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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Ontario from C$ 364

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — ONT
26 Mar — 2 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pierre Elliott Trudeau Intl to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to Ontario
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 February 2026.

Tue 14/49:30 a.m.
YUL
-
ONT
2 stops14h 30m
Delta
Sat 18/410:15 p.m.
ONT
-
YUL
2 stops17h 36m
Delta
Deal found 23/2C$ 635
Thu 16/43:45 p.m.
YUL
-
ONT
1 stop11h 01m
American Airlines
Tue 21/44:52 p.m.
ONT
-
YUL
2 stops15h 52m
American Airlines
Deal found 20/2C$ 640
Thu 16/42:32 p.m.
YUL
-
ONT
1 stop9h 35m
American Airlines
Mon 20/44:52 p.m.
ONT
-
YUL
2 stops18h 00m
American Airlines
Deal found 22/2C$ 677
Sat 18/412:42 p.m.
YUL
-
ONT
1 stop8h 51m
Delta
Tue 28/410:15 p.m.
ONT
-
YUL
1 stop10h 23m
Delta
Deal found 23/2C$ 678
Sat 18/412:30 p.m.
YUL
-
ONT
2 stops10h 04m
American Airlines
Tue 28/44:52 p.m.
ONT
-
YUL
2 stops15h 52m
American Airlines
Deal found 23/2C$ 681
Thu 9/412:42 p.m.
YUL
-
ONT
1 stop11h 18m
Multiple Airlines
Wed 15/410:15 p.m.
ONT
-
YUL
1 stop10h 21m
Multiple Airlines
Deal found 23/2C$ 685
Sun 8/36:00 a.m.
YUL
-
ONT
2 stops18h 00m
Delta
Tue 17/36:00 a.m.
ONT
-
YUL
2 stops14h 13m
Delta
Deal found 20/2C$ 713
Fri 6/36:00 a.m.
YUL
-
ONT
1 stop19h 18m
United Airlines
Mon 16/311:59 p.m.
ONT
-
YUL
1 stop11h 01m
United Airlines
Deal found 20/2C$ 732

Find flight deals from Pierre Elliott Trudeau Intl to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 24 February 2026.

Round-trip from

C$ 538

One-way from

C$ 364

Popular in

December

Cheapest in

May

Average price

C$ 579
American Airlines
  • American Airlines
  • 21/4-28/4
  • 4 total stops
  • 29h 31m total
  • Montreal to Ontario
Search Deals
9/4
  • 9/4
  • 3 total stops
  • 38h 55m total
  • Montreal to Ontario
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 24 February 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Ontario that are best for you.

Fly from

Pierre Elliott Trudeau Intl

Fly to

Ontario

Route

Depart

Return

Price

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 14/4

9:30 a.m.-9:00 p.m.

2 stops14h 30m

Ontario

Sat 18/4

10:15 p.m.-6:51 p.m.

2 stops17h 36m

C$ 650

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 16/4

9:45 a.m.-10:26 p.m.

1 stop15h 41m

Ontario

Tue 21/4

7:00 a.m.-9:26 p.m.

1 stop11h 26m

C$ 732

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sun 8/3

6:00 a.m.-9:00 p.m.

2 stops18h 00m

Ontario

Tue 17/3

10:25 p.m.-11:37 a.m.

1 stop10h 12m

C$ 732

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 9/4

12:42 p.m.-9:00 p.m.

1 stop11h 18m

Ontario

Wed 15/4

10:15 p.m.-11:36 a.m.

1 stop10h 21m

C$ 732

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 2/4

6:10 a.m.-10:26 p.m.

1 stop19h 16m

Ontario

Sat 11/4

7:00 a.m.-9:26 p.m.

1 stop11h 26m

C$ 774

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 17/4

4:55 p.m.-10:26 p.m.

1 stop8h 31m

Ontario

Fri 24/4

7:00 a.m.-9:26 p.m.

1 stop11h 26m

C$ 774

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 21/7

4:55 p.m.-10:46 p.m.

1 stop8h 51m

Ontario

Tue 4/8

6:30 a.m.-9:26 p.m.

1 stop11h 56m

C$ 782

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 17/3

4:45 p.m.-10:18 p.m.

1 stop8h 33m

Ontario

Mon 30/3

7:00 a.m.-9:26 p.m.

1 stop11h 26m

C$ 815

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sun 8/3

4:45 p.m.-10:18 p.m.

1 stop8h 33m

C$ 408

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Mon 9/3

4:45 p.m.-11:51 p.m.

2 stops10h 06m

C$ 408

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/2

Showing 1-10 of 20 results
1
2

Best time to book a flight from Pierre Elliott Trudeau Intl to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Pierre Elliott Trudeau Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario?

Currently, April is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario (average of C$ 183). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Ontario in January is currently the most expensive (average of C$ 364). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 24 February 2026.
Read reviews from past customers who have flown United Airlines and Air Canada from Montreal Pierre Elliott Trudeau Intl Airport to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,344 reviews
Check prices

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
9,344 reviews
United Airlines
7.4
Good
9,344 reviews
Check prices

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Air Canada
7.1
Good
10,742 reviews
United Airlines
7.4
Good
9,344 reviews
Check prices

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Montreal Pierre Elliott Trudeau Intl?

    For a flight from Montreal Pierre Elliott Trudeau Intl to Ontario, you will be flying into Ontario. Ontario (ONT) is just 4.9 km from the centre of the city. Ontario is the only Ontario airport and it handles 0 inbound flights from Montreal Pierre Elliott Trudeau Intl per day. 2 airlines have flights to Ontario from Montreal Pierre Elliott Trudeau Intl on a regular basis.

  • How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario?

    There are many flights that can get you from Montreal Pierre Elliott Trudeau Intl Airport to Ontario in 14h 30m. Fly via Delta or United Airlines to get the fastest option. There are 3899 km between Montreal Pierre Elliott Trudeau Intl Airport and Ontario. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Ontario round-trip?

    Currently priced at C$ 259, Air Canada will fly you from Montreal Pierre Elliott Trudeau Intl Airport to Ontario and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as C$ 428.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to Ontario that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to Ontario.

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Ontario?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, April is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario (average of C$ 183). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Ontario in January is currently the most expensive (average of C$ 364). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from Pierre Elliott Trudeau Intl to Ontario

Discover the top 2 airlines that operate flights from Pierre Elliott Trudeau Intl to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 24 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 259AverageC$ 648FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 428AverageC$ 923FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to Ontario?

Cheapflights helps you search for flights from Pierre Elliott Trudeau Intl to Ontario via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to Ontario?

Cheapflights helps you find that perfect flight to Ontario from Pierre Elliott Trudeau Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Pierre Elliott Trudeau Intl to Ontario with no change fees?

Certainly. Search results for flights to Ontario from Pierre Elliott Trudeau Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to Ontario become cheaper?

Yes! Start tracking prices for Pierre Elliott Trudeau Intl to Ontario flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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