$71 Find Cheap Flights from Maine to Ontario

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Low seasonJanuary
High seasonJuly
Cheapest flight$71
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Boston to Toronto Island

FAQs for booking flights from Maine to Ontario

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

    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 Maine to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Maine to Ontario 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 Maine to Ontario?

    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 Maine to Ontario 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 Maine to Ontario?

    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 Maine to Ontario 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 Ontario?

    Based on KAYAK data, the cheapest day to fly to Ontario is Saturday where round-trip tickets can be as cheap as $286. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $591 on average.

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

    The cheapest time of day to fly to Ontario is generally in the evening, when round-trip flights cost $457 on average. Morning departures are around 9% more expensive than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is $500.

  • How long is the flight to Ontario?

    An average nonstop flight from Maine to Ontario takes 7h 00m, covering a distance of 429 miles. The shortest route is Boston (BOS) to Montreal Pierre Elliott Trudeau Intl Airport (YUL) with an average flight time of 1h 25m.

Reviews of the top 3 airlines serving from Maine to Ontario

 
Need help choosing which airline to fly with from Maine to Ontario? 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.
8.0
DeltaOverall score based on 7974 reviews
7.9Entertainment
7.3Food
8.2Boarding
8.5Crew
7.9Comfort
Airline reviews

From Atlanta to Savannah - flight connection was way to short (we weren't even late landing ) and flight was already boarding when we landed - we were told we were the last on board and so we had to gate check our bags. Once we got on the plane, there were at least seven open bag spots so that was unnecessary delay. There should be better communication between the gate agent and the crew.

6.0 GoodBrenda, Jul 2025SAV - ATL
Read more Delta reviews

From Atlanta to Savannah - flight connection was way to short (we weren't even late landing ) and flight was already boarding when we landed - we were told we were the last on board and so we had to gate check our bags. Once we got on the plane, there were at least seven open bag spots so that was unnecessary delay. There should be better communication between the gate agent and the crew.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

Flight was an hour late, who knows why. It was OK, nothing outstanding.

Only not having an assigned seat was an issue. Rest was great

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Boarding was organised and relaxed. Crew were fantastic! Seats were lacking padding causing butt pain and stiffness.

I like for how they process during check in. It was very smoothly.

The flight delay in Dallas created a domino effect that impacted all of the connecting flights. It also increased the number of connections. I missed my flight from Casablanca to Marrakech because of the tight turnaround when landing in Casablanca. . CMN airport was understaffed. Only one person could help while other employees were just watching him. It was an extremely frustrating situation. People were crying and slamming their palms on the counter when speaking to the customer service provider, Allabough (man’s name?). Allabough couldn’t change my flight in the system. simultaneously, I was on the call with America. Airlines customer service rep named Solomon that said he couldn’t change it either. So, I took a ONYA voyages train to from Casablanca to Marrakech to get there on Friday June 26. This was unpredictable trip.

The flight delay in Dallas created a domino effect that impacted all connecting flights, leading to an increase in the number of connections. As a result, I missed my flight from Casablanca to Marrakech due to the tight turnaround when landing in Casablanca. CMN Airport was understaffed; only one employee was available to assist passengers while others just stood by and watched. It was an extremely frustrating situation. Many passengers were crying and banging their hands on the counter while talking to customer service representative Allabough. Unfortunately, Allabough couldn’t change my flight in the system. At the same time, I was on the phone with an American Airlines customer service representative named Solomon, who said he couldn’t make the change either. So, I decided to take an ONYA Voyages train from Casablanca to Marrakech to reach my destination on Friday, June 26. It turned out to be an unpredictable trip.

The flight was fine and the crew awesome. The problem is ORD and AA. Computers went down, ORD fell apart and a 40 min flight turned into a 3 hour trip. Guess the answer is to not try and fly to ORD after noon. But, as I said, crew was awesome and did everything they could to lesson the flight time.

Almost a 6 hour flight and the only food option is a cheese plate… and chips. Also how is it there are no options for texting on American. I’ll be going back to delta and united.

This flight never occurred because AA couldn’t get their act together.

Terrible. Cancelled my original flight. It made getting a boarding pass difficult. The AA employee (in a loud voice, so everyone around could hear) griped at me for not getting a boarding pass 24 hours before. I asked how I was supposed to do that when I had no idea what flight I was going to be on. She said (loudly), “Talk to AA customer service, not me!” I could certainly tell serving customers was not important to her. Our new flight was set to a completely different city. We had to change our rental car, and the price went way up. It took 2-1/2 hours to get checked in. By then our new flight had left. We ended up on stand by and had to split up the family to get to our destination. It cost us the whole first day of the trip. AA needs to employ people who actually care about doing a good job. I suppose those people are getting harder to find, but atleast try.

Am still mad at American airlines. You should know it's us travel nurses who are your customers and you treat us like nonsense it's not ok. American airlines took my money, no refund for whatsoever. A trip that was of 466 and I paid 466 and 833 then they chose for me where to sit and refund my seat choices and gave me expensive seats for 79 USD. Kayak doesn't help at all after booking you are on your own. Skyscanner is better

Bad food, small seats that didn’t recline. I thought I was buying a quantas ticket so I feel like I got scammed

This was a horrible experience. For a first class experience, my chair was held together by 3M tape - and I have a photo. The crew weren’t very attentive, somewhat dismissive and forgot my drink and snack, the chair reclined about 3 inches on a 6-hour cross country flight. I was also not informed that there was no lounge available in Newark airport because of renovations, so all around this was one of the worst experiences and I would actively avoid both American and Alaska Air going forward.

