Ontario

$174+ Cheap flights from Portland, ME (PWM) to Ontario

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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
Jan 26 — Feb 21
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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 January 21, 2025.

Round-trip from

$310
(American Airlines)

One-way from

$174
(FlightHub)
From Portland to Ontario
One-way flight from Portland to Ontario

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 January 21, 2025.

This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/45:44 amPWM - YYZ
1 stop4h 35mAmerican Airlines
Tue 2/41:55 pmYYZ - PWM
2 stops10h 02mAmerican Airlines
Deal found 1/21$310
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/410:08 amPWM - YYZ
1 stop9h 22mMultiple Airlines
Tue 3/116:49 pmYYZ - PWM
1 stop4h 25mMultiple Airlines
Deal found 1/21$332
This Delta deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/43:04 pmPWM - YYZ
1 stop7h 48mDelta
Fri 2/77:45 amYYZ - PWM
1 stop8h 18mDelta
Deal found 1/21$335
This United Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/76:10 amPWM - YYZ
1 stop6h 27mUnited Airlines
Fri 3/146:40 pmYYZ - PWM
1 stop4h 35mUnited Airlines
Deal found 1/21$345
This Justfly.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/141:02 pmPWM - YYZ
1 stop20h 22mWestJet
Sun 3/166:49 pmYYZ - PWM
1 stop4h 25mWestJet
Deal found 1/21$418
This Mytrip deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/215:50 pmPWM - YUL
3 stops25h 10mMultiple Airlines
Wed 3/266:45 amYUL - PWM
2 stops16h 29mMultiple Airlines
Deal found 1/21$511
This United Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/216:10 amPWM - YUL
1 stop8h 07mUnited Airlines
Wed 3/261:25 pmYUL - PWM
1 stop9h 50mUnited Airlines
Deal found 1/21$553
This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/512:31 pmPWM - YUL
2 stops21h 34mAmerican Airlines
Wed 3/1210:54 amYUL - PWM
2 stops12h 53mAmerican Airlines
Deal found 1/20$555
This Justfly.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/76:00 amPWM - YUL
2 stops18h 39mWestJet
Mon 2/176:45 amYUL - PWM
2 stops9h 18mWestJet
Deal found 1/21$559
This Air Canada deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/146:10 amPWM - YYZ
1 stop5h 36mAir Canada
Sun 3/169:30 amYYZ - PWM
2 stops13h 47mAir Canada
Deal found 1/21$579
This Delta deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/76:00 amPWM - YUL
1 stop10h 19mDelta
Sun 2/166:00 amYUL - PWM
1 stop17h 10mDelta
Deal found 1/21$659
This Air Canada deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/76:00 amPWM - YUL
2 stops19h 53mAir Canada
Tue 2/188:15 amYUL - PWM
2 stops10h 16mAir Canada
Deal found 1/21$677

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 2,558,603 searches. Data last updated January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 2/4

5:44 am-10:19 am

1 stop4h 35m

Toronto Pearson Intl

Tue 2/4

1:55 pm-11:57 pm

2 stops10h 02m

$310

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 3/4

10:08 am-7:30 pm

1 stop9h 22m

Toronto Pearson Intl

Tue 3/11

6:49 pm-11:14 pm

1 stop4h 25m

$332

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Tue 2/4

3:04 pm-10:52 pm

1 stop7h 48m

Toronto Pearson Intl

Fri 2/7

7:45 am-4:03 pm

1 stop8h 18m

$335

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 3/7

6:10 am-12:37 pm

1 stop6h 27m

Toronto Pearson Intl

Fri 3/14

6:40 pm-11:15 pm

1 stop4h 35m

$345

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 3/14

1:02 pm-9:24 am

1 stop20h 22m

Toronto Pearson Intl

Sun 3/16

6:49 pm-11:14 pm

1 stop4h 25m

$418

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Fri 3/21

5:50 pm-7:00 pm

3 stops25h 10m

Montreal Pierre Elliott Trudeau Intl

Wed 3/26

6:45 am-11:14 pm

2 stops16h 29m

$511

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Fri 3/21

6:10 am-2:17 pm

1 stop8h 07m

Montreal Pierre Elliott Trudeau Intl

Wed 3/26

1:25 pm-11:15 pm

1 stop9h 50m

$553

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Wed 3/5

12:31 pm-10:05 am

2 stops21h 34m

Montreal Pierre Elliott Trudeau Intl

Wed 3/12

10:54 am-11:47 pm

2 stops12h 53m

$555

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Fri 2/7

6:00 am-12:39 am

2 stops18h 39m

Montreal Pierre Elliott Trudeau Intl

Mon 2/17

6:45 am-4:03 pm

2 stops9h 18m

$559

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 3/14

6:10 am-11:46 am

1 stop5h 36m

Toronto Pearson Intl

Sun 3/16

9:30 am-11:17 pm

2 stops13h 47m

$579

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

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 $243). Flying from Portland, Maine to Region of Ontario in July is currently the most expensive (average of $359). 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 January 21, 2025.

When flying from Portland, Maine to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 January 21, 2025.
Read reviews from past customers who have flown American Airlines, Delta and United Airlines from Portland to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

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

8.0
Very good
8,521 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

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

7.4
Good
8,984 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

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

7.2
Good
10,000 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

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

7.2
Good
2,829 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Reviews

1 / 10

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

7.0
Good
8,633 reviews
8.0
Very good
8,521 reviews

Crew

8.6

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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?

    For a flight from Portland to Ontario, you will be flying from Portland. Portland (PWM) is just 2.9 mi from the center of the city.

  • 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 $174 on WestJet. Other airlines that offer cheap prices include American Airlines from $270 and Delta from $303 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 $243). Flying from Portland, Maine to Region of Ontario in July is currently the most expensive (average of $359). 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.

Top 2 airlines flying from Portland to Ontario

Discover the top 2 airlines that operate flights from Portland to Ontario. 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 2,558,603 searches. Data last updated January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$247Average$504FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$491FlexibilityNo cancel feeOn-time69%
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