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$ 649. ITA Airways flights start at C$ 1,252 while deals on Austrian Airlines start at C$ 1,269 one-way.

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.

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).

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 Ottawa - 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$ 1,197 for the month, but tickets can be as low as C$ 897. 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$ 430+ Flights from Ontario to Trieste

Cheap flight deals from Ontario to Trieste

Round-trip from	C$ 882
One-way from	C$ 482
Popular in	February
Cheapest in	June
Average price	C$ 1,380

ITA Airways
14/9-18/9
2 total stops
56h 45m total
Ontario to Trieste

Search Deals

13/9
3 total stops
56h 10m total
Ontario to Trieste

Search Deals

Highest demand for flights based on searches. 24% potential increase in price (C$ 541 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (C$ 67 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 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 31 July 2025.

Sun 14/95:00 p.m.YYZ - TRS

1 stop23h 55mITA Airways

Thu 18/911:15 a.m.TRS - YYZ

1 stop32h 50mITA Airways

Deal found 31/7C$ 882

Thu 16/107:40 p.m.YUL - TRS

2 stops16h 55mMultiple Airlines

Mon 17/116:35 a.m.TRS - YUL

2 stops15h 35mMultiple Airlines

Deal found 31/7C$ 886

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 30/7C$ 933

Sun 28/98:40 p.m.YYZ - TRS

2 stops19h 55mLufthansa

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

2 stops18h 00mLufthansa

Deal found 30/7C$ 1,009

Sun 14/98:50 a.m.YTZ - TRS

3 stops30h 05mMultiple Airlines

Thu 18/97:15 p.m.TRS - YTZ

3 stops26h 40mMultiple Airlines

Deal found 31/7C$ 1,124

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

2 stops17h 25mMultiple Airlines

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

2 stops24h 33mMultiple Airlines

Deal found 30/7C$ 1,158

Sun 2/114:45 p.m.YUL - TRS

2 stops43h 45mSWISS

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

2 stops29h 55mSWISS

Deal found 31/7C$ 1,222

Sun 17/89:45 p.m.YUL - TRS

1 stop18h 50mLufthansa

Sun 28/96:30 a.m.TRS - YUL

1 stop11h 35mLufthansa

Deal found 30/7C$ 1,356

Sat 11/101:55 p.m.YOW - TRS

2 stops18h 35mLufthansa

Sat 18/106:30 a.m.TRS - YOW

2 stops16h 34mLufthansa

Deal found 31/7C$ 1,398

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 31 July 2025.

Sun 14/95:00 p.m.YYZ - TRS

1 stop23h 55mITA Airways

Thu 18/911:15 a.m.TRS - YYZ

1 stop32h 50mITA Airways

Deal found 31/7C$ 882

Thu 16/107:40 p.m.YUL - TRS

2 stops16h 55mMultiple Airlines

Mon 17/116:35 a.m.TRS - YUL

2 stops15h 35mMultiple Airlines

Deal found 31/7C$ 886

Sun 28/98:40 p.m.YYZ - TRS

2 stops19h 55mLufthansa

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

2 stops18h 00mLufthansa

Deal found 30/7C$ 1,009

Sun 2/114:45 p.m.YUL - TRS

2 stops43h 45mSWISS

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

2 stops29h 55mSWISS

Deal found 31/7C$ 1,222

Sun 17/810:45 p.m.YUL - TRS

2 stops37h 45mTAP AIR PORTUGAL

Sun 28/96:35 a.m.TRS - YUL

2 stops20h 55mTAP AIR PORTUGAL

Deal found 30/7C$ 1,842

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 30/7C$ 933

Sat 13/96:35 p.m.YUL - TRS

2 stops22h 20mAustrian Airlines

Sat 27/97:15 p.m.TRS - YUL

2 stops24h 35mAustrian Airlines

Deal found 29/7C$ 2,016

Sun 17/89:45 p.m.YUL - TRS

1 stop18h 50mLufthansa

Sun 28/96:30 a.m.TRS - YUL

2 stops20h 23mLufthansa

Deal found 30/7C$ 1,133

Sun 14/98:50 a.m.YTZ - TRS

3 stops30h 05mMultiple Airlines

Thu 18/97:15 p.m.TRS - YTZ

3 stops26h 40mMultiple Airlines

Deal found 31/7C$ 1,124

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

2 stops17h 25mMultiple Airlines

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

2 stops24h 33mMultiple Airlines

Deal found 30/7C$ 1,158

Sat 11/101:55 p.m.YOW - TRS

2 stops18h 35mLufthansa

Sat 18/106:30 a.m.TRS - YOW

2 stops16h 34mLufthansa

Deal found 31/7C$ 1,398

Last-minute flights from Ontario to Trieste
Discover last-minute flight deals from Ontario to Trieste. Data last updated 31 July 2025 and is based on user searches.