The flight was fine but the 8 hour delay in Chicago was awful - 5 gate changes and repeated delays without an explanation. No vouchers. Nothing.

The flight attendants were super! They created a cosy and warm flight atmosphere!

Not only was the flight delayed more than 3 hours but also there was no internet or movies on the flight. It was Flair/Spirit quality of experience at Westjet prices

West Jet flight was cancelled and I was not notified. I found out when I tried to check in on-line. Spent 4 hours on the phone with West Jet and Just Fly trying to figure what happened.

Only issue was checking in took over an hour and was very stressful. It all worked out, but we weren't sure for a while.

We didn’t make the flight due to Delta’s check in line moving too slow.

It was good, flight was on time, boarding was smooth and done in zones, food was good too but there was no form of entertainment. Luggage’s were intact. So an overall good flight

Flight was delayed 3 times. Then cancelled due to pilot being timed out. They refused hotel vouchers. Gate attendants were very rude and could not help you at all.

No access to any entertainment No food other than a cookie or pretzels even tho flight was over the supper hour Seats very close together and very little leg room Staff was very good

The cancelation of my flight from Toronto to Edmonton without any solution given to me for my next flight. Very poor connection from Toronto to Edmonton

Too squished in seats. I'm 110 lbs and 5'6....can't imagine being any bigger and flying

Book cheap flights from Maine to Ontario

Recent round-trip flight deals

9/3Wed
1 stopPorter Airlines
3h 33mBOS-YTZ
9/7Sun
1 stopPorter Airlines
5h 58mYTZ-BOS
$204
9/3Wed
nonstopPorter Airlines
1h 49mBOS-YTZ
9/7Sun
1 stopPorter Airlines
5h 58mYTZ-BOS
$206
9/22Mon
1 stop
5h 45mBOS-YTZ
9/26Fri
nonstop
1h 41mYTZ-BOS
$210
7/15Tue
nonstop
1h 49mBOS-YTZ
7/22Tue
nonstop
1h 41mYTZ-BOS
$249
7/22Tue
1 stopAmerican Airlines
4h 15mBOS-YYZ
7/22Tue
1 stopAmerican Airlines
7h 46mYYZ-BOS
$266
8/5Tue
1 stopAmerican Airlines
20h 05mBOS-YUL
8/6Wed
1 stopAmerican Airlines
18h 25mYUL-BOS
$315
9/25Thu
1 stopWestJet
12h 15mBOS-YOW
9/29Mon
1 stopWestJet
11h 40mYOW-BOS
$330
9/4Thu
1 stopDelta
8h 35mPWM-YYZ
9/7Sun
1 stopDelta
7h 52mYYZ-PWM
$398
8/21Thu
1 stopDelta
10h 04mPWM-YYZ
8/30Sat
1 stopDelta
18h 44mYYZ-PWM
$420
10/2Thu
2 stopsWestJet
14h 57mPWM-YYZ
10/5Sun
2 stopsWestJet
28h 37mYYZ-PWM
$776

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Recent one-way flight deals

10/15Wed
nonstopAir Transat
1h 49mBOS-YTZ
$71
9/16Tue
nonstopPorter Airlines
1h 28mBOS-YOW
$71
8/14Thu
nonstopAir Canada
1h 55mBOS-YYZ
$90
8/14Thu
nonstopAir Canada
1h 55mBOS-YYZ
$91
7/14Mon
1 stop
17h 26mBOS-YYZ
$100
7/26Sat
1 stop
11h 43mBOS-YTZ
$116
8/15Fri
2 stopsAmerican Airlines
9h 56mBOS-YUL
$155
7/23Wed
2 stopsDelta
11h 08mBOS-YUL
$156
8/9Sat
2 stopsDelta
13h 08mBOS-YUL
$162
9/16Tue
1 stopAmerican Airlines
26h 53mPWM-YUL
$202

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Last minute flights from Maine to Ontario

Last minute flight, train and bus deals

7/7Mon
nonstopPorter Airlines
1h 49mBOS-YTZ
7/11Fri
nonstopPorter Airlines
1h 41mYTZ-BOS
$223
7/7Mon
nonstopPorter Airlines
1h 49mBOS-YTZ
7/8Tue
nonstopPorter Airlines
1h 41mYTZ-BOS
$246
7/7Mon
nonstop
1h 49mBOS-YTZ
7/14Mon
nonstop
1h 41mYTZ-BOS
$270
7/7Mon
nonstopUnited Airlines
1h 55mBOS-YYZ
7/21Mon
nonstopUnited Airlines
1h 43mYYZ-BOS
$275
7/7Mon
multi-stopUnited Airlines
5h 55mBOS-YYZ
7/10Thu
multi-stopUnited Airlines
13h 54mYYZ-BOS
$300
7/7Mon
nonstop
1h 49mBOS-YTZ
7/11Fri
multi-stop
27h 36mYTZ-BOS
$336
7/7Mon
multi-stopDelta
5h 27mBOS-YUL
7/11Fri
multi-stopDelta
4h 29mYUL-BOS
$362
7/7Mon
multi-stopDelta
5h 27mBOS-YUL
7/14Mon
multi-stopDelta
8h 14mYUL-BOS
$413
7/3Thu
multi-stopAmerican Airlines
26h 43mPWM-YUL
7/6Sun
multi-stopAmerican Airlines
13h 24mYUL-PWM
$787
7/3Thu
multi-stopAmerican Airlines
20h 07mPWM-YUL
7/6Sun
multi-stopAmerican Airlines
18h 16mYUL-PWM
$797

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Everything you need to know for your flight to Ontario

Cabin class types available on flights to Maine

Cabin classes available on flights to Maine. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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