YUL - ONT

C$ 352 Find Cheap Flights from Montreal to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Montreal to Ontario departing on 5/4. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montreal to Ontario, 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 Montreal to Ontario, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 787
Delta
Thu 12/3Wed 25/3
YUL - ONT • 1 stop
Cheapest one-way flights
C$ 352
Multiple Airlines
Sun 5/4
YUL - ONT • 2 stops
Top airlines
Delta
Cheapest • from C$ 787 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Montreal to Ontario (YUL-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Montreal to Ontario 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Montreal to Ontario

Thu, 12 Mar - Wed, 25 Mar
Delta Logo
12:42 p.m. - 9:00 p.m.
YUL
-
ONT
11h 18m
1 stop
Delta Logo
12:57 p.m. - 11:45 p.m.
ONT
-
YUL
7h 48m
1 stop
C$ 787Delta
Thu, 5 Mar - Thu, 12 Mar
Delta Logo
12:30 p.m. - 9:05 p.m.
YUL
-
ONT
11h 35m
1 stop
Delta Logo
12:57 p.m. - 11:45 p.m.
ONT
-
YUL
7h 48m
1 stop
C$ 793Delta
Thu, 5 Mar - Wed, 11 Mar
United Airlines Logo
6:00 a.m. - 10:18 p.m.
YUL
-
ONT
19h 18m
1 stop
United Airlines Logo
1:50 p.m. - 3:16 p.m.
ONT
-
YUL
22h 26m
2 stops
C$ 794United Airlines
Fri, 13 Mar - Sat, 21 Mar
United Airlines Logo
6:00 a.m. - 10:18 p.m.
YUL
-
ONT
19h 18m
1 stop
United Airlines Logo
11:59 p.m. - 9:17 p.m.
ONT
-
YUL
18h 18m
1 stop
C$ 797United Airlines
Mon, 9 Mar - Mon, 16 Mar
United Airlines Logo
4:45 p.m. - 10:18 p.m.
YUL
-
ONT
8h 33m
1 stop
United Airlines Logo
11:59 p.m. - 2:00 p.m.
ONT
-
YUL
11h 01m
1 stop
C$ 798United Airlines
Thu, 5 Mar - Thu, 12 Mar
Delta Logo
12:30 p.m. - 9:05 p.m.
YUL
-
ONT
11h 35m
1 stop
Delta Logo
12:57 p.m. - 11:45 p.m.
ONT
-
YUL
7h 48m
1 stop
C$ 808Delta
Mon, 4 May - Fri, 8 May
United Airlines Logo
4:55 p.m. - 10:30 p.m.
YUL
-
ONT
8h 35m
1 stop
United Airlines Logo
7:00 a.m. - 9:26 p.m.
ONT
-
YUL
11h 26m
1 stop
C$ 809United Airlines
Sat, 14 Feb - Tue, 17 Feb
Delta Logo
12:30 p.m. - 9:05 p.m.
YUL
-
ONT
11h 35m
1 stop
Delta Logo
10:20 p.m. - 11:25 a.m.
ONT
-
YUL
10h 05m
1 stop
C$ 817Delta
Wed, 11 Feb - Sun, 15 Feb
Delta Logo
9:34 a.m. - 9:05 p.m.
YUL
-
ONT
14h 31m
2 stops
Delta Logo
10:20 p.m. - 11:25 a.m.
ONT
-
YUL
10h 05m
1 stop
C$ 823Delta
Thu, 5 Mar - Wed, 11 Mar
Delta Logo
12:30 p.m. - 9:05 p.m.
YUL
-
ONT
11h 35m
1 stop
Delta Logo
12:57 p.m. - 11:45 p.m.
ONT
-
YUL
7h 48m
1 stop
C$ 824Delta
Booking Insights

KAYAK's insights & trends for Montreal to Ontario flights

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

Which airlines provide the cheapest flights from Montreal to Ontario?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Montreal to Ontario were found on Delta (C$ 787) and United Airlines (C$ 794).