Mon 4/88:25 p.m.YUL - TRS

1 stop16h 05mMultiple Airlines

Mon 18/86:35 a.m.TRS - YUL

2 stops20h 55mMultiple Airlines

Deal found 30/7C$ 1,634

Mon 11/85:00 p.m.YYZ - TRS

2 stops21h 55mMultiple Airlines

Sun 9/117:15 p.m.TRS - YYZ

2 stops25h 35mMultiple Airlines

Deal found 31/7C$ 958

Fri 15/85:00 p.m.YYZ - TRS

1 stop15h 30mITA Airways

Sun 31/811:15 a.m.TRS - YYZ

2 stops56h 48mITA Airways

Deal found 30/7C$ 1,284

Fri 15/86:20 p.m.YYZ - TRS

1 stop13h 45mLufthansa

Sun 31/86:30 a.m.TRS - YYZ

2 stops13h 45mLufthansa

Deal found 31/7C$ 1,488

Sun 17/89:45 p.m.YUL - TRS

1 stop18h 50mLufthansa

Sun 28/96:30 a.m.TRS - YUL

2 stops20h 23mLufthansa

Deal found 30/7C$ 1,133

Sun 17/810:45 p.m.YUL - TRS

2 stops37h 45mTAP AIR PORTUGAL

Sun 28/96:35 a.m.TRS - YUL

2 stops20h 55mTAP AIR PORTUGAL

Deal found 30/7C$ 1,842

Fly from

Fly to

Route

Depart

Return

Price

TorontoTrieste

YYZ - TRS

YYZTRS

Toronto Pearson Intl

Sun 14/9

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

1 stop23h 55m

Trieste Ronchi dei Legionari

Thu 18/9

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

1 stop32h 50m

C$ 882

MontrealTrieste

YUL - TRS

YULTRS

Montreal Pierre Elliott Trudeau Intl

Thu 16/10

7:40 p.m.-6:35 p.m.

2 stops16h 55m

Trieste Ronchi dei Legionari

Mon 17/11

6:35 a.m.-4:10 p.m.

2 stops15h 35m

C$ 886

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$ 933

TorontoTrieste

YYZ - TRS

YYZTRS

Toronto Pearson Intl

Sun 28/9

8:40 p.m.-10:35 p.m.

2 stops19h 55m

Trieste Ronchi dei Legionari

Fri 17/10

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

2 stops18h 00m

C$ 1,009

TorontoTrieste

YTZ - TRS

YTZTRS

Toronto Island

Sun 14/9

8:50 a.m.-8:55 p.m.

3 stops30h 05m

Trieste Ronchi dei Legionari

Thu 18/9

7:15 p.m.-3:55 p.m.

3 stops26h 40m

C$ 1,124

MontrealTrieste

YUL - TRS

YULTRS

Montreal Pierre Elliott Trudeau Intl

Sun 17/8

9:45 p.m.-10:35 p.m.

1 stop18h 50m

Trieste Ronchi dei Legionari

Sun 28/9

6:30 a.m.-8:53 p.m.

2 stops20h 23m

C$ 1,133

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.-9:18 a.m.

2 stops24h 33m

C$ 1,158

MontrealTrieste

YUL - TRS

YULTRS

Montreal Pierre Elliott Trudeau Intl

Sun 2/11

4:45 p.m.-6:30 p.m.

2 stops43h 45m

Trieste Ronchi dei Legionari

Sun 23/11

3:15 p.m.-3:10 p.m.

2 stops29h 55m

C$ 1,222

OttawaTrieste

YOW - TRS

YOWTRS

Ottawa

Sat 11/10

1:55 p.m.-2:30 p.m.

2 stops18h 35m

Trieste Ronchi dei Legionari

Sat 18/10

6:30 a.m.-5:04 p.m.

2 stops16h 34m

C$ 1,398

MontrealTrieste

YUL - TRS

YULTRS

Montreal Pierre Elliott Trudeau Intl

Sun 17/8

10:45 p.m.-6:30 p.m.

2 stops37h 45m

Trieste Ronchi dei Legionari

Sun 28/9

6:35 a.m.-9:30 p.m.

2 stops20h 55m

C$ 1,842

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Showing 1-10 of 13 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.

Reviews of airlines servicing Trieste

Read reviews from past customers who have flown Austrian Airlines,TAP AIR PORTUGAL, andLufthansa from Ontario to Trieste. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Austrian Airlines

7.6

Good

823 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Austrian Airlines

7.6

Good

823 reviews

Austrian Airlines

7.6

Good

823 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

TAP AIR PORTUGAL

7.1

Good

1,933 reviews

Austrian Airlines

7.6

Good

823 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Lufthansa

6.8

Okay

7,275 reviews

Austrian Airlines

7.6

Good

823 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

ITA Airways

6.7

Okay

1,011 reviews

Austrian Airlines

7.6

Good

823 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

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$ 649. ITA Airways flights start at C$ 1,252 while deals on Austrian Airlines start at C$ 1,269 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 Ottawa - 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$ 904	AverageC$ 1,222	FlexibilityNo cancel fee	On-time81%	Search ITA Airways flights
Lufthansa	CheapestC$ 937	AverageC$ 1,041	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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Cheap flights from Ontario to Trieste from C$ 430

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 22/9. 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 31 July 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 31 July 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 31 July 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 31 July 2025.

Reviews of airlines servicing Trieste

Read reviews from past customers who have flown Austrian Airlines,TAP AIR PORTUGAL, andLufthansa from Ontario to Trieste. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

100% Free

Book with Flexibility

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 31 July 2025.