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$104+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
may. 5 — may. 121
lun. 5/5
lun. 5/12
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 abril 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$226
(Kiwi.com)

One-way from

$109
(Mytrip)

Popular in

April

Cheapest in

September

Average price

$542
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
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in April 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 abril 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
jue. 8/1412:15 pmBOS - YTZ
Nonstop1h 49mPorter Airlines
jue. 8/287:50 pmYTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 4/27$216
This Mytrip deal was found by Cheapflights users on 4/29. 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.
mié. 6/410:04 amBOS - YYZ
2 stops26h 26mMultiple Airlines
sáb. 6/76:30 amYYZ - BOS
1 stop16h 59mMultiple Airlines
Deal found 4/29$227
This Flightnetwork deal was found by Cheapflights users on 4/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/2510:40 amBOS - YYZ
Nonstop1h 55mAir Canada
mié. 6/254:30 pmYYZ - BOS
Nonstop1h 43mAir Canada
Deal found 4/28$242
This Vliegwinkel deal was found by Cheapflights users on 4/29. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/153:20 pmBOS - YTZ
1 stop4h 30mMultiple Airlines
dom. 5/185:55 pmYTZ - BOS
Nonstop1h 41mMultiple Airlines
Deal found 4/29$245
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
mié. 6/1810:10 amBOS - YUL
1 stop5h 50mPorter Airlines
lun. 6/236:55 amYUL - BOS
1 stop4h 36mPorter Airlines
Deal found 4/28$248
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
jue. 5/158:45 amBOS - YYZ
1 stop6h 43mPorter Airlines
lun. 5/196:50 amYYZ - BOS
1 stop3h 33mPorter Airlines
Deal found 4/27$258
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
mar. 6/36:10 amBOS - YUL
2 stops13h 47mMultiple Airlines
jue. 6/57:00 amYUL - BOS
1 stop4h 31mMultiple Airlines
Deal found 4/28$259
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/178:47 amBOS - YYZ
1 stop5h 00mUnited Airlines
jue. 7/174:30 pmYYZ - BOS
Nonstop1h 43mUnited Airlines
Deal found 4/28$265
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/276:00 amBOS - YYZ
1 stop8h 33mAmerican Airlines
mar. 5/275:55 pmYYZ - BOS
1 stop4h 56mAmerican Airlines
Deal found 4/28$268
This Flightnetwork deal was found by Cheapflights users on 4/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/293:20 pmBOS - YUL
Nonstop1h 24mAir Canada
dom. 6/18:10 amYUL - BOS
Nonstop1h 25mAir Canada
Deal found 4/28$270
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
jue. 6/2612:15 pmBOS - YOW
1 stop4h 18mPorter Airlines
sáb. 6/287:00 amYOW - BOS
1 stop4h 31mPorter Airlines
Deal found 4/28$288
This Air Canada deal was found by Cheapflights users on 4/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/35:50 amBOS - YTZ
2 stops5h 42mAir Canada
mié. 6/48:50 amYTZ - BOS
2 stops5h 42mAir Canada
Deal found 4/28$294

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 abril 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

jue. 8/14

12:15 pm-2:04 pm

Nonstop1h 49m

Toronto Island

jue. 8/28

7:50 pm-9:31 pm

Nonstop1h 41m

$216

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

mié. 6/4

10:04 am-12:30 pm

2 stops26h 26m

Toronto Pearson Intl

sáb. 6/7

6:30 am-11:29 pm

1 stop16h 59m

$227

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

mié. 6/25

10:40 am-12:35 pm

Nonstop1h 55m

Toronto Pearson Intl

mié. 6/25

4:30 pm-6:13 pm

Nonstop1h 43m

$242

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

jue. 5/15

3:20 pm-7:50 pm

1 stop4h 30m

Toronto Island

dom. 5/18

5:55 pm-7:36 pm

Nonstop1h 41m

$245

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

mié. 6/18

10:10 am-4:00 pm

1 stop5h 50m

Montreal Pierre Elliott Trudeau Intl

lun. 6/23

6:55 am-11:31 am

1 stop4h 36m

$248

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

jue. 5/15

8:45 am-3:28 pm

1 stop6h 43m

Toronto Pearson Intl

lun. 5/19

6:50 am-10:23 am

1 stop3h 33m

$258

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

mar. 6/3

6:10 am-7:57 pm

2 stops13h 47m

Montreal Pierre Elliott Trudeau Intl

jue. 6/5

7:00 am-11:31 am

1 stop4h 31m

$259

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

jue. 7/17

8:47 am-1:47 pm

1 stop5h 00m

Toronto Pearson Intl

jue. 7/17

4:30 pm-6:13 pm

Nonstop1h 43m

$265

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

mar. 5/27

6:00 am-2:33 pm

1 stop8h 33m

Toronto Pearson Intl

mar. 5/27

5:55 pm-10:51 pm

1 stop4h 56m

$268

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

jue. 5/29

3:20 pm-4:44 pm

Nonstop1h 24m

Montreal Pierre Elliott Trudeau Intl

dom. 6/1

8:10 am-9:35 am

Nonstop1h 25m

$270

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 abril 30, 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 abril 30, 2025.
See what other customers who have flown with Porter Airlines, Delta and Air Transat from Maine to Ontario have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
285 reviews

Overall

8.0

Crew

8.8

Food

7.6

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Porter Airlines
8.0
Very good
285 reviews
Porter Airlines
8.0
Very good
285 reviews

Overall

8.0

Crew

8.8

Food

7.6

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Delta
8.0
Very good
7,936 reviews
Porter Airlines
8.0
Very good
285 reviews

Overall

8.0

Crew

8.8

Food

7.6

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Air Transat
7.8
Good
385 reviews
Porter Airlines
8.0
Very good
285 reviews

Overall

8.0

Crew

8.8

Food

7.6

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
United Airlines
7.4
Good
8,696 reviews
Porter Airlines
8.0
Very good
285 reviews

Overall

8.0

Crew

8.8

Food

7.6

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
285 reviews

Overall

8.0

Crew

8.8

Food

7.6

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

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 $111 on Porter Airlines. Other airlines that offer cheap prices include Air Canada from $113 and Delta from $124 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 July is currently the most expensive (average of $359). 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 abril 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$247Average$379FlexibilityNo cancel feeOn-time71%

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