C$ 149 Find Cheap Flights from Ontario to Maine

1 adult
1 adult, Economy

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Useful Info

Good to know

Low seasonDecember
Cheapest flightC$ 149
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly and prices are also 25% 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 travellers 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.

  • How many airports are there in Maine?

    There are 6 airports in Maine. The busiest airport is Portland Airport (PWM), with 61% of all flights arriving there.

  • What is the cheapest day to fly to Maine?

    Based on KAYAK data, the cheapest day to fly to Maine is Tuesday when round-trip tickets can be as cheap as C$ 555. On the other hand, the most expensive day to fly is Sunday, when round-trip prices are C$ 637 on average.

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

    The cheapest time of day to fly to Maine is generally at night, when round-trip flights cost C$ 402 on average. Morning departures are around 9% 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 C$ 453.

  • 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 C$ 363 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is C$ 697 and C$ 658 respectively.

  • How long is the flight to Maine?

    An average direct flight from Ontario to Maine takes 7h 15m, covering a distance of 1243 km. 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 (98% of total searches to Maine). The next most popular destinations are Portland (2%) and Presque Isle (0%). Searches for flights to Bar Harbor (0%), to Rockland (0%), and to Augusta (0%) are also popular.

Reviews of the top airlines 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 8900 reviews
7.7Boarding
6.6Food
7.1Entertainment
7.3Comfort
8.1Crew
Airline reviews

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

10.0 ExcellentAnonymous, Jul 2025YYZ - SFO
Read more United Airlines reviews

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

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.

Staff were courteous and helpful. The only negative was the flight delays (which are usually unavoidable) and the high baggage price.

Absolutely terrible, from the customer service to boarding the plane. On the phone, there was some mishaps with getting in my correct date and they did not help me retrieve a refund or any assistance. I’m gonna be reporting to all my followers and family around the region of Los Angeles to New York.

Could not fly out of Canada. Called airlines on Monday, July 14th. Tried to cancel the flight 7 days away, but they said I could not cancel and there would be no refund.

A little disorganized but overall good. The Delta flights were great though

Price was good. Entertainment and food could have been better

Staff was nice, helpful, and did all they could. I understand economy seats are bottom of the barrel, but we're crammed in there with others in our row.

Arrival at Comox from, London,ON 6 hours later... No bueano

Our flight info was lost as the original booking was with westjet... almost missed our outbound flight trying to get it corrected. Inbound we had to reschedule completely as they didn't have our information and resold our seats ending up getting home much later than planned. The confirmation numbers we received from justfly for westjet didn't help anything with delta as they said we needed a delta confirmation which we never received. I talked with justfly and they said it's the airlines problem and with westjet and they said it is the 3rd party bookers issue.... so, not fun

Generally good. However. The flight left 30 mins behind schedule with no reason given.

Flight delayed, missed my pick-up had to Uber, plus missed dinner and medication, so sad!

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.

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