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Cheap flights from Ontario to Portland from C$ 315

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 6/6. 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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Find the cheapest flights from Ontario to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
2:30 p.m. - 11:18 p.m.
YYZ
-
PWM
8h 48m
1 stop
Delta Logo
6:02 a.m. - 4:12 p.m.
PWM
-
YYZ
10h 10m
1 stop
C$ 517Delta
Wed, 27 May - Sat, 30 May
Delta Logo
2:30 p.m. - 11:18 p.m.
YYZ
-
PWM
8h 48m
1 stop
Delta Logo
6:02 a.m. - 1:40 p.m.
PWM
-
YYZ
7h 38m
1 stop
C$ 525Delta
Wed, 27 May - Sat, 30 May
Delta Logo
10:00 a.m. - 11:18 p.m.
YYZ
-
PWM
13h 18m
1 stop
Delta Logo
6:02 a.m. - 1:40 p.m.
PWM
-
YYZ
7h 38m
1 stop
C$ 527Delta
Wed, 27 May - Sat, 30 May
Delta Logo
12:05 p.m. - 12:43 a.m.
YYZ
-
PWM
12h 38m
1 stop
Delta Logo
1:18 p.m. - 11:41 p.m.
PWM
-
YYZ
10h 23m
1 stop
C$ 528Delta
Sat, 30 May - Fri, 5 Jun
American Airlines Logo
7:25 p.m. - 8:53 a.m.
YYZ
-
PWM
13h 28m
1 stop
American Airlines Logo
1:34 p.m. - 11:05 p.m.
PWM
-
YYZ
9h 31m
1 stop
C$ 530American Airlines
Tue, 26 May - Tue, 2 Jun
American Airlines Logo
3:18 p.m. - 8:53 a.m.
YYZ
-
PWM
17h 35m
1 stop
American Airlines Logo
10:24 a.m. - 6:48 p.m.
PWM
-
YYZ
8h 24m
1 stop
C$ 532American Airlines
Tue, 9 Jun - Sat, 13 Jun
Delta Logo
10:00 a.m. - 11:18 p.m.
YYZ
-
PWM
13h 18m
1 stop
Delta Logo
6:02 a.m. - 4:12 p.m.
PWM
-
YYZ
10h 10m
1 stop
C$ 542Delta
Wed, 27 May - Sat, 30 May
Delta Logo
6:00 a.m. - 10:23 a.m.
YYZ
-
PWM
4h 23m
1 stop
Delta Logo
11:03 a.m. - 11:41 p.m.
PWM
-
YYZ
12h 38m
1 stop
C$ 553Delta
Tue, 2 Jun - Wed, 3 Jun
Delta Logo
2:29 p.m. - 11:18 p.m.
YUL
-
PWM
8h 49m
1 stop
Delta Logo
1:18 p.m. - 6:53 p.m.
PWM
-
YUL
5h 35m
1 stop
C$ 558Delta
Thu, 28 May - Thu, 4 Jun
Delta Logo
2:30 p.m. - 11:18 p.m.
YYZ
-
PWM
8h 48m
1 stop
Delta Logo
5:51 p.m. - 11:41 p.m.
PWM
-
YYZ
5h 50m
1 stop
C$ 559Delta
Thu, 28 May - Thu, 4 Jun

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
26 May
YYZ7:25 p.m.Toronto Pearson Intl
13h 28m
1 stop
PWM8:53 a.m.Portland
2 Jun
PWM1:34 p.m.Portland
9h 31m
1 stop
YYZ11:05 p.m.Toronto Pearson Intl
C$ 530
American Airlines
9 Jun
YYZ3:18 p.m.Toronto Pearson Intl
17h 35m
1 stop
PWM8:53 a.m.Portland
13 Jun
PWM10:24 a.m.Portland
8h 24m
1 stop
YYZ6:48 p.m.Toronto Pearson Intl
C$ 532
American Airlines
23 May
YYZ11:01 a.m.Toronto Pearson Intl
11h 28m
1 stop
PWM10:29 p.m.Portland
30 May
PWM10:24 a.m.Portland
8h 24m
1 stop
YYZ6:48 p.m.Toronto Pearson Intl
C$ 573

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
3 Jun
YYZ7:00 p.m.Toronto Pearson Intl
4h 30m
1 stop
PWM11:30 p.m.Portland
6 Jun
PWM4:58 p.m.Portland
7h 01m
1 stop
YYZ11:59 p.m.Toronto Pearson Intl
C$ 587
United Airlines
15 May
YUL3:25 p.m.Montreal Pierre Elliott Trudeau Intl
7h 58m
1 stop
PWM11:23 p.m.Portland
18 May
PWM7:10 p.m.Portland
5h 03m
1 stop
YUL12:13 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 610
United Airlines
18 May
YUL11:23 a.m.Montreal Pierre Elliott Trudeau Intl
7h 00m
1 stop
PWM6:23 p.m.Portland
28 May
PWM10:55 a.m.Portland
5h 15m
1 stop
YUL4:10 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 612

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 2 May 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

Cheapest round-trip

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Wed 27/5

2:30 p.m.-11:18 p.m.

1 stop8h 48m

Portland

Sat 30/5

6:02 a.m.-4:12 p.m.

1 stop10h 10m

C$ 517

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Wed 27/5

2:30 p.m.-11:18 p.m.

1 stop8h 48m

Portland

Sat 30/5

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

1 stop7h 38m

C$ 525

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Wed 27/5

10:00 a.m.-11:18 p.m.

1 stop13h 18m

Portland

Sat 30/5

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

1 stop7h 38m

C$ 527

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Sat 30/5

12:05 p.m.-12:43 a.m.

1 stop12h 38m

Portland

Fri 5/6

1:18 p.m.-11:41 p.m.

1 stop10h 23m

C$ 528

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 26/5

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

1 stop13h 28m

Portland

Tue 2/6

1:34 p.m.-11:05 p.m.

1 stop9h 31m

C$ 530

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 9/6

3:18 p.m.-8:53 a.m.

1 stop17h 35m

Portland

Sat 13/6

10:24 a.m.-6:48 p.m.

1 stop8h 24m

C$ 532

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Wed 27/5

10:00 a.m.-11:18 p.m.

1 stop13h 18m

Portland

Sat 30/5

6:02 a.m.-4:12 p.m.

1 stop10h 10m

C$ 542

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 2/6

6:00 a.m.-10:23 a.m.

1 stop4h 23m

Portland

Wed 3/6

11:03 a.m.-11:41 p.m.

1 stop12h 38m

C$ 553
Quickest round-trip

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Thu 28/5

2:29 p.m.-11:18 p.m.

1 stop8h 49m

Portland

Thu 4/6

1:18 p.m.-6:53 p.m.

1 stop5h 35m

C$ 558

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Thu 28/5

2:30 p.m.-11:18 p.m.

1 stop8h 48m

Portland

Thu 4/6

5:51 p.m.-11:41 p.m.

1 stop5h 50m

C$ 559

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, December 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$ 0. If you aren’t able to travel to Portland, Maine during the month of December, then flying in May is also cheap. Prices for this month can be found on momondo for an average of C$ 0.

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

You could potentially save up to 21% 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 08m

Direct flights

None
The fastest flight from Region of Ontario to Portland, Maine takes 4h 08m
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

Frequently asked questions about flying from Ontario to Portland, Maine

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

    Prices for flights from Ontario to Portland Airport refresh daily.

  • 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$ 548Free CancellationRating
7.4
9,679 reviews
Search United Airlines flights

Travelling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Freeport
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.

An easier way to manage your Portland, Maine trip

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