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$724+ Cheap flights from Ontario (ONT) to Slovenia

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LJU
Jan 22 — Jan 291
Wed 1/22
Wed 1/29
1 adult, Economy
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Cheap flight deals from Ontario to Slovenia

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Slovenia (SI0). 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 January 17, 2025.

Round-trip from

$724
(KLM)
From Ontario to Slovenia
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Find flight deals from Ontario to Slovenia

Cheapest flights from Ontario to Slovenia
Explore the most affordable flight options available from Ontario to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 17, 2025.

This KLM deal was found by Cheapflights users on 1/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/186:00 amONT - LJU
2 stops20h 40mKLM
Mon 2/2412:25 pmLJU - ONT
2 stops19h 27mKLM
Deal found 1/16$724
This Delta deal was found by Cheapflights users on 1/16. 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 4/232:36 pmONT - LJU
2 stops35h 29mDelta
Wed 5/1412:20 pmLJU - ONT
2 stops19h 20mDelta
Deal found 1/16$816
This United deal was found by Cheapflights users on 1/16. 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.
Thu 4/103:55 pmONT - LJU
2 stops21h 05mMultiple Airlines
Thu 4/1710:10 amLJU - ONT
2 stops19h 32mMultiple Airlines
Deal found 1/16$875
This Air Serbia deal was found by Cheapflights users on 1/16. 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.
Mon 5/2611:37 pmONT - LJU
2 stops24h 18mAir Serbia
Tue 6/109:50 amLJU - ONT
2 stops45h 32mAir Serbia
Deal found 1/16$1,165
This British Airways deal was found by Cheapflights users on 1/16. 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.
Thu 8/215:00 pmONT - LJU
2 stops18h 20mBritish Airways
Sun 8/249:25 pmLJU - ONT
2 stops29h 07mBritish Airways
Deal found 1/16$1,175

Find flights from Ontario to Slovenia within your budget

Customize your flight search to find flights from Ontario to Slovenia 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 January 17, 2025.

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Depart

Return

Price

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Tue 2/18

6:00 am-11:40 am

2 stops20h 40m

Ljubljana Joze Pucnik

Mon 2/24

12:25 pm-10:52 pm

2 stops19h 27m

$724

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Wed 4/23

2:36 pm-11:05 am

2 stops35h 29m

Ljubljana Joze Pucnik

Wed 5/14

12:20 pm-10:40 pm

2 stops19h 20m

$816

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Thu 4/10

3:55 pm-10:00 pm

2 stops21h 05m

Ljubljana Joze Pucnik

Thu 4/17

10:10 am-8:42 pm

2 stops19h 32m

$875

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Mon 5/26

11:37 pm-8:55 am

2 stops24h 18m

Ljubljana Joze Pucnik

Tue 6/10

9:50 am-10:22 pm

2 stops45h 32m

$1,165

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Sat 5/31

1:32 pm-8:40 pm

2 stops22h 08m

$1,239

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Fri 5/30

11:30 am-7:15 pm

2 stops22h 45m

$1,284

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Best time to book a flight from Ontario to Slovenia

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

Travel insights for flights from Ontario to Slovenia

Get recent, data-driven insights about flights from Ontario to Slovenia including ideal travel times, pricing trends, and more.

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

Currently, February is the cheapest month in which you can book a flight from Ontario to Slovenia (average of $710). Flying from Ontario to Slovenia in June is currently the most expensive (average of $1,520). 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.

Rainfall in Slovenia by month

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

In terms of precipitation, rainfall in Slovenia ranges from 1.6 - 2.8 inches per month. October is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Slovenia when rainfall is around 1.6 in.

Temperature in Slovenia by month

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

If weather is an important factor for your trip to Slovenia, 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 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Slovenia

Get insights into the airlines that provide service to Slovenia. 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 Slovenia. Reviews last updated January 17, 2025.
Delta
8.0
Very good
8,511 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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

Delta
8.0
Very good
8,511 reviews
Delta
8.0
Very good
8,511 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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

KLM
7.8
Good
1,339 reviews
Delta
8.0
Very good
8,511 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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

British Airways
6.6
Okay
6,823 reviews
Delta
8.0
Very good
8,511 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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

Air Serbia
6.4
Okay
197 reviews
Delta
8.0
Very good
8,511 reviews

Food

7.3

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

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 Slovenia. 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 Slovenia?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Slovenia. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Ontario to Slovenia (average of $710). Flying from Ontario to Slovenia in June is currently the most expensive (average of $1,520). 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

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