

Wed 8/4

2:35 p.m.-10:55 p.m.

1 stop8h 20m

C$ 702

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 23/12

6:40 p.m.-11:22 p.m.

1 stop4h 42m

Portland

Tue 30/12

6:00 a.m.-11:48 a.m.

1 stop5h 48m

C$ 729

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 23/12

9:30 a.m.-1:39 p.m.

1 stop4h 09m

Portland

Tue 23/12

7:08 p.m.-11:20 p.m.

1 stop4h 12m

C$ 760

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Fri 14/11

2:15 p.m.-11:17 p.m.

2 stops9h 02m

Portland

Thu 20/11

6:00 a.m.-10:51 a.m.

1 stop4h 51m

C$ 791

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Fri 14/11

2:15 p.m.-11:17 p.m.

2 stops9h 02m

Portland

Thu 20/11

10:45 a.m.-9:45 p.m.

2 stops11h 00m

C$ 847

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Fri 28/11

12:34 p.m.-10:54 p.m.

2 stops10h 20m

Portland

Fri 5/12

12:23 p.m.-9:29 p.m.

2 stops9h 06m

C$ 1,108

Flights are sorted by cheapest round-trip flights first.

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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, November 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$ 428. If you aren’t able to travel to Portland, Maine during the month of November, then flying in December is also cheap. Prices for this month can be found on momondo for an average of C$ 557.

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$ 538. 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$ 678. 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$ 554. Try not to purchase tickets in the morning because they tend to be around C$ 637. 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 39% 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.
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  • 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$ 332Free CancellationRating
7.4
8,982 reviews
Search United Airlines flights
WestJetPriceFrom C$ 549Free CancellationRating
7.2
3,127 reviews
Search WestJet flights

Travelling to a place near Boston?

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

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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