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Cheap flights from Ontario to Portland, ME from C$ 281

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — PWM
5 Aug — 12 Aug1
1 adult

Cheap flight deals from Ontario to Portland

Keep the following information in mind while searching for Ontario to Portland flight deals. Data was last updated 31 July 2025.

Round-trip from

C$ 477

One-way from

C$ 281

Popular in

May

Cheapest in

September

Average price

C$ 635
Delta
  • Delta
  • 13/10-21/10
  • 3 total stops
  • 26h 33m total
  • Ontario to Portland
Search Deals
Delta
  • Delta
  • 10/9
  • 1 total stop
  • 7h 52m total
  • Ontario to Portland
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 197 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Ontario to Portland

Cheapest flights from Ontario to Portland
Explore the most affordable flight options available from Ontario to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.

Mon 13/106:45 p.m.YYZ - PWM
1 stop16h 04mDelta
Tue 21/106:50 a.m.PWM - YYZ
2 stops10h 29mDelta
Deal found 29/7C$ 477
Fri 12/911:00 a.m.YYZ - PWM
1 stop30h 38mMultiple Airlines
Fri 19/99:46 a.m.PWM - YYZ
1 stop12h 54mMultiple Airlines
Deal found 28/7C$ 502
Sat 13/97:15 a.m.YYZ - PWM
1 stop9h 35mAmerican Airlines
Sat 20/96:00 a.m.PWM - YYZ
1 stop10h 33mAmerican Airlines
Deal found 30/7C$ 609
Fri 5/910:38 a.m.YUL - PWM
1 stop24h 48mAmerican Airlines
Fri 12/91:02 p.m.PWM - YUL
1 stop20h 44mAmerican Airlines
Deal found 31/7C$ 689
Sat 13/97:00 a.m.YYZ - PWM
1 stop7h 26mUnited Airlines
Sat 20/96:23 p.m.PWM - YYZ
1 stop5h 35mUnited Airlines
Deal found 30/7C$ 717
Mon 11/82:30 p.m.YYZ - PWM
1 stop22h 29mWestJet
Thu 14/86:00 a.m.PWM - YYZ
2 stops24h 12mWestJet
Deal found 29/7C$ 866
Thu 14/84:55 p.m.YUL - PWM
1 stop19h 13mWestJet
Fri 15/84:50 p.m.PWM - YUL
1 stop27h 14mWestJet
Deal found 30/7C$ 906
Thu 11/97:30 a.m.YYZ - PWM
1 stop5h 52mAir Canada
Sun 14/97:30 a.m.PWM - YYZ
2 stops10h 28mAir Canada
Deal found 30/7C$ 931
Fri 5/96:35 p.m.YUL - PWM
2 stops19h 51mMultiple Airlines
Fri 12/99:46 a.m.PWM - YUL
3 stops32h 09mMultiple Airlines
Deal found 31/7C$ 994

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Portland 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, Cheapflights users made 629,999 searches. Data last updated 31 July 2025.
Use the filters below to find and compare flights from Ontario to Portland that are best for you.

Fly from

Ontario

Fly to

Portland

Route

Depart

Return

Price

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Mon 13/10

6:45 p.m.-10:49 a.m.

1 stop16h 04m

Portland

Tue 21/10

6:50 a.m.-5:19 p.m.

2 stops10h 29m

C$ 477

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Fri 12/9

11:00 a.m.-5:38 p.m.

1 stop30h 38m

Portland

Fri 19/9

9:46 a.m.-10:40 p.m.

1 stop12h 54m

C$ 502

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Sat 13/9

7:15 a.m.-4:50 p.m.

1 stop9h 35m

Portland

Sat 20/9

6:00 a.m.-4:33 p.m.

1 stop10h 33m

C$ 609

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Fri 5/9

10:38 a.m.-11:26 a.m.

1 stop24h 48m

Portland

Fri 12/9

1:02 p.m.-9:46 a.m.

1 stop20h 44m

C$ 689

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Sat 13/9

7:00 a.m.-2:26 p.m.

1 stop7h 26m

Portland

Sat 20/9

6:23 p.m.-11:58 p.m.

1 stop5h 35m

C$ 717

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Mon 11/8

2:30 p.m.-12:59 p.m.

1 stop22h 29m

Portland

Thu 14/8

6:00 a.m.-6:12 a.m.

2 stops24h 12m

C$ 866

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Thu 14/8

4:55 p.m.-12:08 p.m.

1 stop19h 13m

Portland

Fri 15/8

4:50 p.m.-8:04 p.m.

1 stop27h 14m

C$ 906

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Thu 11/9

7:30 a.m.-1:22 p.m.

1 stop5h 52m

Portland

Sun 14/9

7:30 a.m.-5:58 p.m.

2 stops10h 28m

C$ 931

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Fri 5/9

6:35 p.m.-2:26 p.m.

2 stops19h 51m

Portland

Fri 12/9

9:46 a.m.-5:55 p.m.

3 stops32h 09m

C$ 994

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Wed 10/9

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

1 stop7h 52m

C$ 281

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Showing 1-10 of 15 results
1
2

Best time to book a flight from Ontario to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Portland

What is the cheapest time of day to fly from ON to PWM?

Find hourly flight availability from Ontario to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 July 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Portland, Maine as you normally would.

How much does it cost to fly round-trip from Region of Ontario to Portland, Maine?

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated 31 July 2025.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican Airlines from Ontario to Portland. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
WestJet
7.2
Good
2,978 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air Canada
7.1
Good
9,851 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Portland from Ontario?

    For a flight from Ontario to Portland, you will be flying into Portland. Portland (PWM) is just 4.7 km from the centre of the city.

  • Can I find deals for flights from Ontario to Portland that include hotel bookings?

    Yes. In addition to deals on Ontario to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Portland.

  • Can I find deals for business class flights from Ontario to Portland?

    Yes. Cheapflights offers flight deals from Ontario to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Portland?

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

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Alternative routes for Ontario to Portland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Ontario to Portland

Discover the top 2 airlines that operate flights from Ontario to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 31 July 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 327AverageC$ 659FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 452AverageC$ 635FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ontario to Portland?

When you search for this flight from Ontario to Portland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Portland?

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Yes! Cheapflights helps users easily find flights from Ontario to Portland with no change fees.

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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