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Cheap flights from Maine to Ontario from C$ 154

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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
26 Jan — 2 Feb1
1 adult

Cheap flight deals from Maine to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Maine (USME) to Ontario (CAON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 January 2025.

Round-trip from

C$ 311

One-way from

C$ 154
4/2-11/2
  • 4/2-11/2
  • 2 total stops
  • 26h 13m total
  • Maine to Ontario
Search Deals
5/3
  • 5/3
  • 1 total stop
  • 9h 01m total
  • Maine to Ontario
Search Deals

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 21 January 2025.

Tue 4/26:00 a.m.BOS - YUL
1 stop8h 55mMultiple Airlines
Tue 11/23:55 p.m.YUL - BOS
1 stop17h 18mMultiple Airlines
Deal found 21/1C$ 311
Sat 8/27:25 p.m.BOS - YUL
1 stop6h 28mAir Canada
Wed 12/26:35 p.m.YUL - BOS
Nonstop1h 28mAir Canada
Deal found 21/1C$ 318
Tue 11/311:14 a.m.BOS - YYZ
1 stop12h 58mMultiple Airlines
Wed 12/37:40 a.m.YYZ - BOS
1 stop8h 52mMultiple Airlines
Deal found 20/1C$ 325
Thu 6/32:05 p.m.BOS - YTZ
Nonstop1h 59mPorter Airlines
Thu 13/36:40 p.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 20/1C$ 327
Thu 13/210:20 a.m.BOS - YTZ
Nonstop1h 59mMultiple Airlines
Sat 15/21:55 p.m.YTZ - BOS
Nonstop1h 35mMultiple Airlines
Deal found 21/1C$ 337
Thu 13/27:05 a.m.BOS - YOW
1 stop4h 09mPorter Airlines
Sun 16/25:00 p.m.YOW - BOS
Nonstop1h 35mPorter Airlines
Deal found 21/1C$ 348
Thu 20/210:20 a.m.BOS - YUL
1 stop6h 25mPorter Airlines
Mon 24/24:00 p.m.YUL - BOS
1 stop4h 20mPorter Airlines
Deal found 21/1C$ 354
Wed 26/25:40 a.m.BOS - YOW
1 stop12h 15mMultiple Airlines
Thu 27/211:50 a.m.YOW - BOS
1 stop3h 45mMultiple Airlines
Deal found 21/1C$ 376
Thu 20/210:25 a.m.BOS - YYZ
Nonstop2h 00mAir Canada
Thu 20/28:55 p.m.YYZ - BOS
Nonstop1h 42mAir Canada
Deal found 21/1C$ 402
Fri 21/33:40 p.m.BOS - YTZ
1 stop6h 10mAir Canada
Sun 23/33:25 p.m.YTZ - BOS
1 stop5h 19mAir Canada
Deal found 20/1C$ 425
Thu 20/210:50 a.m.BOS - YUL
Nonstop1h 25mUnited Airlines
Mon 24/28:40 a.m.YUL - BOS
Nonstop1h 29mUnited Airlines
Deal found 21/1C$ 427
Tue 4/25:44 a.m.PWM - YYZ
1 stop4h 35mAmerican Airlines
Tue 4/21:55 p.m.YYZ - PWM
2 stops10h 02mAmerican Airlines
Deal found 21/1C$ 446

Find flights from Maine to Ontario within your budget

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 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Tue 4/2

6:00 a.m.-2:55 p.m.

1 stop8h 55m

Montreal Pierre Elliott Trudeau Intl

Tue 11/2

3:55 p.m.-9:13 a.m.

1 stop17h 18m

C$ 311

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Sat 8/2

7:25 p.m.-1:53 a.m.

1 stop6h 28m

Montreal Pierre Elliott Trudeau Intl

Wed 12/2

6:35 p.m.-8:03 p.m.

Nonstop1h 28m

C$ 318

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Tue 11/3

11:14 a.m.-12:12 a.m.

1 stop12h 58m

Toronto Pearson Intl

Wed 12/3

7:40 a.m.-4:32 p.m.

1 stop8h 52m

C$ 325

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Tue 18/2

7:05 a.m.-9:04 a.m.

Nonstop1h 59m

Toronto Island

Fri 21/2

1:55 p.m.-3:35 p.m.

Nonstop1h 40m

C$ 331

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 13/2

10:20 a.m.-12:19 p.m.

Nonstop1h 59m

Toronto Island

Sat 15/2

1:55 p.m.-3:30 p.m.

Nonstop1h 35m

C$ 337

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Thu 13/2

7:05 a.m.-11:14 a.m.

1 stop4h 09m

Ottawa

Sun 16/2

5:00 p.m.-6:35 p.m.

Nonstop1h 35m

C$ 348

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Thu 20/2

7:05 a.m.-11:15 a.m.

1 stop4h 10m

Montreal Pierre Elliott Trudeau Intl

Mon 24/2

8:55 a.m.-3:30 p.m.

1 stop6h 35m

C$ 354

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Wed 26/2

5:40 a.m.-5:55 p.m.

1 stop12h 15m

Ottawa

Thu 27/2

11:50 a.m.-3:35 p.m.

1 stop3h 45m

C$ 376

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 7/3

7:00 a.m.-11:50 a.m.

1 stop4h 50m

Toronto Island

Fri 14/3

8:50 a.m.-2:58 p.m.

2 stops6h 08m

C$ 391

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 20/2

10:25 a.m.-12:25 p.m.

Nonstop2h 00m

Toronto Pearson Intl

Thu 27/2

8:00 a.m.-9:42 a.m.

Nonstop1h 42m

C$ 402

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/1

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.

Travel insights for flights from Maine to Ontario

Get recent, data-driven insights about flights from Maine to Ontario including ideal travel times, pricing trends, and more.

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 21 January 2025.

When flying from Maine to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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 21 January 2025.
To help decide which airline to fly from Maine to Ontario, see what other customers have to say about American Airlines, WestJet and Air Canada. 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.
Delta
8.0
Very good
8,521 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines
7.9
Good
277 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Transat
7.8
Good
381 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aeromexico
7.5
Good
1,849 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,985 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    For one-way options, check prices for Porter Airlines. According to our data, you can fly for as low as C$ 167. Users have also found prices from C$ 189 and C$ 194 on Air Canada and Delta, respectively.

  • 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 C$ 168). Flying from Maine to Region of Ontario in July is currently the most expensive (average of C$ 258). 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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How does Cheapflights help users find flights from Maine to Ontario?

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