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Cheap flights from Portland, ME to Ontario from C$ 250

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 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
26 Jan — 2 Feb1
1 adult

Cheap flight deals from Portland to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Ontario (CAON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 January 2025.

Round-trip from

C$ 446

One-way from

C$ 250
American Airlines
  • American Airlines
  • 4/2-4/2
  • 3 total stops
  • 14h 37m total
  • Portland to Ontario
Search Deals
WestJet
  • WestJet
  • 13/3
  • 1 total stop
  • 26h 22m total
  • Portland to Ontario
Search Deals

Find flight deals from Portland to Ontario

Cheapest flights from Portland to Ontario
Explore the most affordable flight options available from Portland to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 January 2025.

Tue 4/25:44 a.m.PWM - YYZ
1 stop4h 35mAmerican Airlines
Tue 4/21:55 p.m.YYZ - PWM
2 stops10h 02mAmerican Airlines
Deal found 21/1C$ 446
Tue 4/310:08 a.m.PWM - YYZ
1 stop9h 22mMultiple Airlines
Tue 11/36:49 p.m.YYZ - PWM
1 stop4h 25mMultiple Airlines
Deal found 21/1C$ 478
Tue 4/23:04 p.m.PWM - YYZ
1 stop7h 48mDelta
Fri 7/27:45 a.m.YYZ - PWM
1 stop8h 18mDelta
Deal found 21/1C$ 482
Fri 7/36:10 a.m.PWM - YYZ
1 stop6h 27mUnited Airlines
Fri 14/36:40 p.m.YYZ - PWM
1 stop4h 35mUnited Airlines
Deal found 21/1C$ 497
Fri 14/31:02 p.m.PWM - YYZ
1 stop20h 22mWestJet
Sun 16/36:49 p.m.YYZ - PWM
1 stop4h 25mWestJet
Deal found 21/1C$ 602
Fri 21/35:50 p.m.PWM - YUL
3 stops25h 10mMultiple Airlines
Wed 26/36:45 a.m.YUL - PWM
2 stops16h 29mMultiple Airlines
Deal found 21/1C$ 735
Fri 21/36:10 a.m.PWM - YUL
1 stop8h 07mUnited Airlines
Wed 26/31:25 p.m.YUL - PWM
1 stop9h 50mUnited Airlines
Deal found 21/1C$ 796
Wed 5/312:31 p.m.PWM - YUL
2 stops21h 34mAmerican Airlines
Wed 12/310:54 a.m.YUL - PWM
2 stops12h 53mAmerican Airlines
Deal found 20/1C$ 799
Fri 7/26:00 a.m.PWM - YUL
2 stops18h 39mWestJet
Mon 17/26:45 a.m.YUL - PWM
2 stops9h 18mWestJet
Deal found 21/1C$ 804
Fri 14/36:10 a.m.PWM - YYZ
1 stop5h 36mAir Canada
Sun 16/39:30 a.m.YYZ - PWM
2 stops13h 47mAir Canada
Deal found 21/1C$ 833
Fri 7/25:25 p.m.PWM - YUL
1 stop25h 42mDelta
Sat 15/26:00 a.m.YUL - PWM
1 stop13h 24mDelta
Deal found 21/1C$ 948
Fri 7/26:00 a.m.PWM - YUL
2 stops19h 53mAir Canada
Tue 18/28:15 a.m.YUL - PWM
2 stops10h 16mAir Canada
Deal found 21/1C$ 974

Find flights from Portland to Ontario within your budget

Customize your flight search to find flights from Portland to Ontario 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 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 4/2

5:44 a.m.-10:19 a.m.

1 stop4h 35m

Toronto Pearson Intl

Tue 4/2

1:55 p.m.-11:57 p.m.

2 stops10h 02m

C$ 446

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 4/3

10:08 a.m.-7:30 p.m.

1 stop9h 22m

Toronto Pearson Intl

Tue 11/3

6:49 p.m.-11:14 p.m.

1 stop4h 25m

C$ 478

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 4/2

3:04 p.m.-10:52 p.m.

1 stop7h 48m

Toronto Pearson Intl

Fri 7/2

7:45 a.m.-4:03 p.m.

1 stop8h 18m

C$ 482

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 7/3

6:10 a.m.-12:37 p.m.

1 stop6h 27m

Toronto Pearson Intl

Fri 14/3

6:40 p.m.-11:15 p.m.

1 stop4h 35m

C$ 497

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 14/3

1:02 p.m.-9:24 a.m.

1 stop20h 22m

Toronto Pearson Intl

Sun 16/3

6:49 p.m.-11:14 p.m.

1 stop4h 25m

C$ 602

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Fri 21/3

5:50 p.m.-7:00 p.m.

3 stops25h 10m

Montreal Pierre Elliott Trudeau Intl

Wed 26/3

6:45 a.m.-11:14 p.m.

2 stops16h 29m

C$ 735

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Fri 21/3

6:10 a.m.-2:17 p.m.

1 stop8h 07m

Montreal Pierre Elliott Trudeau Intl

Wed 26/3

1:25 p.m.-11:15 p.m.

1 stop9h 50m

C$ 796

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Wed 5/3

12:31 p.m.-10:05 a.m.

2 stops21h 34m

Montreal Pierre Elliott Trudeau Intl

Wed 12/3

10:54 a.m.-11:47 p.m.

2 stops12h 53m

C$ 799

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Fri 7/2

6:00 a.m.-12:39 a.m.

2 stops18h 39m

Montreal Pierre Elliott Trudeau Intl

Mon 17/2

6:45 a.m.-4:03 p.m.

2 stops9h 18m

C$ 804

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 14/3

6:10 a.m.-11:46 a.m.

1 stop5h 36m

Toronto Pearson Intl

Sun 16/3

9:30 a.m.-11:17 p.m.

2 stops13h 47m

C$ 833

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/1

Showing 1-10 of 18 results
1
2

Best time to book a flight from Portland to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Portland 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.

Travel insights for flights from Portland to Ontario

Get recent, data-driven insights about flights from Portland to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Portland, Maine to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from Portland, Maine to Region of Ontario (average of C$ 168). Flying from Portland, Maine to Region of Ontario in July is currently the most expensive (average of C$ 258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Portland to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 January 2025.

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

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 21 January 2025.
See what other customers who have flown with American Airlines, Delta and United Airlines from Portland to Ontario have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,984 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

WestJet
7.2
Good
2,829 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada
7.0
Good
8,633 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Portland to Ontario. 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 from for flights from Portland to Ontario?

    If you book a flight to Ontario from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PWM) is located 4.7 km from the centre of Portland.

  • What are the cheapest airlines to fly from Portland, Maine to Region of Ontario one-way?

    One-way options have recently been found by users for as low as C$ 250 on WestJet. Other airlines that offer cheap prices include Delta from C$ 436 and Air Canada from C$ 446 one-way.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Portland, Maine to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Portland, Maine to Region of Ontario (average of C$ 168). Flying from Portland, Maine to Region of Ontario in July is currently the most expensive (average of C$ 258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Portland to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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