What are the cheapest airlines to fly from Region of Ontario to Trieste one-way?

To fly one-way, consider booking your trip with Lufthansa, which is currently one of the cheapest options available, starting at C$ 697. TAP AIR PORTUGAL flights start at C$ 1,183 while deals on ITA Airways start at C$ 1,261 one-way.

What are the most popular routes from Region of Ontario to Trieste?

The most popular flight routes from Region of Ontario to Trieste are Montreal Pierre Elliott Trudeau Intl - Trieste Ronchi dei Legionari, Toronto Pearson Intl - Trieste Ronchi dei Legionari and North Bay - Trieste Ronchi dei Legionari.

What is the cheapest month to fly from Region of Ontario to Trieste?

Our data shows that June tends to be the cheapest month to fly to Trieste from Region of Ontario. Users have commonly found prices around C$ 1,178 for the month, but tickets can be as low as C$ 886. Due to multiple factors, prepare for potentially higher prices in February.

What airport do you fly into for flights to Trieste from Ontario?

Trieste Ronchi dei Legionari (TRS) is the airport you will fly into if you book a flight from Ontario to Trieste. It is only a 29.3 km journey from Ronchi dei Legionari (TRS) to Trieste’s city centre.

Can I find deals for flights from Ontario to Trieste that include hotel bookings?

Yes. In addition to deals on Ontario to Trieste flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ontario to Trieste?

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

Can I find deals for business class flights from Ontario to Trieste?

Yes. Cheapflights offers flight deals from Ontario to Trieste 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$ 458+ Flights from Ontario to Trieste

Cheap flight deals from Ontario to Trieste

Round-trip from	C$ 837
One-way from	C$ 458
Popular in	February
Cheapest in	June
Average price	C$ 937

ITA Airways
15/6-23/6
2 total stops
40h 20m total
Ontario to Trieste

Search Deals

26/7
3 total stops
47h 05m total
Ontario to Trieste

Search Deals

Highest demand for flights based on searches. 24% potential increase in price (C$ 534 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (C$ 66 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from Ontario to Trieste

Cheapest flights from Ontario to Trieste
Explore the most affordable flight options available from Ontario to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Sun 15/65:00 p.m.YYZ - TRS

1 stop15h 30mITA Airways

Mon 23/67:15 p.m.TRS - YYZ

1 stop24h 50mITA Airways

Deal found 10/6C$ 837

Sun 28/99:10 p.m.YYZ - TRS

1 stop19h 25mMultiple Airlines

Fri 17/106:30 a.m.TRS - YYZ

1 stop15h 50mMultiple Airlines

Deal found 11/6C$ 879

Fri 7/116:00 p.m.YUL - TRS

1 stop13h 55mMultiple Airlines

Sat 15/116:15 a.m.TRS - YUL

1 stop11h 40mMultiple Airlines

Deal found 12/6C$ 902

Wed 27/86:50 p.m.YUL - TRS

2 stops22h 05mKLM

Mon 8/96:35 a.m.TRS - YUL

2 stops17h 08mKLM

Deal found 11/6C$ 922

Sun 28/98:20 p.m.YYZ - TRS

2 stops35h 45mLufthansa

Fri 17/106:30 a.m.TRS - YYZ

2 stops17h 28mLufthansa

Deal found 11/6C$ 942

Mon 20/102:40 p.m.YOW - TRS

2 stops17h 25mMultiple Airlines

Mon 3/112:45 p.m.TRS - YOW

2 stops24h 32mMultiple Airlines

Deal found 10/6C$ 983

Sat 20/95:50 p.m.YUL - TRS

2 stops22h 35mLufthansa

Wed 15/106:30 a.m.TRS - YUL

2 stops41h 28mLufthansa

Deal found 10/6C$ 998

Mon 1/95:10 p.m.YTZ - TRS

2 stops15h 20mMultiple Airlines

Mon 15/97:25 p.m.TRS - YTZ

2 stops31h 25mMultiple Airlines

Deal found 11/6C$ 1,012

Sun 2/114:50 p.m.YUL - TRS

2 stops43h 40mSWISS

Sun 23/113:15 p.m.TRS - YUL

2 stops30h 00mSWISS

Deal found 11/6C$ 1,196

Mon 25/86:00 a.m.YUL - TRS

2 stops46h 25mDelta

Thu 11/911:15 a.m.TRS - YUL

2 stops41h 53mDelta

Deal found 11/6C$ 1,272

Tue 2/95:40 p.m.YYZ - TRS

2 stops18h 55mTAP AIR PORTUGAL

Tue 16/911:15 a.m.TRS - YYZ

2 stops32h 40mTAP AIR PORTUGAL

Deal found 11/6C$ 1,371

Sat 20/98:00 p.m.YUL - TRS

3 stops20h 55mTAP AIR PORTUGAL

Wed 15/106:35 a.m.TRS - YUL

2 stops20h 10mTAP AIR PORTUGAL

Deal found 11/6C$ 1,732

Best flights from Ontario to Trieste
Discover carefully curated flight deals from Ontario to Trieste that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 12 June 2025.

