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$158 Find cheap flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Montreal departing on 5/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 5/26
Sun 6/2

Search hundreds of travel sites at once for deals on flights to Montreal

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Montreal, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Montreal, as well as popular online travel agencies
In the last 7 days travelers have searched 44,335,567 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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Cheap flight deals from Ontario to Montreal (ONT-YUL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Montreal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:45 am - 11:31 pmONT-YUL
14h 46m2 stops
1:44 pm - 10:47 pmYUL-ONT
12h 03m1 stop
$382Delta
Find Deal
Tue, May 21 - Fri, May 24
5:45 am - 11:31 pmONT-YUL
14h 46m2 stops
1:05 pm - 11:43 pmYUL-ONT
13h 38m2 stops
$387Delta
Find Deal
Tue, May 21 - Fri, May 24
10:00 pm - 12:29 pmONT-YUL
11h 29m1 stop
1:44 pm - 10:47 pmYUL-ONT
12h 03m1 stop
$411Delta
Find Deal
Mon, May 20 - Thu, May 23
5:45 am - 11:59 pmONT-YUL
15h 14m2 stops
7:10 am - 8:06 pmYUL-ONT
15h 56m2 stops
$426Delta
Find Deal
Sat, May 25 - Sat, Jun 1
6:00 am - 6:42 pmONT-YUL
9h 42m2 stops
8:10 am - 12:32 pmYUL-ONT
7h 22m1 stop
$431United Airlines
Find Deal
Mon, Aug 19 - Tue, Aug 27
6:00 am - 6:42 pmONT-YUL
9h 42m2 stops
6:15 am - 5:56 pmYUL-ONT
14h 41m2 stops
$436United Airlines
Find Deal
Mon, Aug 19 - Tue, Aug 27
7:40 pm - 10:25 amONT-YUL
11h 45m2 stops
3:47 pm - 9:49 amYUL-ONT
21h 02m1 stop
$451American Airlines
Find Deal
Mon, May 20 - Thu, May 23
7:40 pm - 10:25 amONT-YUL
11h 45m2 stops
4:05 pm - 12:27 amYUL-ONT
11h 22m2 stops
$456American Airlines
Find Deal
Mon, May 20 - Thu, May 23
1:35 pm - 7:10 amONT-YUL
14h 35m1 stop
8:00 am - 10:27 pmYUL-ONT
17h 27m1 stop
Sat, May 25 - Sat, Jun 1
7:18 am - 8:30 pmONT-YUL
10h 12m1 stop
6:15 pm - 9:58 amYUL-ONT
18h 43m1 stop
Fri, Oct 4 - Sun, Oct 6

Flights from Ontario to Montreal - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Montreal to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Ontario to Montreal Pierre Elliott Trudeau Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport is February, where tickets cost $460 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is $656 and $644 respectively.

How far in advance should I book a flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport, you should book around 3 days before departure. For the absolute cheapest price, our data suggests you should book 89 days before departure.

Which airlines provide the cheapest flights from Ontario to Montreal?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Ontario to Montreal found on KAYAK was with United Airlines for $158. Delta proposed a round-trip connection from $382 and United Airlines from $431.

Good to know

Low season

December

High season

June

Cheapest flight

$158
Best time to beat the crowds with an average 72% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Ontario to Montreal

When to book flights from Ontario to Montreal

Are your dates flexible? Find out the best times to travel from Ontario to Montreal based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Ontario to Montreal flights

  • What is the cheapest flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport?

    In the last 3 days, the lowest price for a flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport was $158 for a one-way ticket and $382 for a round-trip.

  • Do I need a passport to fly between Ontario and Montreal?

    Yes, you’ll need a passport to travel to Montreal from Ontario.

  • Which aircraft models fly most regularly from Ontario to Montreal?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Montreal?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Ontario and Montreal, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Montreal, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Montreal are Delta and American Airlines. With an average price for the route of $628 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $787 and an overall rating of 7.3.

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

    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 Montreal.

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

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

    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 to Montreal with an airline and back to Ontario with another airline. Booking your flights between Ontario and YUL can sometimes prove cheaper using this method.

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

    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 to Montreal from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Ontario to Montreal

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Montreal. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Montreal? 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 10966 reviews
7.9comfort
8.0entertainment
8.6crew
8.2boarding
7.4food
Airline reviews

There was a loud squeaky sound the whole time we were flying.

