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Cheap flights from Maine to Ontario from C$ 140

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
11 Oct — 18 Oct1
1 adult
1 adult, Economy

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 11 September 2025.

Round-trip from

C$ 294

One-way from

C$ 140

Popular in

June

Cheapest in

March

Average price

C$ 772
Air Canada
  • Air Canada
  • 2/10-4/10
  • 4 total stops
  • 16h 03m total
  • Maine to Ontario
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Air Canada
  • Air Canada
  • 2/10
  • Nonstop
  • 1h 56m total
  • Maine to Ontario
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 160 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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 11 September 2025.

Thu 2/106:00 a.m.BOS - YYZ
2 stops7h 03mAir Canada
Sat 4/1012:30 a.m.YYZ - BOS
2 stops9h 00mAir Canada
Deal found 10/9C$ 294
Thu 9/108:45 a.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Wed 15/103:10 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 9/9C$ 294
Thu 2/108:45 a.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Sun 5/1012:00 p.m.YTZ - BOS
1 stop5h 58mPorter Airlines
Deal found 10/9C$ 295
Sat 4/1010:20 a.m.BOS - YTZ
1 stop4h 25mAir Canada
Thu 16/1010:25 a.m.YTZ - BOS
1 stop4h 05mAir Canada
Deal found 11/9C$ 297
Mon 20/106:00 a.m.BOS - YYZ
1 stop4h 39mAir Canada
Fri 24/108:15 a.m.YYZ - BOS
Nonstop1h 40mAir Canada
Deal found 10/9C$ 298
Wed 5/117:05 a.m.BOS - YTZ
Nonstop1h 59mPorter Airlines
Sun 9/1111:05 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/9C$ 298
Fri 14/115:30 a.m.BOS - YYZ
1 stop6h 10mAir Canada
Mon 17/118:15 a.m.YYZ - BOS
Nonstop1h 42mAir Canada
Deal found 10/9C$ 299
Wed 8/103:30 p.m.BOS - YTZ
1 stop3h 33mPorter Airlines
Wed 15/108:20 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 9/9C$ 299
Sun 5/109:20 a.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Thu 16/108:20 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 11/9C$ 301
Thu 2/108:45 a.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Mon 6/101:00 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 11/9C$ 302
Sat 25/106:45 p.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Tue 28/1011:05 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/9C$ 303
Sat 11/107:15 a.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Sat 11/105:55 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 9/9C$ 305

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 629,999 searches. Data last updated 11 September 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 - YTZ

BOSYTZ

Boston Logan Intl

Wed 22/10

10:10 a.m.-11:59 a.m.

Nonstop1h 49m

Toronto Island

Sun 26/10

8:00 a.m.-9:35 a.m.

Nonstop1h 35m

C$ 298

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sun 9/11

7:05 a.m.-9:04 a.m.

Nonstop1h 59m

Toronto Island

Wed 12/11

11:05 a.m.-12:40 p.m.

Nonstop1h 35m

C$ 298

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 23/10

7:15 p.m.-9:04 p.m.

Nonstop1h 49m

Toronto Island

Sat 25/10

5:55 p.m.-7:36 p.m.

Nonstop1h 41m

C$ 298

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Tue 23/9

12:15 p.m.-2:04 p.m.

Nonstop1h 49m

Toronto Island

Tue 30/9

1:00 p.m.-2:41 p.m.

Nonstop1h 41m

C$ 298

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sun 5/10

6:00 a.m.-7:56 a.m.

Nonstop1h 56m

Toronto Pearson Intl

Wed 8/10

8:00 a.m.-2:30 p.m.

1 stop6h 30m

C$ 299

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Tue 28/10

6:40 p.m.-12:04 a.m.

1 stop5h 24m

Toronto Pearson Intl

Wed 29/10

10:00 a.m.-2:52 p.m.

1 stop4h 52m

C$ 306

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Wed 26/11

6:00 a.m.-11:48 a.m.

1 stop5h 48m

Toronto Pearson Intl

Wed 26/11

2:15 p.m.-3:57 p.m.

Nonstop1h 42m

C$ 313

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 3/10

7:15 p.m.-9:04 p.m.

Nonstop1h 49m

Toronto Island

Mon 6/10

1:00 p.m.-2:41 p.m.

Nonstop1h 41m

C$ 324

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sat 6/12

5:30 a.m.-9:55 a.m.

1 stop4h 25m

Toronto Island

Sat 6/12

5:30 p.m.-9:27 p.m.

1 stop3h 57m

C$ 338

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 7/11

1:25 p.m.-3:24 p.m.

Nonstop1h 59m

Toronto Island

Mon 10/11

11:05 a.m.-12:40 p.m.

Nonstop1h 35m

C$ 338

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

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.

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 11 September 2025.

When flying from 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.

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.

  • How long is the flight from Maine to Region of Ontario?

    Porter Airlines, Air Canada, and United Airlines can get you from Maine to Region of Ontario in just under 1h 49m. Your travel time can differ by up to 5h 55m. The distance between Maine and Region of Ontario is about 695 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as C$ 140. Users have also found prices from C$ 146 and C$ 146 on Delta and Porter Airlines, respectively.

  • 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 C$ 168). Flying from 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 Maine to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Maine to Ontario?

When you search for this flight from Maine to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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