Sun 15/65:00 p.m.YYZ - TRS

1 stop15h 30mITA Airways

Mon 23/67:15 p.m.TRS - YYZ

1 stop24h 50mITA Airways

Deal found 10/6C$ 837

Wed 27/86:50 p.m.YUL - TRS

2 stops22h 05mKLM

Mon 8/96:35 a.m.TRS - YUL

2 stops17h 08mKLM

Deal found 11/6C$ 922

Mon 20/102:40 p.m.YOW - TRS

2 stops17h 25mMultiple Airlines

Mon 3/112:45 p.m.TRS - YOW

2 stops24h 32mMultiple Airlines

Deal found 10/6C$ 983

Wed 3/96:20 p.m.YYZ - TRS

1 stop13h 45mLufthansa

Tue 16/96:30 a.m.TRS - YYZ

1 stop15h 50mLufthansa

Deal found 10/6C$ 1,081

Mon 25/86:00 a.m.YUL - TRS

2 stops46h 25mDelta

Mon 8/911:15 a.m.TRS - YUL

2 stops41h 53mDelta

Deal found 11/6C$ 1,272

Tue 2/95:40 p.m.YYZ - TRS

2 stops18h 55mTAP AIR PORTUGAL

Tue 16/911:15 a.m.TRS - YYZ

2 stops32h 40mTAP AIR PORTUGAL

Deal found 11/6C$ 1,371

Fri 29/89:50 p.m.YUL - TRS

2 stops43h 05mAustrian Airlines

Mon 8/97:25 p.m.TRS - YUL

2 stops24h 25mAustrian Airlines

Deal found 11/6C$ 1,786

Mon 1/99:40 p.m.YYZ - TRS

1 stop14h 55mMultiple Airlines

Mon 15/97:25 p.m.TRS - YYZ

2 stops30h 00mMultiple Airlines

Deal found 11/6C$ 1,001

Thu 28/89:45 p.m.YUL - TRS

1 stop18h 40mMultiple Airlines

Mon 8/96:30 a.m.TRS - YUL

1 stop15h 30mMultiple Airlines

Deal found 11/6C$ 1,004

Tue 26/89:20 p.m.YUL - TRS

2 stops19h 15mLufthansa

Mon 8/96:30 a.m.TRS - YUL

1 stop15h 30mLufthansa

Deal found 11/6C$ 1,144

Mon 1/95:10 p.m.YTZ - TRS

2 stops15h 20mMultiple Airlines

Mon 15/97:25 p.m.TRS - YTZ

2 stops31h 25mMultiple Airlines

Deal found 11/6C$ 1,012

Last-minute flights from Ontario to Trieste
Discover last-minute flight deals from Ontario to Trieste. Data last updated 12 June 2025 and is based on user searches.

Sun 15/65:00 p.m.YYZ - TRS

1 stop15h 30mITA Airways

Mon 23/67:15 p.m.TRS - YYZ

1 stop24h 50mITA Airways

Deal found 10/6C$ 837

Sun 15/64:50 p.m.YTZ - TRS

2 stops15h 40mMultiple Airlines

Mon 23/66:35 a.m.TRS - YTZ

2 stops19h 25mMultiple Airlines

Deal found 10/6C$ 1,066

Mon 16/66:00 p.m.YYZ - TRS

2 stops14h 30mMultiple Airlines

Wed 3/96:35 a.m.TRS - YYZ

2 stops18h 50mMultiple Airlines

Deal found 11/6C$ 1,040

Tue 8/76:35 p.m.YUL - TRS

2 stops33h 50mAustrian Airlines

Tue 15/76:35 a.m.TRS - YUL

2 stops37h 15mAustrian Airlines

Deal found 10/6C$ 1,958

Sun 13/79:45 p.m.YUL - TRS

1 stop18h 50mMultiple Airlines

Fri 18/76:30 a.m.TRS - YUL

1 stop15h 30mMultiple Airlines

Deal found 12/6C$ 1,135

Sun 13/76:30 p.m.YUL - TRS

2 stops22h 05mLufthansa

Sun 3/86:30 a.m.TRS - YUL

2 stops41h 45mLufthansa

Deal found 10/6C$ 1,544

Sun 13/710:45 p.m.YUL - TRS

2 stops33h 45mTAP AIR PORTUGAL

Fri 18/711:15 a.m.TRS - YUL

3 stops29h 23mTAP AIR PORTUGAL

Deal found 12/6C$ 2,894

Fri 25/78:20 p.m.YYZ - TRS

2 stops20h 05mLufthansa

Fri 1/86:30 a.m.TRS - YYZ

2 stops22h 49mLufthansa

Deal found 10/6C$ 1,511

One-way flights from Ontario to Trieste
Search for one-way flight options from Ontario to Trieste. Find affordable one-way fares based on user searches. Data last updated 12 June 2025.