6.0 GoodEliza, Apr 2024SAN - LAX
Read more about Delta reviews

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Honestly, I didn’t expect that I will experience this long time wait during the check in. There was only one person who was taking care of the passengers for the economy class and it took us to wait about one hour to do our check i. As a result we barely get to the airplane as the gate was at the end of the airport. That is totally not professional where one crue is working at the registration desk with economy and 3-4 crues are helping for the business class.

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

You need to be a hacker to get the (Free) WiFi

Not sure why JAL partnered with American Airlines because their service is no where near similar. Flight attendants were not friendly and didn’t smile. Food was horrible…

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Comfort of seats, ease of boarding. Food selection could be better

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

We are gluten free, there were not any available complimentary gluten free options.

No meal on a cross country flight? SFO-MiA is pretty much the definition of a coast to coast flight. No meal provided. Sky high wi-fi rates too. Stop nickel and diming your customers.

The staff was unprofessional and didn’t communicate very well. The boarding process was very disheveled, potentially due to a power outage the previous day but there was no contingency plan to properly get passengers boarded the following day. Once boarded the aircraft stayed on the tarmac for over 45 minutes due to high winds. The communication was sporadic but an announcement was finally made an additional 30 minutes later that the flight was cancelled but we couldn’t get off the plane. Prior to deplaning one of the gate agents came on the plane and made an announcement for everyone to pickup their checked bags and take a card to rebook a new reservation because they didn’t have adequate staff. Flights were missed, passengers went to different airports and there was little to no assistance from AA.

You cancelled my flight by email then made it very difficult to get in contact with you. Then put me in a flight with a long layover in Mexico returning to the wrong airport in uk. Mind blowing my stressful. I missed see my grand dad because of you.

Apart from the delay due to unforeseen circumstances. The leg from sjc to dfw was fine. It was the leg from dfw to orf that we encountered issues mainly due to the flight attendant crew not being friendly. We had two small children and we needed some assistance to warm up milk so the baby would sleep. The crew just didn’t get it and made things very difficult. One made a remark that the baby’s dirty diaper smell was a “gift” to the plane in a rude way. Normally I’d brush that off as a funny comment if the rest of the trip the attendants were helpful or understanding of the difficulty we faced. But that wasn’t the case. We were met with rudeness on the second leg. Whereas on the first leg the crew were so nice and helpful.

Book cheap flights from Ontario to Montreal

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Montreal found on KAYAK in the last 72 hours.
5/18Sat
1 stopUnited Airlines
8h 54mONT-YUL
$158
7/2Tue
1 stopUnited Airlines
11h 20mONT-YUL
$180
9/30Mon
1 stopAmerican Airlines
12h 04mONT-YUL
$193
8/26Mon
1 stopKLM
7h 51mONT-YUL
$195
7/9Tue
1 stopAir Canada
8h 40mONT-YUL
$202
9/30Mon
1 stopKLM
9h 44mONT-YUL
$205
7/2Tue
2 stopsDelta
15h 31mONT-YUL
$208
9/29Sun
2 stopsDelta
14h 11mONT-YUL
$234
5/5Sun
1 stopAir Canada
8h 54mONT-YUL
$263
5/1Wed
1 stopAmerican Airlines
12h 30mONT-YUL
$342

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Last minute flights from Ontario to Montreal

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to Montreal that are departing in the next 10 days.
4/29Mon
multi-stopDelta
8h 19mONT-YUL
5/10Fri
multi-stopDelta
9h 22mYUL-ONT
$603
5/1Wed
multi-stopUnited Airlines
13h 14mONT-YUL
5/4Sat
multi-stopUnited Airlines
9h 25mYUL-ONT
$861
5/1Wed
multi-stopAmerican Airlines
23h 00mONT-YUL
5/5Sun
multi-stopAmerican Airlines
9h 12mYUL-ONT
$998
5/1Wed
multi-stopAmerican Airlines
19h 57mONT-YUL
5/5Sun
multi-stopAmerican Airlines
9h 12mYUL-ONT
$1,006
5/1Wed
multi-stopAmerican Airlines
12h 01mONT-YUL
5/5Sun
multi-stopAmerican Airlines
12h 27mYUL-ONT
$1,094

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Ontario - Montreal Flights

Departure:

Ontario (ONT)United States

Destination:

Montreal (YUL)Canada

Return flight deals:

Montreal - Ontario

Cabin classes: