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Ontario

$105+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$229
(Kiwi.com)

One-way from

$83
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$561
From Maine to Ontario
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One-way flight from Maine to Ontario
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($73 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This Booking.com deal was found by Cheapflights users on 7/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:00 amBOS - YYZ
1 stop6h 39mAir Canada
Mon 9/158:15 amYYZ - BOS
Nonstop1h 40mAir Canada
Deal found 7/29$229
This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/33:30 pmBOS - YTZ
1 stop3h 33mPorter Airlines
Mon 9/81:00 pmYTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 7/30$229
This Mytrip deal was found by Cheapflights users on 7/30. 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 8/216:00 amBOS - YYZ
Nonstop1h 55mMultiple Airlines
Wed 8/279:10 amYYZ - BOS
2 stops9h 18mMultiple Airlines
Deal found 7/30$232
This American Airlines deal was found by Cheapflights users on 7/31. 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 10/226:00 amBOS - YYZ
1 stop3h 59mAmerican Airlines
Wed 10/2212:40 pmYYZ - BOS
1 stop8h 05mAmerican Airlines
Deal found 7/31$255
This Booking.com deal was found by Cheapflights users on 7/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/257:15 pmBOS - YTZ
Nonstop1h 49mMultiple Airlines
Tue 8/267:50 pmYTZ - BOS
Nonstop1h 41mMultiple Airlines
Deal found 7/29$267
This Delta deal was found by Cheapflights users on 7/29. 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.
Sat 9/64:55 pmBOS - YYZ
1 stop6h 16mDelta
Thu 9/186:03 amYYZ - BOS
1 stop4h 50mDelta
Deal found 7/29$268
This Air Canada deal was found by Cheapflights users on 7/31. 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.
Thu 10/26:00 amBOS - YTZ
1 stop5h 45mAir Canada
Mon 10/65:25 pmYTZ - BOS
1 stop4h 00mAir Canada
Deal found 7/31$270
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Mon 9/812:40 pmBOS - YOW
1 stop3h 54mPorter Airlines
Mon 9/151:25 pmYOW - BOS
1 stop3h 26mPorter Airlines
Deal found 7/30$302
This Booking.com deal was found by Cheapflights users on 7/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/296:40 pmBOS - YUL
Nonstop1h 25mAir Canada
Sun 8/318:05 amYUL - BOS
Nonstop1h 25mAir Canada
Deal found 7/30$323
This Mytrip deal was found by Cheapflights users on 7/31. 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 8/288:45 amBOS - YUL
1 stop5h 05mPorter Airlines
Thu 9/46:55 amYUL - BOS
1 stop5h 06mPorter Airlines
Deal found 7/31$327
This Mytrip deal was found by Cheapflights users on 7/30. 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 8/206:05 amBOS - YUL
3 stops16h 10mMultiple Airlines
Fri 9/194:45 pmYUL - BOS
1 stop5h 16mMultiple Airlines
Deal found 7/30$335
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Wed 8/276:10 amBOS - YOW
2 stops8h 46mMultiple Airlines
Wed 9/33:25 pmYOW - BOS
1 stop6h 36mMultiple Airlines
Deal found 7/30$337

Cheapflights Fare Finder

 
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 July 31, 2025.
Use the filters below to find and compare flights from Maine to Ontario that are best for you.

Fly from

Maine

Fly to

Ontario

Route

Depart

Return

Price

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sat 9/13

6:00 am-12:39 pm

1 stop6h 39m

Toronto Pearson Intl

Mon 9/15

8:15 am-9:55 am

Nonstop1h 40m

$229

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 9/3

3:30 pm-7:03 pm

1 stop3h 33m

Toronto Island

Mon 9/8

1:00 pm-2:41 pm

Nonstop1h 41m

$229

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 8/21

6:00 am-7:55 am

Nonstop1h 55m

Toronto Pearson Intl

Wed 8/27

9:10 am-6:28 pm

2 stops9h 18m

$232

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Wed 10/22

6:00 am-9:59 am

1 stop3h 59m

Toronto Pearson Intl

Wed 10/22

12:40 pm-8:45 pm

1 stop8h 05m

$255

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 8/25

7:15 pm-9:04 pm

Nonstop1h 49m

Toronto Island

Tue 8/26

7:50 pm-9:31 pm

Nonstop1h 41m

$267

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sat 9/6

4:55 pm-11:11 pm

1 stop6h 16m

Toronto Pearson Intl

Sat 9/20

6:03 am-10:53 am

1 stop4h 50m

$268

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Tue 10/14

6:00 am-11:45 am

1 stop5h 45m

Toronto Island

Sat 10/18

8:50 am-2:30 pm

2 stops5h 40m

$278

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Mon 9/8

12:40 pm-4:34 pm

1 stop3h 54m

Ottawa

Mon 9/15

1:25 pm-4:51 pm

1 stop3h 26m

$302

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Fri 8/29

6:40 pm-8:05 pm

Nonstop1h 25m

Montreal Pierre Elliott Trudeau Intl

Sun 8/31

8:05 am-9:30 am

Nonstop1h 25m

$323

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Thu 8/28

8:45 am-1:50 pm

1 stop5h 05m

Montreal Pierre Elliott Trudeau Intl

Thu 9/4

6:55 am-12:01 pm

1 stop5h 06m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 60 results
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6

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.

Cheapflights Insights

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

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 July 31, 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.

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 July 31, 2025.
Get a feel of what it's like to fly with Porter Airlines, Delta, and Air Transat from Maine to Ontario by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
318 reviews

Comfort

8.0

Boarding

8.2

Food

7.6

Crew

8.7

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
318 reviews
Porter Airlines
8.0
Very good
318 reviews

Comfort

8.0

Boarding

8.2

Food

7.6

Crew

8.7

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Delta
8.0
Very good
7,981 reviews
Porter Airlines
8.0
Very good
318 reviews

Comfort

8.0

Boarding

8.2

Food

7.6

Crew

8.7

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Transat
7.7
Good
424 reviews
Porter Airlines
8.0
Very good
318 reviews

Comfort

8.0

Boarding

8.2

Food

7.6

Crew

8.7

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,900 reviews
Porter Airlines
8.0
Very good
318 reviews

Comfort

8.0

Boarding

8.2

Food

7.6

Crew

8.7

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
318 reviews

Comfort

8.0

Boarding

8.2

Food

7.6

Crew

8.7

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good 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 $83 on Porter Airlines. Other airlines that offer cheap prices include Air Canada from $106 and Air Transat from $114 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 August is currently the most expensive (average of $348). 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 airline flying from Maine to Ontario

Discover the top airline 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$247Average$413FlexibilityNo cancel feeOn-time71%

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