Sat 26/77:55 a.m.YYZ - TRS

3 stops47h 05mMultiple Airlines

Deal found 11/6C$ 458

Sat 26/78:00 p.m.YUL - TRS

2 stops20h 55mMultiple Airlines

Deal found 11/6C$ 511

Wed 23/75:15 p.m.YTZ - TRS

3 stops39h 45mMultiple Airlines

Deal found 9/6C$ 554

Sun 20/76:20 p.m.YYZ - TRS

1 stop13h 45mLufthansa

Deal found 10/6C$ 697

Wed 23/76:00 a.m.YHM - TRS

2 stops30h 30mMultiple Airlines

Deal found 9/6C$ 1,051

Tue 24/65:40 p.m.YYZ - TRS

2 stops23h 15mTAP AIR PORTUGAL

Deal found 10/6C$ 1,183

Sun 22/65:00 p.m.YYZ - TRS

1 stop15h 30mITA Airways

Deal found 10/6C$ 1,261

Fri 25/75:45 p.m.YYZ - TRS

2 stops47h 10mAustrian Airlines

Deal found 10/6C$ 1,422

Thu 26/64:05 p.m.YOW - TRS

2 stops16h 00mLufthansa

Deal found 12/6C$ 1,508

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TorontoTrieste

YYZ - TRS

YYZTRS

Toronto Pearson Intl

Sun 28/9

9:10 p.m.-10:35 p.m.

1 stop19h 25m

Trieste Ronchi dei Legionari

Fri 17/10

6:30 a.m.-4:20 p.m.

1 stop15h 50m

C$ 879

MontrealTrieste

YUL - TRS

YULTRS

Montreal Pierre Elliott Trudeau Intl

Fri 7/11

6:00 p.m.-1:55 p.m.

1 stop13h 55m

Trieste Ronchi dei Legionari

Sat 15/11

6:15 a.m.-11:55 a.m.

1 stop11h 40m

C$ 902

MontrealTrieste

YUL - TRS

YULTRS

Montreal Pierre Elliott Trudeau Intl

Wed 27/8

6:50 p.m.-10:55 p.m.

2 stops22h 05m

Trieste Ronchi dei Legionari

Mon 8/9

6:35 a.m.-5:43 p.m.

2 stops17h 08m

C$ 922

TorontoTrieste

YYZ - TRS

YYZTRS

Toronto Pearson Intl

Sun 28/9

8:20 p.m.-2:05 p.m.

2 stops35h 45m

Trieste Ronchi dei Legionari

Fri 17/10

6:30 a.m.-5:58 p.m.

2 stops17h 28m

C$ 942

OttawaTrieste

YOW - TRS

YOWTRS

Ottawa

Mon 20/10

2:40 p.m.-2:05 p.m.

2 stops17h 25m

Trieste Ronchi dei Legionari

Mon 3/11

2:45 p.m.-9:17 a.m.

2 stops24h 32m

C$ 983

MontrealTrieste

YUL - TRS

YULTRS

Montreal Pierre Elliott Trudeau Intl

Sat 20/9

5:50 p.m.-10:25 p.m.

2 stops22h 35m

Trieste Ronchi dei Legionari

Wed 15/10

6:30 a.m.-5:58 p.m.

2 stops41h 28m

C$ 998

TorontoTrieste

YTZ - TRS

YTZTRS

Toronto Island

Mon 1/9

5:10 p.m.-2:30 p.m.

2 stops15h 20m

Trieste Ronchi dei Legionari

Mon 15/9

7:25 p.m.-8:50 p.m.

2 stops31h 25m

C$ 1,012

TorontoTrieste

YYZ - TRS

YYZTRS

Toronto Pearson Intl

Sat 23/8

5:00 p.m.-10:55 p.m.

1 stop23h 55m

Trieste Ronchi dei Legionari

Sun 14/9

11:15 a.m.-2:05 p.m.

1 stop32h 50m

C$ 1,053

MontrealTrieste

YUL - TRS

YULTRS

Montreal Pierre Elliott Trudeau Intl

Sun 2/11

4:50 p.m.-6:30 p.m.

2 stops43h 40m

Trieste Ronchi dei Legionari

Sun 23/11

3:15 p.m.-3:15 p.m.

2 stops30h 00m

C$ 1,196

MontrealTrieste

YUL - TRS

YULTRS

Montreal Pierre Elliott Trudeau Intl

Mon 25/8

6:00 a.m.-10:25 a.m.

