What are the cheapest airlines to fly from Ontario to Montreal Pierre Elliott Trudeau Intl Airport one-way?

To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at C$ 270. Delta flights start at C$ 352 while deals on United Airlines start at C$ 395 one-way.

In terms of precipitation, rainfall in Montreal Pierre Elliott Trudeau Intl Airport ranges from 64.0 - 111.0 mm per month. August is typically the wettest month, when rainfall can reach 111.0 mm. February is typically the driest time to visit Montreal Pierre Elliott Trudeau Intl Airport when rainfall is around 64.0 mm.

If weather is an important factor for your trip to Montreal Pierre Elliott Trudeau Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -9.0 C).

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

Our data shows that March tends to be the cheapest month to fly to Montreal Pierre Elliott Trudeau Intl Airport from Ontario. Users have commonly found prices around C$ 611 for the month, but tickets can be as low as C$ 173. Due to multiple factors, prepare for potentially higher prices in December.

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

When flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

If you book a flight to Montreal Pierre Elliott Trudeau Intl from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 4.9 km from the centre of Ontario. There are 0 flights from Ontario to Montreal Pierre Elliott Trudeau Intl per day from 0 different airlines.

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

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

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

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

C$ 270+ Flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport

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

Find a great deal and save up to 106% by booking at least 42 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Montreal Pierre Elliott Trudeau Intl Airport within the next two weeks, with the cheapest ticket starting at C$ 412.

Cheap flight deals from Ontario to Pierre Elliott Trudeau Intl

Round-trip from	C$ 741
One-way from	C$ 270
Popular in	January
Cheapest in	October
Average price	C$ 818

American Airlines
12/8-19/8
4 total stops
26h 36m total
Ontario to Montreal

Search Deals

American Airlines
2/9
2 total stops
15h 51m total
Ontario to Montreal

Search Deals

Highest demand for flights based on searches. 24% potential increase in price (C$ 304 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 9% potential price decrease (C$ 83 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Ontario to Pierre Elliott Trudeau Intl

Cheapest flights from Ontario to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Ontario to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2025.

Tue 12/86:17 a.m.ONT - YUL

2 stops13h 18mAmerican Airlines

Tue 19/812:30 p.m.YUL - ONT

2 stops13h 18mAmerican Airlines

Deal found 30/6C$ 741

Tue 8/711:40 a.m.ONT - YUL

1 stop9h 15mDelta

Tue 22/711:00 a.m.YUL - ONT

2 stops14h 27mDelta

Deal found 1/7C$ 878

Sat 16/85:05 a.m.ONT - YUL

1 stop15h 21mUnited Airlines

Sat 23/88:05 a.m.YUL - ONT

1 stop15h 38mUnited Airlines

Deal found 3/7C$ 916

Fri 15/812:59 a.m.ONT - YUL

2 stops20h 44mMultiple Airlines

Sat 23/84:05 p.m.YUL - ONT

1 stop32h 50mMultiple Airlines

Deal found 3/7C$ 958

Sun 17/85:05 a.m.ONT - YUL

1 stop7h 21mAir Canada

Sun 24/84:05 p.m.YUL - ONT

1 stop7h 38mAir Canada

Deal found 3/7C$ 964

Best flights from Ontario to Pierre Elliott Trudeau Intl
Discover carefully curated flight deals from Ontario to Pierre Elliott Trudeau Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 3 July 2025.

Tue 12/86:17 a.m.ONT - YUL

2 stops13h 18mAmerican Airlines

Tue 19/812:30 p.m.YUL - ONT

2 stops13h 18mAmerican Airlines

Deal found 30/6C$ 741

Sat 16/811:45 a.m.ONT - YUL

1 stop9h 08mDelta

Sat 23/86:00 a.m.YUL - ONT

2 stops16h 11mDelta

Deal found 1/7C$ 878

Sat 16/85:05 a.m.ONT - YUL

1 stop15h 21mUnited Airlines

Sat 23/88:05 a.m.YUL - ONT

1 stop15h 38mUnited Airlines

Deal found 3/7C$ 916

Fri 15/812:59 a.m.ONT - YUL

2 stops20h 44mMultiple Airlines

Sat 23/84:05 p.m.YUL - ONT

1 stop32h 50mMultiple Airlines

Deal found 3/7C$ 958

Sun 17/85:05 a.m.ONT - YUL

1 stop7h 21mAir Canada

Sun 24/84:05 p.m.YUL - ONT

1 stop7h 38mAir Canada

Deal found 3/7C$ 964

Last-minute flights from Ontario to Pierre Elliott Trudeau Intl
Discover last-minute flight deals from Ontario to Pierre Elliott Trudeau Intl. Data last updated 3 July 2025 and is based on user searches.

