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Cheap flights from Ontario to Slovenia from $561

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Slovenia departing on 4/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ontario to Slovenia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:05 pm - 10:55 pm
ONT
-
LJU
20h 50m
2 stops
Delta Logo
6:00 am - 5:15 pm
LJU
-
ONT
20h 15m
2 stops
$561Delta
Wed, Apr 15 - Tue, Apr 21
Multiple Airlines Logo
7:30 am - 8:45 am
ONT
-
LJU
40h 15m
2 stops
Multiple Airlines Logo
9:30 am - 7:56 pm
LJU
-
ONT
43h 26m
2 stops
$731Multiple Airlines
Tue, May 5 - Thu, May 21
British Airways Logo
4:52 pm - 8:30 pm
ONT
-
LJU
18h 38m
2 stops
British Airways Logo
9:25 pm - 10:36 pm
LJU
-
ONT
34h 11m
2 stops
$740British Airways
Thu, Apr 16 - Sun, May 3
British Airways Logo
1:00 pm - 4:15 pm
ONT
-
LJU
42h 15m
2 stops
British Airways Logo
9:25 pm - 9:50 pm
LJU
-
ONT
33h 25m
2 stops
$866British Airways
Fri, Aug 21 - Sun, Sep 13
British Airways Logo
10:59 am - 4:20 pm
ONT
-
LJU
20h 21m
2 stops
British Airways Logo
3:10 pm - 10:38 pm
LJU
-
ONT
40h 28m
2 stops
$941British Airways
Mon, May 18 - Mon, May 25
British Airways Logo
10:55 am - 2:15 pm
ONT
-
LJU
18h 20m
2 stops
British Airways Logo
6:00 pm - 4:22 pm
LJU
-
ONT
31h 22m
2 stops
$1,188British Airways
Sun, Apr 19 - Wed, Apr 22
Multiple Airlines Logo
11:59 pm - 8:45 am
ONT
-
LJU
23h 46m
2 stops
Multiple Airlines Logo
9:40 am - 9:29 pm
LJU
-
ONT
44h 49m
2 stops
$1,329Multiple Airlines
Fri, Aug 21 - Sun, Sep 13
British Airways Logo
12:46 pm - 4:15 pm
ONT
-
LJU
18h 29m
2 stops
British Airways Logo
12:20 pm - 9:51 pm
LJU
-
ONT
18h 31m
2 stops
$1,364British Airways
Sat, Jul 4 - Sat, Jul 18
Turkish Airlines Logo
11:25 pm - 12:55 pm
ONT
-
LJU
28h 30m
2 stops
Turkish Airlines Logo
8:15 pm - 10:09 pm
LJU
-
ONT
34h 54m
2 stops
$1,380Turkish Airlines
Sat, May 23 - Sun, May 31
Multiple Airlines Logo
1:47 pm - 7:20 pm
ONT
-
LJU
20h 33m
2 stops
Multiple Airlines Logo
9:40 am - 11:56 pm
LJU
-
ONT
23h 16m
2 stops
$1,429Multiple Airlines
Tue, Jun 16 - Fri, Jun 26

British Airways flights from Ontario to Slovenia

Our best British Airways deals on Ontario to Slovenia flight tickets
British Airways
May 18
ONT10:59 amOntario
20h 21m
2 stops
LJU4:20 pmLjubljana Joze Pucnik
May 25
LJU3:10 pmLjubljana Joze Pucnik
40h 28m
2 stops
ONT10:38 pmOntario
$941
British Airways
May 18
ONT7:30 amOntario
23h 50m
2 stops
LJU4:20 pmLjubljana Joze Pucnik
May 25
LJU3:10 pmLjubljana Joze Pucnik
39h 47m
2 stops
ONT9:57 pmOntario
$1,012
British Airways
Apr 19
ONT10:55 amOntario
18h 20m
2 stops
LJU2:15 pmLjubljana Joze Pucnik
Apr 22
LJU6:00 pmLjubljana Joze Pucnik
31h 22m
2 stops
ONT4:22 pmOntario
$1,188

momondo Fare Finder

 
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, momondo users made 832,500 searches. Data last updated February 23, 2026.
Use the filters below to find and compare flights from Ontario to Slovenia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Wed 4/15