2 stops46h 25m

Trieste Ronchi dei Legionari

Thu 11/9

11:15 a.m.-11:08 p.m.

2 stops41h 53m

C$ 1,272

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 21 results

Best time to book a flight from Ontario to Trieste

Have a flexible travel schedule? Discover the best time to fly to Trieste 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 Trieste

What is the cheapest time of day to fly from ON to TRS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Trieste as you normally would.

Rainfall in Trieste by month

In terms of precipitation, rainfall in Trieste ranges from 62.0 - 114.0 mm per month. November is typically the wettest month, when rainfall can reach 114.0 mm. February is typically the driest time to visit Trieste when rainfall is around 62.0 mm.

Temperature in Trieste by month

If weather is an important factor for your trip to Trieste, 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 24.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Trieste

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.

Delta

8.0

Very good

7,950 reviews

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.

KLM

7.8

Good

1,358 reviews

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.

Austrian Airlines

7.6

Good

802 reviews

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.

TAP AIR PORTUGAL

7.1

Good

1,885 reviews

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.

ITA Airways

6.7

Okay

990 reviews

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.

Related info for your journey

What airport do you fly into for flights to Trieste from Ontario?
Trieste Ronchi dei Legionari (TRS) is the airport you will fly into if you book a flight from Ontario to Trieste. It is only a 29.3 km journey from Ronchi dei Legionari (TRS) to Trieste’s city centre.
What are the cheapest airlines to fly from Region of Ontario to Trieste one-way?
To fly one-way, consider booking your trip with Lufthansa, which is currently one of the cheapest options available, starting at C$ 697. TAP AIR PORTUGAL flights start at C$ 1,183 while deals on ITA Airways start at C$ 1,261 one-way.
What are the most popular routes from Region of Ontario to Trieste?
The most popular flight routes from Region of Ontario to Trieste are Montreal Pierre Elliott Trudeau Intl - Trieste Ronchi dei Legionari, Toronto Pearson Intl - Trieste Ronchi dei Legionari and North Bay - Trieste Ronchi dei Legionari.
Can I find deals for flights from Ontario to Trieste that include hotel bookings?
Yes. In addition to deals on Ontario to Trieste flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Trieste?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Trieste.
Can I find deals for business class flights from Ontario to Trieste?
Yes. Cheapflights offers flight deals from Ontario to Trieste by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Ontario to Trieste

Top 2 airlines flying from Ontario to Trieste

Airline	Cheapest	Average	Flexibility	On-time
ITA Airways	CheapestC$ 894	AverageC$ 1,283	FlexibilityNo cancel fee	On-time81%	Search ITA Airways flights
Lufthansa	CheapestC$ 926	AverageC$ 1,028	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

Fly with Cheapflights

How does Cheapflights help users find flights from Ontario to Trieste?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to Trieste. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Trieste?

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 Trieste.

Can Cheapflights find flights from Ontario to Trieste with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to Trieste flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ontario to Trieste become cheaper?

Yes, Cheapflights offers price alerts on Ontario to Trieste flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Ontario to Trieste from C$ 458

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 26/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to Trieste

Keep the following information in mind while searching for Ontario to Trieste flight deals. Data was last updated 12 June 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Trieste

Cheapest flights from Ontario to TriesteExplore the most affordable flight options available from Ontario to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Explore the most affordable flight options available from Ontario to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Trieste that are best for you.

Best time to book a flight from Ontario to Trieste

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

Cheapflights Insights

Everything you need to know about your flight from Ontario to Trieste

What is the cheapest time of day to fly from ON to TRS?

Find hourly flight availability from Ontario to Trieste. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 June 2025.

Rainfall in Trieste by month

Plan your trip to Trieste by taking into account the average rainfall totals by month.

Temperature in Trieste by month

Plan your trip to Trieste by taking into account the average temperature totals by month.

Reviews of airlines servicing Trieste

Related info for your journey

Find useful and relevant information for your journey from Ontario to Trieste. 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 Trieste from Ontario?

What are the cheapest airlines to fly from Region of Ontario to Trieste one-way?

What are the most popular routes from Region of Ontario to Trieste?

Can I find deals for flights from Ontario to Trieste that include hotel bookings?

How can I find direct flights from Ontario to Trieste?

Can I find deals for business class flights from Ontario to Trieste?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Trieste

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

Top 2 airlines flying from Ontario to Trieste

Fly with Cheapflights

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 Trieste?

Why should you use Cheapflights to find cheap flight tickets from Ontario to Trieste?

Can Cheapflights find flights from Ontario to Trieste with no change fees?

Can Cheapflights notify me if prices for flights from Ontario to Trieste become cheaper?

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Travel Smart

Cheapest flights from Ontario to Trieste
Explore the most affordable flight options available from Ontario to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.