Tue 8/711:40 a.m.ONT - YUL

1 stop9h 15mDelta

Tue 22/711:00 a.m.YUL - ONT

2 stops14h 27mDelta

Deal found 1/7C$ 878

Tue 8/77:00 a.m.ONT - YUL

1 stop7h 26mUnited Airlines

Tue 22/79:45 a.m.YUL - ONT

1 stop15h 26mUnited Airlines

Deal found 1/7C$ 1,014

Tue 8/72:14 p.m.ONT - YUL

3 stops20h 58mMultiple Airlines

Tue 22/77:55 p.m.YUL - ONT

3 stops24h 21mMultiple Airlines

Deal found 1/7C$ 1,757

Sun 13/712:59 a.m.ONT - YUL

1 stop10h 46mAmerican Airlines

Sat 19/77:29 a.m.YUL - ONT

1 stop17h 09mAmerican Airlines

Deal found 2/7C$ 1,066

Tue 12/86:17 a.m.ONT - YUL

2 stops13h 18mAmerican Airlines

Tue 19/812:30 p.m.YUL - ONT

2 stops13h 18mAmerican Airlines

Deal found 30/6C$ 741

Fri 15/812:59 a.m.ONT - YUL

2 stops20h 44mMultiple Airlines

Sat 23/84:05 p.m.YUL - ONT

1 stop32h 50mMultiple Airlines

Deal found 3/7C$ 958

Sat 16/85:05 a.m.ONT - YUL

1 stop15h 21mUnited Airlines

Sat 23/88:05 a.m.YUL - ONT

1 stop15h 38mUnited Airlines

Deal found 3/7C$ 916

Sun 17/85:05 a.m.ONT - YUL

1 stop7h 21mAir Canada

Sun 24/84:05 p.m.YUL - ONT

1 stop7h 38mAir Canada

Deal found 3/7C$ 964

One-way flights from Ontario to Pierre Elliott Trudeau Intl
Search for one-way flight options from Ontario to Pierre Elliott Trudeau Intl. Find affordable one-way fares based on user searches. Data last updated 3 July 2025.

Tue 2/94:54 p.m.ONT - YUL

2 stops15h 51mAmerican Airlines

Deal found 2/7C$ 270

Wed 23/77:00 a.m.ONT - YUL

2 stops23h 02mMultiple Airlines

Deal found 2/7C$ 283

Fri 18/710:05 p.m.ONT - YUL

2 stops17h 48mDelta

Deal found 2/7C$ 352

Wed 3/97:00 a.m.ONT - YUL

1 stop11h 29mUnited Airlines

Deal found 2/7C$ 395

Thu 21/81:15 p.m.ONT - YUL

1 stop7h 11mAir Canada

Deal found 2/7C$ 496

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 12/8

6:17 a.m.-10:35 p.m.

2 stops13h 18m

Montreal Pierre Elliott Trudeau Intl

Tue 19/8

12:30 p.m.-10:48 p.m.

2 stops13h 18m

C$ 741

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 16/8

11:45 a.m.-11:53 p.m.

1 stop9h 08m

Montreal Pierre Elliott Trudeau Intl

Sat 23/8

6:00 a.m.-7:11 p.m.

2 stops16h 11m

C$ 878

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sat 16/8

5:05 a.m.-11:26 p.m.

1 stop15h 21m

Montreal Pierre Elliott Trudeau Intl

Sat 23/8

8:05 a.m.-8:43 p.m.

1 stop15h 38m

C$ 916

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 15/8

12:59 a.m.-12:43 a.m.

2 stops20h 44m

Montreal Pierre Elliott Trudeau Intl

Sat 23/8

4:05 p.m.-9:55 p.m.

1 stop32h 50m

C$ 958

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Sun 17/8

5:05 a.m.-3:26 p.m.

1 stop7h 21m

Montreal Pierre Elliott Trudeau Intl

Sun 24/8

4:05 p.m.-8:43 p.m.

