HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ljubljana

$481+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LJU
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Ljubljana with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 29, 2025.

Round-trip from

$718
(Delta)

One-way from

$481
(Travelocity)

Popular in

December

Cheapest in

November

Average price

$1,090
From Ontario to Ljubljana Joze Pucnik
Search Deals
One-way flight from Ontario to Ljubljana Joze Pucnik
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($72 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 29, 2025.

This Delta deal was found by Cheapflights users on 7/27. 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 11/1612:50 pmLJU - ONT
2 stops42h 52mDelta
Deal found 7/27$718
This Air Serbia deal was found by Cheapflights users on 7/28. 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 9/810:56 pmONT - LJU
2 stops25h 04mAir Serbia
Tue 9/169:40 amLJU - ONT
2 stops44h 49mAir Serbia
Deal found 7/28$1,118
This British Airways deal was found by Cheapflights users on 7/27. 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.
Sun 8/1010:50 amONT - LJU
2 stops18h 25mBritish Airways
Tue 8/265:00 pmLJU - ONT
2 stops34h 24mBritish Airways
Deal found 7/27$2,516
This United deal was found by Cheapflights users on 7/28. 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 7/316:06 amONT - LJU
2 stops22h 14mMultiple Airlines
Sat 8/26:30 amLJU - ONT
3 stops24h 36mMultiple Airlines
Deal found 7/28$2,584

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 29, 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

12:50 pm-10:42 pm

2 stops42h 52m

$718

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Mon 9/8

10:56 pm-9:00 am

2 stops25h 04m

Ljubljana Joze Pucnik

Tue 9/16

9:40 am-9:29 pm

2 stops44h 49m

$1,118

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Sun 8/10

10:50 am-2:15 pm

2 stops18h 25m

Ljubljana Joze Pucnik

Tue 8/26

5:00 pm-6:24 pm

2 stops34h 24m

$2,516

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Tue 8/26

12:47 pm-5:15 pm

2 stops19h 28m

$481

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Mon 8/18

11:59 pm-9:00 am

2 stops24h 01m

$738

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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 $1,443). 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 29, 2025.
Read through reviews of airlines operating flights from Ontario to Ljubljana, such as Delta, British Airways, and Air Serbia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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
7,208 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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
196 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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 $1,443). 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

Traveling to a place near Ljubljana?

Book flights to Ljubljana if you plan to visit one of these locations
Kranjska Gora

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

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.