Good to know

Cheapest flightC$ 352
Flight from Montreal to Ontario

When to book flights from Montreal to Ontario

Are your dates flexible? Find out the best times to travel from Montreal to Ontario 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 Montreal to Ontario flights

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

    In the last 3 days, the lowest price for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario was C$ 352 for a one-way ticket and C$ 787 for a round-trip.

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

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

  • Which airline alliances offer flights from Montreal to Ontario?

    Star Alliance is the only airline alliance operating flights between Montreal and Ontario.

  • Which is the best airline for flights from Montreal to Ontario, United Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from Montreal to Ontario are United Airlines and Air Canada. With an average price for the route of C$ 916 and an overall rating of 7.4, United Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 539 and an overall rating of 7.1.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Montreal 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 Montreal 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 to Ontario with an airline and back to Montreal with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Montreal 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 to Ontario from Montreal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Montreal to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Montreal to Ontario. 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 Montreal 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.
7.4
United AirlinesOverall score based on 9215 reviews
7.1Entertainment
6.6Food
7.7Boarding
8.1Crew
7.3Comfort
Airline reviews

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

6.0 GoodAnonymous, Jan 2026
SLC - SFO
Read more United Airlines reviews

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Mean flight attendant. I wanted to reuse my plastic cup, but he (Matthew) said he can't for safety. I then said "I don't want water then" and he poured me a glass. I hope Matthew gets herpes and spends the rest of his life poor, lonely, and homeless.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Both flights delayed. 2nd flight over 3 hours late mechanical issues

Flight was delayed 45 minutes because originating flight was coming from Newark. No complimentary snacks were offered on this 5+ hour flight. No screens for the flight, but movies offered if you had already downloaded the United app (which I hadn't on my ipad). No USB ports, only a flimsy plug-in port near the bottom of the seat that was hard to see and kept coming unplugged.

It was good but only meal served is very less. Meantime good to add rice and chicken in one of meal

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

On the way my flight entertainment wouldn’t work the screen went black and no matter how many times I tried to turn it on it wouldn’t. Food was surprisingly good but the tray tables were tiny so you couldn’t get anything else on the table. The seats hardly go back and are not overly comfortable. Wouldn’t fly United again.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Air Canada’s problems are not staff related by and large, no. The problem is tiny jets between the U.S. and Canada - yes, believe it or not they are still “international” (just ask our own Mango Maniac in power in the U.S.). The little aisle is compounded by a design flaw of a “dog leg” starting at seat 12. Woe be unto you if you sit here as passengers and attendants do not have sufficient room to not hit you in the face with backpacks. One thing I will say very positively about Air Canada is you still provide pillows and blankets on transcontinental flights to all, not just the elites. Your tiny improperly designed jets are also a problem flying city to city within Canada also. One can only say you remind us of a “Jet Blue” or “Spirit” experience. Also your luggage space is downright Byzantine! We will endeavor to avoid you and use other U.S. carriers, albeit charging more.

Terrible canceled flight and lost my luggage. Flew me to Halifax. Tgat flight was delayed, had to spend night in airport chair.

My seat was not comfortable. Flight was smooth. Regretfully we had two delays before takeoff

They are very proactive and made our boarding easy and always notified us about any changes well in advance.

The staff could not have been any friendlier. Lots of usb ports on our aircraft.

It was crazy, boarded over a hour late from scheduled departure. Then when arrived in BNA issued with getting off the plane…over 1/2 hour. Not looking forward to flying Air Canada, ever again.

Great flight. Only complaint is it took over an hour for my luggage to get to the carousel on the return to LAX That was irritating

1 hour late No hot drinks No restroom in the back of the plane

I had wonderful wheelchair assistance through the Montreal airport onto the flight. Air Canada was excellent in this both at the Fredericton airport and the Montreal one where an attendant helped us through customs as well as transport and baggage security.

Flight was cancelled last minute due to Air Canada strike leaving us stranded and having to stressfully find a way home that cost hundreds of dollars in excess cost added to the trip. Having just experienced our mother's funeral service, this was not a good way to end our trip.

Everything you need to know for your flight from Montreal to Ontario

Information on your arrival and departure airports