1 stop7h 38m

C$ 964

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Tue 2/9

4:54 p.m.-11:45 a.m.

2 stops15h 51m

C$ 270

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 23/7

7:00 a.m.-9:02 a.m.

2 stops23h 02m

C$ 283

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Fri 18/7

10:05 p.m.-6:53 p.m.

2 stops17h 48m

C$ 352

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Wed 3/9

7:00 a.m.-9:29 p.m.

1 stop11h 29m

C$ 395

OntarioMontreal

ONT - YUL

ONTYUL

Ontario

Thu 21/8

1:15 p.m.-11:26 p.m.

1 stop7h 11m

C$ 496

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/7

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

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from Ontario 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 Ontario to Montreal Pierre Elliott Trudeau Intl Airport

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

Currently, October is the cheapest month in which you can book a flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 241). Flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport in April is currently the most expensive (average of C$ 316). 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 Pierre Elliott Trudeau Intl

Check out reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from Ontario to Montreal Pierre Elliott Trudeau Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,982 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,982 reviews

Delta

8.0

Very good

7,982 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,861 reviews

Delta

8.0

Very good

7,982 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,982 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.1

Good

9,681 reviews

Delta

8.0

Very good

7,982 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly from for flights from Ontario to Montreal Pierre Elliott Trudeau Intl?
If you book a flight to Montreal Pierre Elliott Trudeau Intl from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 4.9 km from the centre of Ontario. There are 0 flights from Ontario to Montreal Pierre Elliott Trudeau Intl per day from 0 different airlines.
What are the cheapest airlines flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport round-trip?
According to our current data, American Airlines (C$ 741), Delta (C$ 878), and United Airlines (C$ 916) offers the cheapest pricing from Ontario to Montreal Pierre Elliott Trudeau Intl Airport.
What are the cheapest airlines to fly from Ontario to Montreal Pierre Elliott Trudeau Intl Airport one-way?
To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at C$ 270. Delta flights start at C$ 352 while deals on United Airlines start at C$ 395 one-way.
Can I find deals for flights from Ontario to Pierre Elliott Trudeau Intl that include hotel bookings?
Yes. In addition to deals on Ontario to Pierre Elliott Trudeau Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Pierre Elliott Trudeau Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Pierre Elliott Trudeau Intl.
Can I find deals for business class flights from Ontario to Pierre Elliott Trudeau Intl?
Yes. Cheapflights offers flight deals from Ontario to Pierre Elliott Trudeau Intl 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 Ontario to Montreal Pierre Elliott Trudeau Intl Airport?
Currently, October is the cheapest month in which you can book a flight from Ontario to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 241). Flying from Ontario to Montreal Pierre Elliott Trudeau Intl Airport in April is currently the most expensive (average of C$ 316). 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

Laval

Longueuil

Dorval

Cornwall

Brossard

Montebello

Drummondville

Trois-Rivières

Sherbrooke

Saint-Jean-sur-Richelieu

Boucherville

Saint-Sauveur

Bromont

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

Cheapflights helps you search for flights from Ontario to Pierre Elliott Trudeau Intl 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 Ontario to Pierre Elliott Trudeau Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario to Pierre Elliott Trudeau Intl.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to Pierre Elliott Trudeau Intl, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Pierre Elliott Trudeau Intl from Ontario today and book when prices fit your budget.

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Cheap flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport from C$ 270

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to Pierre Elliott Trudeau Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Pierre Elliott Trudeau Intl

Cheapest flights from Ontario to Pierre Elliott Trudeau IntlExplore the most affordable flight options available from Ontario to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2025.

Explore the most affordable flight options available from Ontario to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

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

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from Ontario with our price prediction graph.

Cheapflights Insights

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

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

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Related info for your journey

Find useful and relevant information for your journey from Ontario to Pierre Elliott Trudeau Intl. 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 from for flights from Ontario to Montreal Pierre Elliott Trudeau Intl?

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

What are the cheapest airlines to fly from Ontario to Montreal Pierre Elliott Trudeau Intl Airport one-way?

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

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

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

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

Travelling to a place near Ontario?

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Alternative routes for Ontario to Pierre Elliott Trudeau Intl

See prices for flight routes from nearby airports that may be better suited for you.

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Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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

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

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

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Cheapest flights from Ontario to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Ontario to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2025.