$116 Find Cheap Flights from Ontario to Maine

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Useful Info
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Good to know

Low seasonDecember
High seasonJuly
Cheapest flight$116
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from Toronto Island to Boston

FAQs for booking flights from Ontario to Maine

  • How does KAYAK find such low prices on flights from Ontario to Maine?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Maine.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Maine?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Maine is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Maine?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ontario to Maine with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Maine?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ontario to Maine up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Maine?

    Based on KAYAK data, the cheapest day to fly to Maine is Saturday where round-trip tickets can be as cheap as $743. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $1,023 on average.

  • What is the cheapest time of day to fly to Maine?

    The cheapest time of day to fly to Maine is generally in the evening, when round-trip flights cost $487 on average. Morning departures are around 34% more expensive than evening flights, on average. The most expensive time of day to fly to Maine is generally in the morning, which is peak travel time and where the average cost of a ticket is $653.

  • What is the cheapest month to fly from Ontario to Maine?

    The cheapest month for flights from Ontario to Maine is January, when tickets cost $263 (return) on average. On the other hand, the most expensive months are April and July, when the average cost of round-trip tickets is $818 and $486 respectively.

  • How long is the flight to Maine?

    An average nonstop flight from Ontario to Maine takes 9h 22m, covering a distance of 460 miles. The shortest route is Montreal Pierre Elliott Trudeau Intl Airport (YUL) to Boston (BOS) with an average flight time of 1h 25m.

  • What are the most popular destinations in Maine?

    Based on KAYAK flight searches, the most popular destination is Boston (97% of total searches to Maine). The next most popular destinations are Portland (2%) and Bangor (1%). Searches for flights to Augusta (0%), to Bar Harbor (0%) and to Rockland (0%) are also popular.

Top airline flying from Ontario to Maine

Need help choosing which airline to fly with from Ontario to Maine? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8708 reviews
8.1Crew
7.1Entertainment
7.7Boarding
7.3Comfort
6.6Food
Airline reviews

Very nice and clean plane. Transit time between flights was tight though

8.0 ExcellentAnonymous, May 2025YUL - IAD
Read more United Airlines reviews

Very nice and clean plane. Transit time between flights was tight though

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

So far so good but food and entertainment are not available for this flight

Plane temperature was comfortable (not to hot) when boarding and waiting for takeoff.

Michael, our FA was very attentive, even finding me a chocolate brownie from economy class when the dessert selections were all dairy based. ( intolerant, not allergic so don’t usually need to order dairy free)

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

It was my first time with United Airlines and I would say it was very good experience and best of all the flights were on time. Will definitely fly with United Airlines next time.

headphone jack didnt work for the first flight and not much variety

Plane 3 hours late. Missed connection. No help from gate staff. App horrible. Lost connection repeatedly. No service desk. Finally got help from young girl driving cart.

Not as good as expected Air Can needs to improve totally rated on internet as worst

Book cheap flights from Ontario to Maine

Recent round-trip flight deals

5/30Fri
1 stopPorter Airlines
6h 08mYTZ-BOS
6/2Mon
1 stopPorter Airlines
3h 47mBOS-YTZ
$191
5/30Fri
nonstopPorter Airlines
1h 41mYTZ-BOS
6/1Sun
nonstopPorter Airlines
1h 49mBOS-YTZ
$192
6/9Mon
1 stopAmerican Airlines
6h 18mYYZ-BOS
6/10Tue
1 stopAmerican Airlines
4h 15mBOS-YYZ
$207
7/15Tue
1 stopAmerican Airlines
5h 41mYYZ-BOS
7/16Wed
1 stopAmerican Airlines
5h 55mBOS-YYZ
$220
5/30Fri
nonstopAir Canada
1h 43mYYZ-BOS
6/2Mon
nonstopAir Canada
1h 54mBOS-YYZ
$227
6/19Thu
nonstopAir Canada
1h 43mYYZ-BOS
6/23Mon
nonstopAir Canada
1h 55mBOS-YYZ
$228
5/22Thu
2 stops
10h 33mYYZ-BOS
5/25Sun
1 stop
4h 49mBOS-YYZ
$246
5/22Thu
2 stops
10h 33mYYZ-BOS
5/25Sun
nonstop
1h 54mBOS-YYZ
$248
9/15Mon
nonstopUnited Airlines
1h 44mYYZ-BOS
9/19Fri
nonstopUnited Airlines
1h 56mBOS-YYZ
$253
9/6Sat
nonstopUnited Airlines
1h 42mYYZ-BOS
9/13Sat
nonstopUnited Airlines
1h 55mBOS-YYZ
$254

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Recent one-way flight deals

5/22Thu
1 stopPorter Airlines
6h 08mYTZ-BOS
$116
5/22Thu
nonstopPorter Airlines
1h 41mYTZ-BOS
$117
6/3Tue
2 stops
25h 14mYYZ-BOS
$135
5/24Sat
1 stopAir Canada
6h 07mYTZ-BOS
$138
6/3Tue
nonstopAir Canada
1h 43mYYZ-BOS
$139
6/24Tue
2 stops
29h 36mYYZ-BOS
$146
5/22Thu
1 stopUnited Airlines
5h 34mYYZ-BOS
$154
5/28Wed
2 stopsUnited Airlines
7h 15mYYZ-BOS
$158
5/19Mon
nonstopAir Transat
1h 41mYTZ-BOS
$166
5/19Mon
nonstopAir Transat
1h 41mYTZ-BOS
$170

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Last minute flights from Ontario to Maine

Last minute flight, train and bus deals

5/10Sat
multi-stop
25h 14mYYZ-BOS
5/17Sat
multi-stop
30h 45mBOS-YYZ
$367
5/9Fri
nonstopPorter Airlines
1h 41mYTZ-BOS
5/18Sun
nonstopPorter Airlines
1h 49mBOS-YTZ
$380
5/10Sat
multi-stopAmerican Airlines
8h 56mYYZ-BOS
5/11Sun
multi-stopAmerican Airlines
5h 33mBOS-YYZ
$387
5/8Thu
multi-stopAir Canada
5h 42mYTZ-BOS
5/20Tue
multi-stopAir Canada
5h 42mBOS-YTZ
$420
5/8Thu
multi-stopAir Canada
4h 57mYYZ-BOS
5/20Tue
nonstopAir Canada
1h 54mBOS-YYZ
$427
5/9Fri
multi-stopAmerican Airlines
6h 50mYYZ-BOS
5/18Sun
multi-stopAmerican Airlines
4h 30mBOS-YYZ
$434
5/10Sat
nonstopUnited Airlines
1h 40mYYZ-BOS
5/17Sat
multi-stopUnited Airlines
4h 17mBOS-YYZ
$501
5/10Sat
multi-stopDelta
5h 55mYUL-BOS
5/11Sun
multi-stopDelta
4h 04mBOS-YUL
$532
5/8Thu
multi-stopUnited Airlines
4h 12mYYZ-BOS
5/11Sun
multi-stopUnited Airlines
4h 39mBOS-YYZ
$563
5/9Fri
multi-stopDelta
9h 31mYUL-BOS
5/11Sun
multi-stopDelta
5h 04mBOS-YUL
$582

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Everything you need to know for your flight to Maine

Cabin class types available on flights to Ontario

Cabin classes available on flights to Ontario. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to Maine
Business Class flights to Maine
Prem Econ Class flights to Maine
Economy Class flights to Maine

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