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$96+ 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
Apr 17 — Apr 241
Fri 4/17
Fri 4/24
1 adult, Economy
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Cheap 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 March 18, 2026.

This Trip.com deal was found by Cheapflights users on 3/16. 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 4/3010:20 am
BOS
-
YTZ
Nonstop1h 54m
Porter Airlines
Fri 5/110:00 am
YTZ
-
BOS
1 stop6h 00m
Porter Airlines
Deal found 3/16$225
This Trip.com deal was found by Cheapflights users on 3/16. 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 4/237:00 am
BOS
-
YTZ
Nonstop1h 54m
Porter Airlines
Mon 4/277:35 pm
YTZ
-
BOS
Nonstop1h 35m
Porter Airlines
Deal found 3/16$226
This Kiwi.com deal was found by Cheapflights users on 3/16. 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.
Sat 4/187:00 am
BOS
-
YTZ
Nonstop1h 54m
Porter Airlines
Thu 4/238:00 am
YTZ
-
BOS
Nonstop1h 35m
Porter Airlines
Deal found 3/16$227
This FlightHub deal was found by Cheapflights users on 3/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:00 am
BOS
-
YTZ
Nonstop1h 54m
Porter Airlines
Wed 4/298:00 am
YTZ
-
BOS
Nonstop1h 35m
Porter Airlines
Deal found 3/17$228
This FlightHub deal was found by Cheapflights users on 3/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/281:25 pm
BOS
-
YTZ
Nonstop1h 54m
Porter Airlines
Thu 4/307:35 pm
YTZ
-
BOS
Nonstop1h 35m
Porter Airlines
Deal found 3/15$229
This Mytrip deal was found by Cheapflights users on 3/17. 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.
Thu 4/235:30 am
BOS
-
YTZ
1 stop6h 22m
Multiple Airlines
Mon 4/277:35 pm
YTZ
-
BOS
Nonstop1h 35m
Multiple Airlines
Deal found 3/17$230
This Flightnetwork deal was found by Cheapflights users on 3/16. 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.
Thu 4/3010:40 am
BOS
-
YTZ
1 stop5h 12m
Multiple Airlines
Thu 5/710:00 am
YTZ
-
BOS
1 stop6h 00m
Multiple Airlines
Deal found 3/16$231
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 6/125:30 pm
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Mon 6/158:50 am
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 3/17$232
This Trip.com deal was found by Cheapflights users on 3/17. 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 5/13:25 pm
BOS
-
YTZ
1 stop3h 33m
Porter Airlines
Fri 5/83:05 pm
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 3/17$234
This Mytrip deal was found by Cheapflights users on 3/16. 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 6/167:10 am
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Wed 6/243:05 pm
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 3/16$236
This Flightnetwork deal was found by Cheapflights users on 3/17. 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.
Thu 4/93:30 pm
BOS
-
YYZ
1 stop4h 40m
Multiple Airlines
Sun 4/128:15 am
YYZ
-
BOS
Nonstop1h 44m
Multiple Airlines
Deal found 3/17$237
This Flightnetwork deal was found by Cheapflights users on 3/16. 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.
Thu 4/2310:45 am
BOS
-
YYZ
Nonstop1h 53m
Air Canada
Mon 4/276:15 am
YYZ
-
BOS
1 stop3h 34m
Air Canada
Deal found 3/16$239

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 March 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$225
(Trip.com)

One-way from

$96
(Super.com)
Provider with most accurate pricing for Portland-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Toronto (YTO) flights.
Search Deals
From Maine to Ontario
Search Deals
One-way flight from 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 2,558,603 searches. Data last updated March 18, 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

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Sat 4/11

7:00 am-11:29 am

1 stop4h 29m

Ottawa

Thu 4/16

8:40 am-12:40 pm

1 stop4h 00m

$267

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Wed 6/3

10:05 am-12:00 pm

Nonstop1h 55m

Toronto Pearson Intl

Sat 6/6

7:25 am-9:05 am

Nonstop1h 40m

$289

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sun 7/5

3:25 pm-6:58 pm

1 stop3h 33m

Toronto Island

Fri 7/10

1:00 pm-2:41 pm

Nonstop1h 41m

$296

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Mon 6/1

4:45 pm-6:15 pm

Nonstop1h 30m

Montreal Pierre Elliott Trudeau Intl

Tue 6/2

6:30 am-10:31 am

1 stop4h 01m

$298

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Fri 4/24

6:00 pm-11:43 pm

1 stop5h 43m

Toronto Pearson Intl

Thu 4/30

6:00 am-11:25 am

1 stop5h 25m

$304

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Mon 4/27

1:00 pm-6:09 pm

1 stop5h 09m

Toronto Pearson Intl

Wed 4/29

6:00 am-12:22 pm

1 stop6h 22m

$304

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sun 6/28

3:25 pm-7:44 pm

1 stop4h 19m

Toronto Pearson Intl

Sun 7/5

3:55 pm-5:35 pm

Nonstop1h 40m

$305

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 4/22

7:00 am-8:54 am

Nonstop1h 54m

Toronto Island

Tue 4/28

2:05 pm-6:12 pm

1 stop4h 07m

$312

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Fri 5/1

3:32 pm-10:06 pm

1 stop6h 34m

Montreal Pierre Elliott Trudeau Intl

Sun 5/3

6:00 am-10:20 am

1 stop4h 20m

$313

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Fri 6/19

4:45 pm-5:34 am

2 stops12h 49m

Toronto Pearson Intl

Sun 6/21

3:40 pm-8:55 pm

1 stop5h 15m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 60 resultsSorted by cheapest first
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2
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6

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.

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 March 18, 2026.
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
7.1
Good
11,468 reviews

Comfort

7.2

Food

6.4

Boarding

7.5

Overall

7.1

Entertainment

6.9

Crew

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes
American Airlines
7.1
Good
11,468 reviews
American Airlines
7.1
Good
11,468 reviews

Comfort

7.2

Food

6.4

Boarding

7.5

Overall

7.1

Entertainment

6.9

Crew

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes

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, Delta, and United Airlines fly from Maine to Region of Ontario in about 4h 05m. The time it takes to get you to your destination can typically vary by up to 33m. There are 444 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.

  • 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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