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$115+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
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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 December 22, 2024.

Round-trip from

$310
(Mytrip)

One-way from

$115
(Kiwi.com)
From Portland to Ontario
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One-way flight from Portland to Ontario
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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 December 22, 2024.

This Mytrip deal was found by Cheapflights users on 12/21. 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 12/275:56 pmPWM - YUL
2 stops23h 39mMultiple Airlines
Sun 12/292:35 pmYUL - PWM
2 stops20h 46mMultiple Airlines
Deal found 12/21$887
This Kiwi.com deal was found by Cheapflights users on 12/21. 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.
Fri 12/277:00 amPWM - YUL
1 stop5h 14mWestJet
Sun 12/296:05 amYUL - PWM
1 stop8h 24mWestJet
Deal found 12/21$1,002
This American Airlines deal was found by Cheapflights users on 12/21. 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.
Fri 12/276:00 amPWM - YUL
2 stops10h 45mAmerican Airlines
Sun 12/2912:55 pmYUL - PWM
1 stop26h 45mAmerican Airlines
Deal found 12/21$1,111

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 December 22, 2024.

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Route

Depart

Return

Price

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Mon 1/20

6:18 pm-11:45 am

2 stops17h 27m

Toronto Pearson Intl

Sun 1/26

7:00 pm-5:38 pm

2 stops22h 38m

$310

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Mon 1/20

6:00 am-12:37 pm

1 stop6h 37m

Toronto Pearson Intl

Sun 1/26

9:00 am-2:42 pm

1 stop5h 42m

$311

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Mon 2/3

5:44 am-10:19 am

1 stop4h 35m

Toronto Pearson Intl

Mon 2/10

10:54 am-10:34 pm

2 stops11h 40m

$320

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Fri 1/10

6:18 pm-5:15 pm

3 stops22h 57m

Montreal Pierre Elliott Trudeau Intl

Sun 1/12

2:35 pm-11:26 am

2 stops20h 51m

$379

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Fri 3/14

7:00 am-7:09 pm

1 stop12h 09m

Toronto Pearson Intl

Sun 3/16

6:15 am-11:50 am

1 stop5h 35m

$411

PortlandToronto

PWM - YYZ

PWMYYZ

Portland

Thu 3/6

6:01 am-12:37 pm

1 stop6h 36m

Toronto Pearson Intl

Sat 3/8

6:05 pm-11:15 pm

1 stop5h 10m

$511

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Fri 1/10

4:00 pm-10:10 am

2 stops18h 10m

Montreal Pierre Elliott Trudeau Intl

Sun 1/12

5:35 pm-1:54 pm

2 stops20h 19m

$515

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Sat 1/18

6:00 am-2:17 pm

1 stop8h 17m

Montreal Pierre Elliott Trudeau Intl

Sat 1/25

8:00 pm-10:32 am

1 stop14h 32m

$534

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Tue 2/4

4:46 pm-11:22 pm

1 stop6h 36m

Montreal Pierre Elliott Trudeau Intl

Tue 2/11

6:45 am-4:44 pm

2 stops9h 59m

$667

PortlandMontreal

PWM - YUL

PWMYUL

Portland

Tue 2/4

6:00 am-10:26 am

1 stop4h 26m

Montreal Pierre Elliott Trudeau Intl

Tue 2/11

11:20 am-4:44 pm

1 stop5h 24m

$668

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 15 results
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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 December 22, 2024.

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 December 22, 2024.
Read reviews from past customers who have flown United Airlines, American Airlines and WestJet from Portland to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,594 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Food

7.3

Crew

8.6

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
8,594 reviews
Delta
8.0
Very good
8,594 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Food

7.3

Crew

8.6

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
9,028 reviews
Delta
8.0
Very good
8,594 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Food

7.3

Crew

8.6

Reviews

1 / 10

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

WestJet
7.3
Good
2,812 reviews
Delta
8.0
Very good
8,594 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Food

7.3

Crew

8.6

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
8,594 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Food

7.3

Crew

8.6

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
8,413 reviews
Delta
8.0
Very good
8,594 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Food

7.3

Crew

8.6

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 $129 on Air Canada. Other airlines that offer cheap prices include WestJet from $183 and United Airlines from $215 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.
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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 December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$247Average$504FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$491FlexibilityNo cancel feeOn-time69%
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