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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Ontario from C$ 290

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 29/10. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — ONT
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheap 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 16 September 2025.

Round-trip from

C$ 667

One-way from

C$ 290

Popular in

August

Cheapest in

January

Average price

C$ 571
American Airlines
  • American Airlines
  • 20/2-24/2
  • 4 total stops
  • 42h 27m total
  • Montreal to Ontario
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29/10
  • 29/10
  • 2 total stops
  • 16h 57m total
  • Montreal to Ontario
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (C$ 317 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease (C$ 55 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Pierre Elliott Trudeau Intl to Ontario

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 16 September 2025.

Sat 6/127:30 a.m.YUL - ONT
2 stops13h 49mAmerican Airlines
Fri 12/124:47 p.m.ONT - YUL
2 stops19h 14mAmerican Airlines
Deal found 13/9C$ 681
Mon 3/117:30 p.m.YUL - ONT
2 stops17h 56mDelta
Fri 7/115:50 p.m.ONT - YUL
2 stops26h 31mDelta
Deal found 16/9C$ 705
Mon 3/114:00 p.m.YUL - ONT
1 stop9h 29mAmerican Airlines
Fri 7/114:47 p.m.ONT - YUL
2 stops16h 28mAmerican Airlines
Deal found 16/9C$ 796
Mon 3/115:50 p.m.YUL - ONT
1 stop26h 44mUnited Airlines
Fri 7/111:40 p.m.ONT - YUL
1 stop24h 09mUnited Airlines
Deal found 16/9C$ 829
Sat 11/108:05 a.m.YUL - ONT
1 stop12h 44mUnited Airlines
Sat 18/106:36 p.m.ONT - YUL
1 stop10h 40mUnited Airlines
Deal found 14/9C$ 859
Sat 11/108:05 a.m.YUL - ONT
1 stop12h 44mUnited Airlines
Wed 15/106:36 p.m.ONT - YUL
1 stop10h 40mUnited Airlines
Deal found 16/9C$ 870
Wed 24/96:35 a.m.YUL - ONT
2 stops17h 08mUnited Airlines
Tue 7/101:53 p.m.ONT - YUL
2 stops17h 42mUnited Airlines
Deal found 15/9C$ 879
Thu 9/108:05 a.m.YUL - ONT
1 stop17h 47mMultiple Airlines
Tue 14/101:53 p.m.ONT - YUL
1 stop15h 23mMultiple Airlines
Deal found 15/9C$ 888
Thu 9/104:45 p.m.YUL - ONT
1 stop9h 07mUnited Airlines
Sun 12/106:36 p.m.ONT - YUL
1 stop10h 40mUnited Airlines
Deal found 15/9C$ 901

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 16 September 2025.
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

Sat 6/12

7:30 a.m.-6:19 p.m.

2 stops13h 49m

Ontario

Fri 12/12

4:47 p.m.-3:01 p.m.

2 stops19h 14m

C$ 681

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Mon 3/11

7:30 p.m.-10:26 a.m.

2 stops17h 56m

Ontario

Fri 7/11

5:50 p.m.-11:21 p.m.

2 stops26h 31m

C$ 705

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 11/2

5:25 p.m.-12:43 p.m.

1 stop22h 18m

Ontario

Tue 24/2

1:52 p.m.-10:20 a.m.

2 stops17h 28m

C$ 754

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 17/2

5:50 p.m.-12:18 p.m.

1 stop21h 28m

Ontario

Mon 23/2

1:00 p.m.-4:58 p.m.

1 stop24h 58m

C$ 754

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 20/2

5:50 p.m.-12:18 p.m.

1 stop21h 28m

Ontario

Tue 24/2

6:37 p.m.-4:49 p.m.

1 stop19h 12m

C$ 765

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 17/2

5:50 p.m.-12:18 p.m.

1 stop21h 28m

Ontario

Sat 21/2

6:37 p.m.-4:49 p.m.

1 stop19h 12m

C$ 765

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Mon 16/2

5:25 p.m.-9:19 p.m.

1 stop30h 54m

Ontario

Tue 24/2

6:00 a.m.-10:20 a.m.

2 stops25h 20m

C$ 771

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Mon 3/11

4:00 p.m.-10:29 p.m.

1 stop9h 29m

Ontario

Fri 7/11

4:47 p.m.-12:15 p.m.

2 stops16h 28m

C$ 796

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 29/10

6:45 a.m.-8:42 p.m.

2 stops16h 57m

C$ 290

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 25/9

6:45 a.m.-6:35 p.m.

2 stops14h 50m

C$ 311

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Showing 1-10 of 19 results
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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, September is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario (average of C$ 290). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Ontario in December is currently the most expensive (average of C$ 461). 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.

What is the cheapest time of day to fly from YUL to ONT?

Find hourly flight availability from Pierre Elliott Trudeau Intl to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 September 2025.

A simple way to save on the total cost of your ticket is to fly from Montreal Pierre Elliott Trudeau Intl Airport to Ontario in the afternoon. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight at noon.

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 16 September 2025.
Read reviews from past customers who have flown Delta,United Airlines, andAir 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.
Delta
8.0
Very good
7,957 reviews
Check prices

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews
Check prices

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,957 reviews
Check prices

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews
Check prices

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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. 3 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 13h 49m. Fly via American Airlines, 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$ 396, United Airlines will fly you from Montreal Pierre Elliott Trudeau Intl Airport to Ontario and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and Delta - these airlines can fly you to your destination from C$ 400 and C$ 426, respectively. Users have found that United Airlines is 37% cheaper than the other options available to this destination.

  • 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, September is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario (average of C$ 290). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Ontario in December is currently the most expensive (average of C$ 461). 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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Alternative routes for Pierre Elliott Trudeau Intl to Ontario

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Top 3 airlines flying from Pierre Elliott Trudeau Intl to Ontario

Discover the top 3 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 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 396AverageC$ 903FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 400AverageC$ 468FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 426AverageC$ 438FlexibilityNo cancel feeOn-timeN/A
Search Delta 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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