5:05 pm-10:55 pm

2 stops20h 50m

Ljubljana Joze Pucnik

Tue 4/21

6:00 am-5:15 pm

2 stops20h 15m

$561

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Tue 5/5

7:30 am-8:45 am

2 stops40h 15m

Ljubljana Joze Pucnik

Thu 5/21

9:30 am-7:56 pm

2 stops43h 26m

$731

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Thu 4/16

4:52 pm-8:30 pm

2 stops18h 38m

Ljubljana Joze Pucnik

Sun 5/3

9:25 pm-10:36 pm

2 stops34h 11m

$740

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Fri 8/21

1:00 pm-4:15 pm

2 stops42h 15m

Ljubljana Joze Pucnik

Sun 9/13

9:25 pm-9:50 pm

2 stops33h 25m

$866

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Mon 5/18

10:59 am-4:20 pm

2 stops20h 21m

Ljubljana Joze Pucnik

Mon 5/25

3:10 pm-10:38 pm

2 stops40h 28m

$941

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Sun 4/19

10:55 am-2:15 pm

2 stops18h 20m

Ljubljana Joze Pucnik

Wed 4/22

6:00 pm-4:22 pm

2 stops31h 22m

$1,188

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Fri 8/21

11:59 pm-8:45 am

2 stops23h 46m

Ljubljana Joze Pucnik

Sun 9/13

9:40 am-9:29 pm

2 stops44h 49m

$1,329

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Sat 7/4

12:46 pm-4:15 pm

2 stops18h 29m

Ljubljana Joze Pucnik

Sat 7/18

12:20 pm-9:51 pm

2 stops18h 31m

$1,364

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Sat 5/23

11:25 pm-12:55 pm

2 stops28h 30m

Ljubljana Joze Pucnik

Sun 5/31

8:15 pm-10:09 pm

2 stops34h 54m

$1,380

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Tue 6/16

1:47 pm-7:20 pm

2 stops20h 33m

Ljubljana Joze Pucnik

Fri 6/26

9:40 am-11:56 pm

2 stops23h 16m

$1,429

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Slovenia from

How to get the cheapest flight ticket from Ontario to Slovenia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Slovenia?

British Airways, Delta, and Iberia are the most popular carriers operating from Ontario to Slovenia

What airlines fly to Slovenia?

SWISS, Lufthansa and Delta are the top three most popular airlines that fly to Slovenia from Ontario according to our data. SWISS is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Slovenia. Keep in mind that there are 5 different airlines that fly to Slovenia on a routine basis, so you have a few additional options to choose from.

Cheap Ontario to Slovenia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Slovenia

Fastest flight time

18h 29m

Direct flights

None
The fastest flight from Ontario to Slovenia takes 18h 29m
There are no direct flights from Ontario to Slovenia. There are no popular flight routes from Ontario to Slovenia.
Search flight deals

  • When did momondo last update prices for flights from Ontario Airport to Slovenia?

    Prices for flights from Ontario Airport to Slovenia are updated daily.

  • How old do you have to be to fly from Ontario Airport to Slovenia?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Slovenia.

  • What documentation or ID do you need to fly to Slovenia?

    The necessary travel and health documents for your Slovenia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Slovenia?

Finding the right flight to Slovenia from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Slovenia quick and easy, saving you time and money.

Can I find flights from Ontario to Slovenia with flexible booking policies on momondo?

All flight searches from Ontario to Slovenia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Slovenia?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Slovenia.

I’m not ready to book a flight from Ontario to Slovenia right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Slovenia from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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