$309 Find Cheap Flights from Newark Liberty Airport to Slovenia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Newark to Slovenia departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap Newark to Slovenia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Newark to Slovenia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Newark to Slovenia

Wed, Feb 25 - Tue, Mar 3
LOT Logo
11:10 pm - 1:05 pm
EWR
-
LJU
31h 55m
1 stop
LOT Logo
5:10 pm - 9:00 pm
LJU
-
EWR
33h 50m
1 stop
$472LOT
Wed, Feb 25 - Wed, Mar 25
Lufthansa Logo
8:50 pm - 12:40 pm
EWR
-
LJU
9h 50m
1 stop
Lufthansa Logo
10:00 am - 8:05 pm
LJU
-
EWR
15h 05m
1 stop
$481Lufthansa
Wed, Feb 25 - Tue, Mar 3
Lufthansa Logo
8:50 pm - 12:40 pm
EWR
-
LJU
9h 50m
1 stop
Lufthansa Logo
1:20 pm - 7:05 pm
LJU
-
EWR
11h 45m
1 stop
$482Lufthansa
Sun, Feb 15 - Tue, Feb 24
SWISS Logo
10:00 pm - 2:20 pm
EWR
-
LJU
10h 20m
1 stop
SWISS Logo
2:55 pm - 8:30 pm
LJU
-
EWR
11h 35m
1 stop
$485SWISS
Wed, Feb 25 - Thu, Mar 5
SWISS Logo
10:00 pm - 1:35 pm
EWR
-
LJU
9h 35m
1 stop
SWISS Logo
2:25 pm - 8:30 pm
LJU
-
EWR
12h 05m
1 stop
$491SWISS
Mon, Apr 13 - Thu, Apr 23
SWISS Logo
9:45 pm - 2:00 pm
EWR
-
LJU
10h 15m
1 stop
SWISS Logo
2:50 pm - 8:15 pm
LJU
-
EWR
11h 25m
1 stop
$492SWISS
Tue, Mar 3 - Tue, Mar 10
SWISS Logo
10:00 pm - 2:05 pm
EWR
-
LJU
10h 05m
1 stop
SWISS Logo
2:55 pm - 9:30 pm
LJU
-
EWR
11h 35m
1 stop
$494SWISS
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
10:30 am - 2:05 pm
EWR
-
LJU
21h 35m
2 stops
Multiple Airlines Logo
2:55 pm - 9:30 pm
LJU
-
EWR
11h 35m
1 stop
$495Multiple Airlines
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
6:55 am - 10:25 pm
EWR
-
LJU
33h 30m
2 stops
Multiple Airlines Logo
2:55 pm - 9:30 pm
LJU
-
EWR
11h 35m
1 stop
$504Multiple Airlines
Mon, Mar 2 - Wed, Mar 11
Multiple Airlines Logo
3:30 pm - 10:25 pm
EWR
-
LJU
48h 55m
2 stops
Multiple Airlines Logo
2:55 pm - 9:30 pm
LJU
-
EWR
11h 35m
1 stop
$505Multiple Airlines
Booking Insights

KAYAK's insights & trends for Newark to Slovenia flights

Get data-powered insights and trends into flights from Newark to Slovenia to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Newark Airport to Slovenia?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Newark Airport to Slovenia were found on LOT ($472) and Lufthansa ($481).

Good to know

Low seasonNovember
Cheapest flight$309
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 30% increase in price.
Flight from Newark Liberty Airport to Ljubljana

FAQs - booking Slovenia flights

  • How does KAYAK find such low prices on flights from Newark Liberty Airport to Slovenia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Newark Liberty Airport to Slovenia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Newark Liberty Airport to Slovenia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Newark Liberty Airport to Slovenia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Newark Liberty Airport to Slovenia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Newark Liberty Airport to Slovenia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Newark Liberty Airport to Slovenia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Newark Liberty Airport to Slovenia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Newark to Slovenia

 
Need help choosing which airline to fly with from Newark to Slovenia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
SWISSOverall score based on 1855 reviews
8.3Crew
6.8Entertainment
7.1Food
7.4Comfort
7.7Boarding
Airline reviews

The trip was great until my luggage was lost on transfer from United to Swiss. It took Swiss 3 days to get my luggage to me though it was located almost immediately.

10.0 ExcellentRuth, Jan 2026
IAH - AMS
Read more SWISS reviews

The trip was great until my luggage was lost on transfer from United to Swiss. It took Swiss 3 days to get my luggage to me though it was located almost immediately.

Horrible!! The WiFi was not working, the food was awful

We’ve never been more uncomfortable on a flight than we have on this particular one. The seats in front of us reclined so far back that when the person reclined their seat of broccoli, it almost hit me in the face and left me with literally no room to move that said I had to recline my seed in which made the person behind me upset. It seemed like the seats also would recline without even pressing the button in the armrest and would unrecline as well for that same reason, and it also seemed that some seats reclined more than others. The bottom cushions of the seat were so thin that even after one hour of an 11 hour flight, our tailbones were so sore. It seemed like an overall old airplane. It also didn’t have individual air vents and it was extremely hot the entire flight. Several passengers were commenting on how hot it was. The breakfast was some kind of flavorless triangle, puffy egg, laying in a watery bed of steamed peppers and onions and spinach. It was not appetizing at all. The flight crew was extremely nice so that was a nice thing this flight attendant. They let us try different types of Swiss sodas, which was really nice and the dinner was actually delicious but still overall given the other considerations. It was pretty much a miserable flight without basic seat comfort.

At boarding, the locations where we had to have our passports checked prior to boarding were very unclear. Occasional staff wandered around telling people, but in busy area of the terminal this was not obvious. It was also located well after the check in desk in terms of walking to the gate. The Premium Economy service was attentive and warm. The only big draw back was lack of restrooms, and no division or even curtain between PE and Economy.

Everything was fairly easy just hard when you get to Heathrow not know your Gate number until an hour before but otherwise really everything great. Did not get my texts in time though to do me any good but that is why I still like everything the old fashioned way and print everything out.

Food used to be better and comfort was not attainable after 5 hours everything starts hurting.

horrible.. they cause such a problem and my daughter 14 years old was stranded in san francisco

I can’t even the whole trip was a catastrophe

Poor. Seats uncomfortable. No leg room. Hot and humid the whole trip. Food and staffs were ok.

The seats were so close together, when the man in front of me put his seat back, the screen in front of me was 9 inches from my face. There is no way to lean forward if I needed to pick something up. It was pretty uncomfortable for a ten hour flight. I was very surprised.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

Late flight Delays Poor service Poor staff Worst airline ever

I booked extra leg room, due to seat neighbor i now consider extra shoulder and arm room as well. Seems like the seats shrink in width now The crew was very friendly and professional ( 100%). Food was good not great, breakfast was bad, a dry slice of bread would have been better. Facilities clean.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

I liked everything BUT the temperature. It was freezing and now I am sick.

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

Flight was late arriving. So, we left 25 min late. Pilot made some time up during the flight. Therefore, we arrived alittle past original time.

Everything you need to know for your flight from Newark to Slovenia

Information on your arrival and departure airports