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$94+ Cheap flights from Maine 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Maine to Ontario

Keep the following information in mind while searching for Maine to Ontario flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$139
(123 Milhas)

One-way from

$94
(Kiwi.com)

Popular in

May

Cheapest in

September

Average price

$483
Provider with most accurate pricing for Portland-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Portland-Toronto (YTO) flights.
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From Maine to Ontario
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One-way flight from Maine to Ontario
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($86 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Maine to Ontario

Cheapest flights from Maine to Ontario
Explore the most affordable flight options available from Maine to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This 123 Milhas deal was found by Cheapflights users on 2/20. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/146:35 amBOS - YUL
Nonstop1h 25mAir Canada
Wed 4/237:00 amYUL - BOS
1 stop5h 11mAir Canada
Deal found 2/20$139
This Mytrip deal was found by Cheapflights users on 2/19. 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.
Wed 4/22:10 pmBOS - YYZ
1 stop9h 45mMultiple Airlines
Tue 4/222:55 pmYYZ - BOS
1 stop19h 27mMultiple Airlines
Deal found 2/19$186
This Priceline deal was found by Cheapflights users on 2/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/257:05 amBOS - YTZ
Nonstop1h 59mMultiple Airlines
Wed 3/2611:40 amYTZ - BOS
Nonstop1h 40mMultiple Airlines
Deal found 2/20$194
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/202:10 pmBOS - YUL
1 stop27h 30mMultiple Airlines
Mon 3/246:35 pmYUL - BOS
1 stop15h 24mMultiple Airlines
Deal found 2/20$210
This Gotogate deal was found by Cheapflights users on 2/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/62:05 pmBOS - YTZ
Nonstop1h 59mPorter Airlines
Sun 3/911:40 amYTZ - BOS
Nonstop1h 40mPorter Airlines
Deal found 2/20$214
This United Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 3/510:50 amBOS - YUL
Nonstop1h 25mUnited Airlines
Wed 3/123:25 pmYUL - BOS
Nonstop1h 28mUnited Airlines
Deal found 2/19$234
This Kissandfly.com deal was found by Cheapflights users on 2/19. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/67:00 amBOS - YUL
Nonstop1h 23mLufthansa
Sun 3/91:30 pmYUL - BOS
Nonstop1h 28mLufthansa
Deal found 2/19$247
This Delta deal was found by Cheapflights users on 2/19. 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.
Wed 3/56:00 amBOS - YUL
1 stop4h 26mDelta
Thu 3/137:05 amYUL - BOS
1 stop9h 00mDelta
Deal found 2/19$259
This Air Canada deal was found by Cheapflights users on 2/19. 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 3/216:10 amBOS - YYZ
Nonstop2h 06mAir Canada
Sun 3/306:25 amYYZ - BOS
1 stop3h 37mAir Canada
Deal found 2/19$264
This American Airlines deal was found by Cheapflights users on 2/19. 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 3/56:00 amBOS - YUL
1 stop9h 20mAmerican Airlines
Mon 3/1010:54 amYUL - BOS
2 stops10h 58mAmerican Airlines
Deal found 2/19$264
This Air Canada deal was found by Cheapflights users on 2/19. 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 3/217:00 amBOS - YTZ
1 stop4h 50mAir Canada
Fri 3/2810:20 amYTZ - BOS
2 stops10h 24mAir Canada
Deal found 2/19$267
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2211:25 amBOS - YUL
1 stop6h 50mPorter Airlines
Mon 3/248:55 amYUL - BOS
1 stop4h 25mPorter Airlines
Deal found 2/20$270

Find flights from Maine to Ontario within your budget

Customize your flight search to find flights from Maine 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 February 20, 2025.

Fly from

Maine

Fly to

Ontario

Route

Depart

Return

Price

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Mon 4/14

6:35 am-8:00 am

Nonstop1h 25m

Montreal Pierre Elliott Trudeau Intl

Wed 4/23

7:00 am-12:11 pm

1 stop5h 11m

$139

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Wed 4/2

2:10 pm-11:55 pm

1 stop9h 45m

Toronto Pearson Intl

Tue 4/22

2:55 pm-10:22 am

1 stop19h 27m

$186

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Tue 3/25

7:05 am-9:04 am

Nonstop1h 59m

Toronto Island

Wed 3/26

11:40 am-1:20 pm

Nonstop1h 40m

$194

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Thu 3/20

2:10 pm-5:40 pm

1 stop27h 30m

Montreal Pierre Elliott Trudeau Intl

Mon 3/24

6:35 pm-9:59 am

1 stop15h 24m

$210

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 3/6

2:05 pm-4:04 pm

Nonstop1h 59m

Toronto Island

Sun 3/9

11:40 am-1:20 pm

Nonstop1h 40m

$214

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Wed 3/5

10:50 am-12:15 pm

Nonstop1h 25m

Montreal Pierre Elliott Trudeau Intl

Wed 3/12

3:25 pm-4:53 pm

Nonstop1h 28m

$234

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Thu 3/6

7:00 am-8:23 am

Nonstop1h 23m

Montreal Pierre Elliott Trudeau Intl

Sun 3/9

1:30 pm-2:58 pm

Nonstop1h 28m

$247

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Wed 3/5

6:00 am-10:26 am

1 stop4h 26m

Montreal Pierre Elliott Trudeau Intl

Thu 3/13

7:05 am-4:05 pm

1 stop9h 00m

$259

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Wed 3/5

6:00 am-3:20 pm

1 stop9h 20m

Montreal Pierre Elliott Trudeau Intl

Mon 3/10

10:54 am-9:52 pm

2 stops10h 58m

$264

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Fri 3/21

6:10 am-8:16 am

Nonstop2h 06m

Toronto Pearson Intl

Sun 3/30

6:25 am-10:02 am

1 stop3h 37m

$264

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Showing 1-10 of 60 results
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Best time to book a flight from Maine to Ontario

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

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

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

Find hourly flight availability from Maine 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 February 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from 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 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 February 20, 2025.
See what other customers who have flown with Delta, Porter Airlines and Air Transat from Maine to Ontario have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Porter Airlines
7.9
Good
276 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Air Transat
7.8
Good
380 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Aeromexico
7.5
Good
1,771 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

United Airlines
7.4
Good
8,766 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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 Maine to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    One-way options have recently been found by users for as low as $109 on Porter Airlines. Other airlines that offer cheap prices include Air Canada from $110 and United Airlines from $122 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Maine 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 Maine to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Maine to Region of Ontario (average of $243). Flying from 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 Maine 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 Maine to Ontario

Discover the top 2 airlines that operate flights from Maine 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$247Average$504FlexibilityNo cancel feeOn-time71%
WestJetCheapest$377Average$525FlexibilityNo cancel feeOn-time60%
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