What is the cheapest airline that flies from Ontario to Maine?

Porter Airlines, United Airlines, and American Airlines are the most popular carriers operating from Ontario to Maine

How many flights depart from Region of Ontario to Maine on average per week?

252 flights are operational weekly from Region of Ontario to Maine as of May 2026. The most popular departure day for this route is Thu, with 17% of flights per week taking off on this day.

When did momondo last update prices for flights from Ontario to Maine?

Prices for flights from Ontario to Maine are refreshed on a daily basis.

How many operators does momondo search for flights from Ontario to Maine?

There are 4 operators available for flights from Ontario to Maine as of May 2026.

How old do you have to be to fly from Ontario to Maine?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario to Maine.

What documentation or ID do you need to fly to Maine?

The necessary travel and health documents for your Maine trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

C$ 181 Cheap Flights from Ontario to Maine in 2026

1 adult

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Find the cheapest flights from Ontario to Maine

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

YUL

BOS

1h 25mdirect

10:40 a.m. - 12:03 p.m.

BOS

YUL

1h 23mdirect

C$ 271Air Canada

Thu, 18 Jun - Mon, 22 Jun

1:10 p.m. - 2:47 p.m.

YUL

BOS

1h 37mdirect

5:10 a.m. - 10:21 a.m.

BOS

YUL

5h 11m

1 stop

C$ 273Air Canada

Thu, 4 Jun - Sun, 7 Jun

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

YUL

BOS

1h 25mdirect

6:55 p.m. - 11:31 p.m.

BOS

YUL

4h 36m

1 stop

C$ 274Air Canada

Fri, 12 Jun - Fri, 12 Jun

7:20 p.m. - 8:55 p.m.

YUL

BOS

1h 35mdirect

4:45 p.m. - 6:15 p.m.

BOS

YUL

1h 30mdirect

C$ 286Porter Airlines

Sat, 20 Jun - Mon, 20 Jul

1:00 p.m. - 2:41 p.m.

YTZ

BOS

1h 41mdirect

8:25 p.m. - 10:12 p.m.

BOS

YTZ

1h 47mdirect

C$ 306Porter Airlines

Fri, 29 May - Mon, 1 Jun

6:00 a.m. - 1:58 p.m.

YYZ

PWM

7h 58m

1 stop

1:18 p.m. - 9:19 p.m.

PWM

YYZ

8h 01m

1 stop

C$ 607Delta

Tue, 26 May - Fri, 29 May

6:00 a.m. - 12:43 a.m.

YYZ

PWM

18h 43m

1 stop

1:18 p.m. - 9:19 p.m.

PWM

YYZ

8h 01m

1 stop

C$ 619Delta

Fri, 29 May - Mon, 1 Jun

2:35 p.m. - 11:51 p.m.

YYZ

PWM

9h 16m

1 stop

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

PWM

YYZ

5h 49m

1 stop

C$ 632United Airlines

Sat, 13 Jun - Tue, 16 Jun

2:20 p.m. - 7:27 p.m.

YUL

PWM

5h 07m

1 stop

7:16 p.m. - 12:13 a.m.

PWM

YUL

4h 57m

1 stop

C$ 648United Airlines

Tue, 2 Jun - Sat, 6 Jun

6:45 a.m. - 3:55 p.m.

YUL

PWM

9h 10m

2 stops

12:15 p.m. - 8:39 a.m.

