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$86+ 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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$213
(Booking.com)

One-way from

$86
(Air Canada)

Popular in

October

Cheapest in

March

Average price

$746
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
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Highest demand for flights based on searches. 15% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 30, 2025.

This Air Canada deal was found by Cheapflights users on 10/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:15 amBOS - YYZ
Nonstop2h 02mAir Canada
Sun 11/238:15 amYYZ - BOS
Nonstop1h 42mAir Canada
Deal found 10/29$221
This Air Canada deal was found by Cheapflights users on 10/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/205:30 amBOS - YYZ
1 stop6h 10mAir Canada
Sat 11/224:20 pmYYZ - BOS
Nonstop1h 42mAir Canada
Deal found 10/30$226
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Tue 11/253:40 pmBOS - YTZ
1 stop6h 23mPorter Airlines
Fri 11/288:00 amYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/28$235
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Fri 12/57:00 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Tue 12/91:20 pmYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/28$236
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/191:25 pmBOS - YTZ
Nonstop1h 55mPorter Airlines
Sat 11/224:30 pmYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/29$238
This Trip.com deal was found by Cheapflights users on 10/28. 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.
Thu 11/207:00 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Sun 11/238:00 amYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/28$239
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Tue 11/253:40 pmBOS - YTZ
1 stop6h 23mPorter Airlines
Wed 12/311:05 amYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/28$241
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:00 pmBOS - YTZ
Nonstop1h 55mPorter Airlines
Thu 12/118:00 amYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/29$242
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Fri 11/287:00 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Tue 12/28:30 pmYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/28$243
This Trip.com deal was found by Cheapflights users on 10/28. 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.
Fri 12/53:40 pmBOS - YTZ
1 stop6h 23mMultiple Airlines
Tue 12/910:30 amYTZ - BOS
1 stop4h 22mMultiple Airlines
Deal found 10/28$246
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Tue 12/21:25 pmBOS - YTZ
Nonstop1h 55mPorter Airlines
Tue 12/911:05 amYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/27$247
This Air Canada deal was found by Cheapflights users on 10/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:15 amBOS - YYZ
Nonstop2h 02mAir Canada
Tue 12/28:55 pmYYZ - BOS
Nonstop1h 42mAir Canada
Deal found 10/29$250

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 October 30, 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

Tue 2/3

9:00 am-10:59 am

Nonstop1h 59m

Toronto Island

Wed 2/4

2:05 pm-6:10 pm

1 stop4h 05m

$230

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Thu 11/20

3:40 pm-5:06 pm

Nonstop1h 26m

Ottawa

Mon 11/24

4:45 pm-6:11 pm

Nonstop1h 26m

$258

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 11/17

7:00 pm-8:55 pm

Nonstop1h 55m

Toronto Island

Thu 11/20

1:20 pm-2:55 pm

Nonstop1h 35m

$260

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 1/9

6:55 pm-8:54 pm

Nonstop1h 59m

Toronto Island

Sun 1/11

1:10 pm-2:45 pm

Nonstop1h 35m

$261

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Mon 12/8

7:00 am-11:29 am

1 stop4h 29m

Ottawa

Fri 12/12

8:40 am-2:55 pm

1 stop6h 15m

$261

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Fri 12/5

3:40 pm-5:09 pm

Nonstop1h 29m

Ottawa

Sun 12/7

8:40 am-2:55 pm

1 stop6h 15m

$264

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Thu 11/20

5:30 am-9:42 am

1 stop4h 12m

Ottawa

Mon 11/24

10:50 am-2:52 pm

1 stop4h 02m

$273

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 1/9

3:30 pm-7:08 pm

1 stop3h 38m

Toronto Island

Sun 1/11

2:05 pm-6:10 pm

1 stop4h 05m

$275

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Thu 1/15

9:00 am-3:04 pm

1 stop6h 04m

Ottawa

Mon 1/19

4:55 pm-6:10 pm

Nonstop1h 15m

$276

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Fri 12/5

3:40 pm-5:09 pm

Nonstop1h 29m

Ottawa

Sun 12/7

7:00 am-10:03 am

3 stops27h 03m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

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 October 30, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 19% on flights from Maine to Region of Ontario by exploring options for tickets in the evening.

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 October 30, 2025.
Get a feel of what it's like to fly with American Airlines 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.
American Airlines
7.2
Good
11,034 reviews

Comfort

7.2

Entertainment

6.9

Crew

8.0

Overall

7.2

Boarding

7.5

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
11,034 reviews
American Airlines
7.2
Good
11,034 reviews

Comfort

7.2

Entertainment

6.9

Crew

8.0

Overall

7.2

Boarding

7.5

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

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?

    Airlines like Porter Airlines, Air Transat, and Air Canada fly from Maine to Region of Ontario in about 1h 59m. The time it takes to get you to your destination can typically vary by up to 2h 13m. There are 432 mi between Maine and Region of Ontario. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $91 on Air Canada. Other airlines that offer cheap prices include Porter Airlines from $106 and Air Transat from $108 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.

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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