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Cheap flights from Maine to Ontario from C$ 143

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 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
29 Dec — 5 Jan1
1 adult
1 adult, Economy, 0 bags

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 29 November 2025.

Round-trip from

C$ 315

One-way from

C$ 143

Popular in

October

Cheapest in

March

Average price

C$ 1,018
Air Canada
  • Air Canada
  • 8/1-10/1
  • 3 total stops
  • 14h 21m total
  • Maine to Ontario
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Porter Airlines
  • Porter Airlines
  • 28/12
  • 1 total stop
  • 4h 33m total
  • Maine to Ontario
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 203 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Find flight deals from Maine to Ontario

Enter your travel dates to find the best prices.

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 29 November 2025.

Sun 21/127:00 a.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Thu 1/111:05 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 28/11C$ 319
Fri 19/127:00 a.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Sun 21/128:30 p.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 27/11C$ 321
Fri 12/123:40 p.m.BOS - YTZ
1 stop6h 23mPorter Airlines
Tue 16/1211:05 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 27/11C$ 322
Mon 15/123:40 p.m.BOS - YTZ
1 stop6h 23mPorter Airlines
Tue 30/128:00 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 27/11C$ 325
Fri 12/123:40 p.m.BOS - YOW
Nonstop1h 29mMultiple Airlines
Sun 14/127:00 a.m.YOW - BOS
3 stops27h 03mMultiple Airlines
Deal found 28/11C$ 325
Thu 18/1212:29 p.m.BOS - YTZ
2 stops33h 34mMultiple Airlines
Wed 31/128:00 a.m.YTZ - BOS
Nonstop1h 35mMultiple Airlines
Deal found 28/11C$ 328
Sun 21/127:00 a.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Wed 7/110:30 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 27/11C$ 329
Fri 12/123:40 p.m.BOS - YTZ
1 stop6h 23mPorter Airlines
Fri 19/122:05 p.m.YTZ - BOS
1 stop4h 06mPorter Airlines
Deal found 28/11C$ 333
Sun 28/127:00 a.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Fri 2/18:30 p.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 27/11C$ 335
Wed 17/1210:20 a.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Thu 1/12:05 p.m.YTZ - BOS
1 stop4h 05mPorter Airlines
Deal found 28/11C$ 336
Sat 20/127:00 p.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Sun 21/128:30 p.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 27/11C$ 339
Fri 19/127:00 a.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Mon 22/128:30 p.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 28/11C$ 342

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 29 November 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

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Fri 6/2

11:50 a.m.-5:29 p.m.

1 stop5h 39m

Ottawa

Sun 8/2

4:20 p.m.-4:28 p.m.

3 stops24h 08m

C$ 294

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Sat 17/1

3:30 p.m.-5:03 p.m.

Nonstop1h 33m

Ottawa

Tue 20/1

4:35 p.m.-8:30 p.m.

1 stop3h 55m

C$ 312

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Fri 16/1

3:30 p.m.-5:03 p.m.

Nonstop1h 33m

Ottawa

Mon 19/1

7:00 a.m.-11:05 a.m.

1 stop4h 05m

C$ 317

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sat 31/1

9:00 a.m.-10:55 a.m.

Nonstop1h 55m

Toronto Island

Fri 6/2

9:30 a.m.-11:05 a.m.

Nonstop1h 35m

C$ 321

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 9/1

6:55 p.m.-8:50 p.m.

Nonstop1h 55m

Toronto Island

Mon 12/1

6:55 p.m.-8:30 p.m.

Nonstop1h 35m

C$ 321

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sun 11/1

1:30 p.m.-3:25 p.m.

Nonstop1h 55m

Toronto Island

Mon 12/1

6:55 p.m.-8:30 p.m.

Nonstop1h 35m

C$ 321

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Fri 12/12

3:40 p.m.-5:09 p.m.

Nonstop1h 29m

Ottawa

Sun 14/12

7:00 a.m.-10:03 a.m.

3 stops27h 03m

C$ 325

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 8/1

3:43 p.m.-2:20 p.m.

1 stop22h 37m

Toronto Pearson Intl

Wed 14/1

5:15 p.m.-2:38 p.m.

1 stop21h 23m

C$ 331

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Fri 23/1

10:15 a.m.-2:07 p.m.

1 stop3h 52m

Ottawa

Sun 25/1

4:20 p.m.-11:57 p.m.

3 stops31h 37m

C$ 331

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 12/3

1:00 p.m.-3:00 p.m.

Nonstop2h 00m

Toronto Pearson Intl

Sun 15/3

8:20 a.m.-10:02 a.m.

Nonstop1h 42m

C$ 333

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/11

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

How much does it cost to fly round-trip from Maine to Region of Ontario?

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 American Airlines can get you from Maine to Region of Ontario in just under 1h 33m. Your travel time can differ by up to 17h 19m. The distance between Maine and Region of Ontario is about 497 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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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