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Cheap flights from Maine to Ontario from C$ 131

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 14/7. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
24 May — 31 May1
1 adult
1 adult, Economy, 0 bags

Cheap 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 24 April 2026.

Thu 7/57:10 a.m.
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Sun 10/56:05 p.m.
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 22/4C$ 298
Mon 24/811:15 a.m.
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Wed 2/96:00 p.m.
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 22/4C$ 300
Thu 7/510:35 a.m.
BOS
-
YTZ
1 stop5h 17m
Multiple Airlines
Sun 10/51:00 p.m.
YTZ
-
BOS
Nonstop1h 41m
Multiple Airlines
Deal found 23/4C$ 301
Thu 7/57:10 a.m.
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Mon 11/56:05 p.m.
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 21/4C$ 302
Tue 16/610:05 a.m.
BOS
-
YYZ
Nonstop1h 55m
Porter Airlines
Thu 18/63:55 p.m.
YYZ
-
BOS
Nonstop1h 40m
Porter Airlines
Deal found 19/4C$ 304
Wed 15/73:25 p.m.
BOS
-
YTZ
1 stop3h 33m
Porter Airlines
Mon 20/711:55 a.m.
YTZ
-
BOS
1 stop4h 05m
Porter Airlines
Deal found 21/4C$ 304
Sat 15/87:10 a.m.
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Tue 25/86:00 p.m.
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 23/4C$ 307
Thu 7/55:10 a.m.
BOS
-
YYZ
Nonstop1h 53m
Air Canada
Sun 10/58:05 a.m.
YYZ
-
BOS
Nonstop1h 44m
Air Canada
Deal found 23/4C$ 308
Wed 20/55:30 p.m.
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Wed 27/511:55 a.m.
YTZ
-
BOS
1 stop4h 00m
Porter Airlines
Deal found 20/4C$ 308
Fri 5/67:10 a.m.
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Sat 6/611:55 a.m.
YTZ
-
BOS
1 stop4h 05m
Porter Airlines
Deal found 20/4C$ 309
Sat 23/510:05 a.m.
BOS
-
YYZ
Nonstop1h 55m
Porter Airlines
Sat 23/53:40 p.m.
YYZ
-
BOS
1 stop5h 15m
Porter Airlines
Deal found 21/4C$ 311
Thu 7/510:35 a.m.
BOS
-
YTZ
1 stop5h 17m
Multiple Airlines
Mon 11/511:55 a.m.
YTZ
-
BOS
1 stop4h 00m
Multiple Airlines
Deal found 20/4C$ 311

Find flight deals from Maine to Ontario

Keep the following information in mind while searching for Maine to Ontario flight deals. Data was last updated 24 April 2026.

Round-trip from

C$ 298

One-way from

C$ 131
Porter Airlines
  • Porter Airlines
  • 7/5-10/5
  • Nonstop
  • 3h 28m total
  • Maine to Ontario
Search Deals
Porter Airlines
  • Porter Airlines
  • 14/7
  • 1 total stop
  • 3h 33m total
  • Maine to Ontario
Search Deals

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 24 April 2026.
Use the filters below to find and compare flights from Maine to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Fri 8/5

6:50 p.m.-8:19 p.m.

Nonstop1h 29m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

8:20 a.m.-9:45 a.m.

Nonstop1h 25m

C$ 379

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Thu 18/6

5:45 a.m.-7:15 a.m.

Nonstop1h 30m

Montreal Pierre Elliott Trudeau Intl

Sun 21/6

8:25 a.m.-9:50 a.m.

Nonstop1h 25m

C$ 379

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 22/5

7:10 a.m.-8:57 a.m.

Nonstop1h 47m

Toronto Island

Tue 26/5

9:00 a.m.-3:55 p.m.

2 stops6h 55m

C$ 380

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Tue 9/6

3:25 p.m.-8:24 p.m.

1 stop4h 59m

Toronto Pearson Intl

Tue 23/6

1:50 p.m.-7:05 p.m.

1 stop5h 15m

C$ 393

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sat 30/5

3:25 p.m.-8:24 p.m.

1 stop4h 59m

Toronto Pearson Intl

Tue 2/6

1:50 p.m.-7:05 p.m.

1 stop5h 15m

C$ 393

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 2/9

3:25 p.m.-6:58 p.m.

1 stop3h 33m

Toronto Island

Wed 9/9

9:00 a.m.-4:00 p.m.

2 stops7h 00m

C$ 411

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Fri 15/5

7:00 p.m.-11:41 p.m.

1 stop4h 41m

Toronto Pearson Intl

Fri 22/5

6:37 p.m.-11:37 p.m.

1 stop5h 00m

C$ 412

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sun 17/5

6:00 a.m.-11:15 a.m.

1 stop5h 15m

Toronto Pearson Intl

Wed 27/5

6:00 a.m.-10:25 a.m.

1 stop4h 25m

C$ 412

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Thu 7/5

8:30 a.m.-1:09 p.m.

1 stop4h 39m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

6:00 a.m.-12:51 p.m.

1 stop6h 51m

C$ 413

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 7/5

6:00 a.m.-11:49 a.m.

1 stop5h 49m

Toronto Pearson Intl

Sun 10/5

7:30 a.m.-12:51 p.m.

1 stop5h 21m

C$ 416

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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
No data available for this route at this time. Please check back soon.

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?

    Air Canada, Porter Airlines, and Delta can get you from Maine to Region of Ontario in just under 1h 29m. Your travel time can differ by up to 3h 12m. The distance between Maine and Region of Ontario is about 407 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

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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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Users can book flights with no change fees policies with our dedicated filters. Book flights from Maine to Ontario flexibly with Cheapflights today.

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