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$227+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to Ontario (ONT)

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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — ONT
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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Cheap 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 March 11, 2026.

This Delta deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/149:30 am
YUL
-
ONT
2 stops14h 30m
Delta
Tue 4/2110:15 pm
ONT
-
YUL
2 stops17h 36m
Delta
Deal found 3/7$510
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/34:55 pm
YUL
-
ONT
1 stop8h 51m
United Airlines
Sun 6/76:30 am
ONT
-
YUL
1 stop11h 56m
United Airlines
Deal found 3/6$512
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/912:40 pm
YUL
-
ONT
1 stop8h 56m
Delta
Tue 5/1210:00 pm
ONT
-
YUL
1 stop10h 35m
Delta
Deal found 3/6$513
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/206:00 am
YUL
-
ONT
1 stop19h 18m
United Airlines
Mon 3/2311:59 pm
ONT
-
YUL
1 stop11h 01m
United Airlines
Deal found 3/6$532
This FlightHub deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:30 am
YUL
-
ONT
2 stops29h 15m
Multiple Airlines
Sat 5/93:26 pm
ONT
-
YUL
2 stops12h 39m
Multiple Airlines
Deal found 3/8$536
This Delta deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/209:30 am
YUL
-
ONT
2 stops14h 30m
Delta
Tue 4/2110:15 pm
ONT
-
YUL
2 stops17h 36m
Delta
Deal found 3/10$538
This American Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:45 pm
YUL
-
ONT
1 stop9h 51m
American Airlines
Thu 4/3011:59 pm
ONT
-
YUL
1 stop11h 45m
American Airlines
Deal found 3/9$550
This American Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/92:32 pm
YUL
-
ONT
1 stop9h 35m
American Airlines
Wed 4/152:08 pm
ONT
-
YUL
1 stop21h 36m
American Airlines
Deal found 3/7$552
This United Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:10 am
YUL
-
ONT
2 stops18h 40m
United Airlines
Tue 4/217:00 am
ONT
-
YUL
1 stop11h 26m
United Airlines
Deal found 3/7$553
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/29:30 am
YUL
-
ONT
2 stops14h 30m
Delta
Tue 5/56:00 am
ONT
-
YUL
2 stops14h 26m
Delta
Deal found 3/9$555

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 March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$496
(United Airlines)

One-way from

$227
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$393
Provider with most accurate pricing for Montreal Pierre Elliott Trudeau Intl-Ontario flight deals.
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Provider most trusted by Cheapflights users for Montreal Pierre Elliott Trudeau Intl-Ontario flights.
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From Montreal Pierre Elliott Trudeau Intl to Ontario
Search Deals
One-way flight from Montreal Pierre Elliott Trudeau Intl to Ontario
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in March 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 2,558,603 searches. Data last updated March 11, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

12:40 pm-6:36 pm

1 stop8h 56m

Ontario

Tue 5/12

10:00 pm-11:35 am

1 stop10h 35m

$513

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 4/14

12:42 pm-9:00 pm

1 stop11h 18m

Ontario

Tue 4/21

10:15 pm-6:51 pm

2 stops17h 36m

$531

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 5/2

11:23 am-8:36 pm

2 stops12h 13m

Ontario

Tue 5/5

5:00 am-12:13 am

2 stops16h 13m

$555

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 3/31

9:20 am-9:00 pm

2 stops14h 40m

Ontario

Sat 4/4

10:25 pm-11:37 am

1 stop10h 12m

$555

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 5/2

9:30 am-9:00 pm

2 stops14h 30m

Ontario

Tue 5/5

6:00 am-11:26 pm

2 stops14h 26m

$560

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 6/23

6:10 am-5:28 pm

2 stops14h 18m

Ontario

Tue 6/30

1:18 pm-10:40 am

2 stops18h 22m

$585

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 3/25

4:45 pm-10:18 pm

1 stop8h 33m

Ontario

Mon 3/30

1:34 pm-2:40 pm

2 stops22h 06m

$586

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 3/24

7:00 am-6:07 pm

2 stops14h 07m

Ontario

Mon 3/30

5:10 am-10:06 pm

2 stops13h 56m

$586

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 3/20

6:00 am-10:18 pm

1 stop19h 18m

Ontario

Mon 3/23

5:15 am-9:42 pm

2 stops13h 27m

$589

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 5/7

5:00 pm-10:35 pm

1 stop8h 35m

Ontario

Fri 5/15

7:00 am-9:26 pm

1 stop11h 26m

$593

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Showing 1-10 of 21 resultsSorted by cheapest first
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  • Most accurate provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Montreal Pierre Elliott Trudeau Intl Airport-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Montreal Pierre Elliott Trudeau Intl Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Montreal Pierre Elliott Trudeau Intl Airport-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $134). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Ontario in January is currently the most expensive (average of $265). 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.

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?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Montreal Pierre Elliott Trudeau Intl. On average, Ontario has 0 inbound flights from Montreal Pierre Elliott Trudeau Intl per day from 0 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

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

    A quick flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario can take about 8h 56m. Delta provides one of the quickest options available for as low as $513. The distance between Montreal Pierre Elliott Trudeau Intl Airport and Ontario is about 2423 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $134). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Ontario in January is currently the most expensive (average of $265). 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.

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