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Ljubljana

$505+ Cheap flights from Ontario (ONT) to Ljubljana (LJU)

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LJU
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Ontario to Ljubljana

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Ljubljana (LJU). 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 July 3, 2025.

Round-trip from

$716
(Delta)

One-way from

$505
(Priceline)

Popular in

June

Cheapest in

March

Average price

$1,090
From Ontario to Ljubljana Joze Pucnik
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One-way flight from Ontario to Ljubljana Joze Pucnik
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Highest demand for flights based on searches. 21% potential increase in price ($258 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($60 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Ontario to Ljubljana

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

This Delta deal was found by Cheapflights users on 7/1. 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.
Wed 11/126:00 amONT - LJU
2 stops20h 40mDelta
Sun 11/1612:25 pmLJU - ONT
2 stops43h 16mDelta
Deal found 7/1$716
This United deal was found by Cheapflights users on 7/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/125:40 amONT - LJU
2 stops22h 05mMultiple Airlines
Wed 11/196:35 amLJU - ONT
2 stops19h 59mMultiple Airlines
Deal found 7/1$859
This Air France deal was found by Cheapflights users on 7/1. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:00 amONT - LJU
2 stops20h 05mKLM
Wed 10/812:35 pmLJU - ONT
2 stops20h 11mKLM
Deal found 7/1$1,047
This Air Serbia deal was found by Cheapflights users on 7/1. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2810:56 pmONT - LJU
2 stops25h 04mAir Serbia
Mon 10/69:40 amLJU - ONT
2 stops44h 49mAir Serbia
Deal found 7/1$1,088
This British Airways deal was found by Cheapflights users on 7/2. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/294:45 pmONT - LJU
2 stops15h 30mBritish Airways
Wed 8/66:00 pmLJU - ONT
2 stops33h 17mBritish Airways
Deal found 7/2$1,093

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Ljubljana 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 July 3, 2025.
Use the filters below to find and compare flights from Ontario to Ljubljana that are best for you.

Fly from

Ontario

Fly to

Ljubljana

Route

Depart

Return

Price

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Wed 11/12

6:00 am-11:40 am

2 stops20h 40m

Ljubljana Joze Pucnik

Sun 11/16

12:25 pm-10:41 pm

2 stops43h 16m

$716

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Wed 11/12

5:40 am-12:45 pm

2 stops22h 05m

Ljubljana Joze Pucnik

Wed 11/19

6:35 am-10:45 pm

2 stops25h 10m

$859

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Thu 10/2

7:00 am-12:05 pm

2 stops20h 05m

Ljubljana Joze Pucnik

Wed 10/8

12:35 pm-11:46 pm

2 stops20h 11m

$1,047

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Sun 9/28

10:56 pm-9:00 am

2 stops25h 04m

Ljubljana Joze Pucnik

Mon 10/6

9:40 am-9:29 pm

2 stops44h 49m

$1,088

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Tue 7/29

4:45 pm-5:15 pm

2 stops15h 30m

Ljubljana Joze Pucnik

Wed 8/6

6:00 pm-6:17 pm

2 stops33h 17m

$1,093

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Thu 9/11

2:30 pm-8:20 pm

2 stops20h 50m

$505

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Thu 9/11

7:00 am-11:05 am

2 stops19h 05m

$845

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from Ontario to Ljubljana

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

What is the cheapest month to book a flight from Ontario to Ljubljana?

Currently, February is the cheapest month in which you can book a flight from Ontario to Ljubljana (average of $710). Flying from Ontario to Ljubljana in June is currently the most expensive (average of $1,449). 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 Ljubljana

Get insights into the airlines that provide service to Ljubljana. 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 Ljubljana. Reviews last updated July 3, 2025.
Read through reviews of airlines operating flights from Ontario to Ljubljana, such as Delta, KLM, and British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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
7,970 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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.
KLM
7.8
Good
1,366 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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.
British Airways
6.6
Okay
7,093 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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 Serbia
6.3
Okay
197 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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

Find useful and relevant information for your journey from Ontario to Ljubljana. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

  • How can I find direct flights from Ontario to Ljubljana?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Ljubljana 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 Ljubljana?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Ljubljana (average of $710). Flying from Ontario to Ljubljana in June is currently the most expensive (average of $1,449). 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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