PWM

YUL

20h 24m

1 stop

C$ 729WestJet

Tue, 9 Jun - Sat, 13 Jun

Air Canada flights from Region of Ontario to Maine

Our best Air Canada deals on Region of Ontario to Maine flight tickets

Air Canada

18 Jun

YUL8:25 a.m.Montreal Pierre Elliott Trudeau Intl

1h 25m

BOS9:50 a.m.Boston Logan Intl

22 Jun

BOS10:40 a.m.Boston Logan Intl

1h 23m

YUL12:03 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 271

Air Canada

4 Jun

YUL1:10 p.m.Montreal Pierre Elliott Trudeau Intl

1h 37m

BOS2:47 p.m.Boston Logan Intl

7 Jun

BOS5:10 a.m.Boston Logan Intl

5h 11m

1 stop

YUL10:21 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 273

Air Canada

12 Jun

YUL8:20 a.m.Montreal Pierre Elliott Trudeau Intl

1h 25m

BOS9:45 a.m.Boston Logan Intl

12 Jun

BOS6:55 p.m.Boston Logan Intl

4h 36m

1 stop

YUL11:31 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 274

Porter Airlines flights from Region of Ontario to Maine

Our best Porter Airlines deals on Region of Ontario to Maine flight tickets

Porter Airlines

20 Jun

YUL7:20 p.m.Montreal Pierre Elliott Trudeau Intl

1h 35m

BOS8:55 p.m.Boston Logan Intl

20 Jul

BOS4:45 p.m.Boston Logan Intl

1h 30m

YUL6:15 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 286

Porter Airlines

4 Jun

YUL11:00 a.m.Montreal Pierre Elliott Trudeau Intl

6h 35m

1 stop

BOS5:35 p.m.Boston Logan Intl

7 Jun

BOS4:45 p.m.Boston Logan Intl

1h 30m

YUL6:15 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 300

Porter Airlines

11 Jun

YUL10:35 a.m.Montreal Pierre Elliott Trudeau Intl

6h 11m

1 stop

BOS4:46 p.m.Boston Logan Intl

14 Jun

BOS4:45 p.m.Boston Logan Intl

1h 30m

YUL6:15 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 301

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

MontrealBoston

YUL - BOS

YULBOS

Montreal Pierre Elliott Trudeau Intl

Thu 18/6

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

Nonstop1h 25m

Boston Logan Intl

Mon 22/6

10:40 a.m.-12:03 p.m.

Nonstop1h 23m

C$ 271

MontrealBoston

YUL - BOS

YULBOS

Montreal Pierre Elliott Trudeau Intl

Thu 4/6

1:10 p.m.-2:47 p.m.

Nonstop1h 37m

Boston Logan Intl

Sun 7/6

5:10 a.m.-10:21 a.m.

1 stop5h 11m

C$ 273

MontrealBoston

YUL - BOS

YULBOS

Montreal Pierre Elliott Trudeau Intl

Fri 12/6

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

Nonstop1h 25m

Boston Logan Intl

Fri 12/6

6:55 p.m.-11:31 p.m.

1 stop4h 36m

C$ 274

MontrealBoston

YUL - BOS

YULBOS

Montreal Pierre Elliott Trudeau Intl

Sat 20/6

7:20 p.m.-8:55 p.m.

Nonstop1h 35m

Boston Logan Intl

Mon 20/7

4:45 p.m.-6:15 p.m.

Nonstop1h 30m

C$ 286

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Fri 29/5

1:00 p.m.-2:41 p.m.

Nonstop1h 41m

Boston Logan Intl

Mon 1/6

8:25 p.m.-10:12 p.m.

Nonstop1h 47m

C$ 306

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 26/5

6:00 a.m.-1:58 p.m.

1 stop7h 58m

Portland

Fri 29/5

1:18 p.m.-9:19 p.m.

1 stop8h 01m

C$ 607

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Fri 29/5

6:00 a.m.-12:43 a.m.

1 stop18h 43m

Portland

Mon 1/6

1:18 p.m.-9:19 p.m.

1 stop8h 01m

C$ 619

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Sat 13/6

2:35 p.m.-11:51 p.m.

1 stop9h 16m

Portland

Tue 16/6

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

1 stop5h 49m

C$ 632

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Tue 2/6

2:20 p.m.-7:27 p.m.

1 stop5h 07m

Portland

Sat 6/6

7:16 p.m.-12:13 a.m.

1 stop4h 57m

C$ 648

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Tue 9/6

6:45 a.m.-3:55 p.m.

2 stops9h 10m

Portland

Sat 13/6

12:15 p.m.-8:39 a.m.

1 stop20h 24m

C$ 729

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Region of Ontario to Maine

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Maine?

In general, December is the cheapest month to fly from Region of Ontario to Maine. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 0. If you aren’t able to travel to Maine during the month of December, then flying in May is also cheap. Prices for this month can be found on momondo for an average of C$ 0.

Can stopping save me money on Region of Ontario to Maine flights?

You could potentially save up to 12% on your flight if you consider stops on a Region of Ontario to Maine flight.

Cheap Region of Ontario to Maine flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Maine

Fastest flight time	1h 25m
Direct flights	Every day
Airports in Maine	49 airports

The fastest flight from Region of Ontario to Maine takes 1h 25m

Direct flights go from Region of Ontario to Maine every day.

There are 49 airports in Maine. From Region of Ontario there are direct flights to Boston Logan Intl (BOS).

Search flight deals

Frequently asked questions about flying from Ontario to Maine

When did momondo last update prices for flights from Ontario to Maine?
Prices for flights from Ontario to Maine are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario to Maine?
There are 4 operators available for flights from Ontario to Maine as of May 2026.
How old do you have to be to fly from Ontario to Maine?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario to Maine.
What documentation or ID do you need to fly to Maine?
The necessary travel and health documents for your Maine trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Region of Ontario to Maine

Compare and see reviews for airlines that fly from Region of Ontario to Maine with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom C$ 553	Free Cancellation	Rating 7.4 9,707 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Maine?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Maine . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Maine with flexible booking policies on momondo?

All flight searches from Ontario to Maine on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Maine?

momondo helps you find the best flight between Ontario and Maine by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ontario to Maine right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Maine, momondo offers a useful price alert feature which will track prices for flights to Maine from Ontario and alert you when they change.