$246 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 9/12. 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

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Cheap Flights from Newark to Slovenia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Ljubljana
Ljubljana1 stop$564
Ljubljana
Ljubljana1 stop$564

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

Sun, Oct 26 - Wed, Nov 5
SWISS Logo
11:00 pm - 2:20 pmEWR-LJU
10h 20m1 stop
SWISS Logo
2:55 pm - 8:30 pmLJU-EWR
11h 35m1 stop
$564SWISS
Find Deal
Sun, Oct 12 - Wed, Nov 12
SWISS Logo
9:50 pm - 6:35 pmEWR-LJU
14h 45m1 stop
SWISS Logo
2:55 pm - 8:30 pmLJU-EWR
11h 35m1 stop
$565SWISS
Find Deal
Sun, Oct 19 - Tue, Nov 4
LOT Logo
8:10 pm - 4:20 pmEWR-LJU
38h 10m2 stops
LOT Logo
5:10 pm - 9:00 pmLJU-EWR
33h 50m1 stop
$567LOT
Find Deal
Sun, Oct 12 - Wed, Nov 12
SWISS Logo
9:50 pm - 6:35 pmEWR-LJU
14h 45m1 stop
SWISS Logo
6:30 am - 8:30 pmLJU-EWR
20h 00m1 stop
$569SWISS
Find Deal
Sun, Oct 12 - Wed, Nov 12
 Logo
11:34 am - 10:05 amEWR-LJU
16h 31m2 stops
 Logo
6:30 am - 8:30 pmLJU-EWR
20h 00m1 stop
Sun, Oct 26 - Wed, Nov 5
 Logo
10:25 am - 7:30 pmEWR-LJU
28h 05m2 stops
 Logo
6:30 am - 8:30 pmLJU-EWR
20h 00m1 stop
Wed, Nov 26 - Sat, Dec 6
LOT Logo
11:10 pm - 1:05 pmEWR-LJU
31h 55m1 stop
LOT Logo
5:10 pm - 8:25 pmLJU-EWR
33h 15m1 stop
$593LOT
Find Deal
Mon, Nov 10 - Tue, Nov 18
Lufthansa Logo
8:50 pm - 12:40 pmEWR-LJU
9h 50m1 stop
Lufthansa Logo
10:35 am - 7:05 pmLJU-EWR
14h 30m2 stops
$608Lufthansa
Find Deal
Sat, Oct 25 - Wed, Nov 5
Turkish Airlines Logo
1:25 am - 8:25 amEWR-LJU
26h 00m1 stop
Turkish Airlines Logo
7:35 pm - 10:30 pmLJU-EWR
32h 55m1 stop
$615Turkish Airlines
Find Deal
Sun, Nov 9 - Thu, Nov 20
Turkish Airlines Logo
12:25 am - 8:25 amEWR-LJU
26h 00m1 stop
Turkish Airlines Logo
7:35 pm - 10:30 pmLJU-EWR
32h 55m1 stop
$629Turkish Airlines
Find Deal
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.

What is the cheapest month to fly from Newark Airport to Slovenia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Newark Airport to Slovenia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Newark Airport to Slovenia is November, when tickets cost $661 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $1,279 and $1,145 respectively.

What’s the cheapest day of the week to fly from Newark Liberty Airport to Slovenia?

The average price of all round-trip flights from Newark Airport to Slovenia clicked on KAYAK for each day over the last 12 months.

For Newark Liberty Airport to Slovenia, Sunday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Slovenia back to Newark Liberty Airport, the best deals are generally found on Monday, with Sunday being the most expensive.

Good to know

Low seasonMarch
Cheapest flight$246
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 22% 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.

  • What is the cheapest time of day to fly to Slovenia?

    The cheapest time of day to fly to Slovenia is generally in the evening, when round-trip flights cost $990 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Slovenia is generally at night, which is peak travel time and where the average cost of a ticket is $1,166.

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.
7.6
SWISSOverall score based on 1710 reviews
7.1Food
8.3Crew
6.8Entertainment
7.7Boarding
7.4Comfort
Airline reviews

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

2.0 MediocreArianna, Aug 2025SEA - SFO
Read more SWISS reviews

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.

The food was good. Most the staff was pleasant. The flight would be drastically improved with WiFi on a long international flight.

All the flight to USA were arranged to E terminal whereas from Dubrovnik arriving on Zurich is on A80, have to walk all the way from A to E, even need transfer bus , for short transfer time like in an hour, we have to work fast, as soon as arrived at E, it is about time to boarding, pretty tight schedule, I hope Zurich airport can make some rearrangement so that transfer people do not have to walk long way. For short transfer time people, such as 50 min, this is even impossible if still like this.

Clean, efficient and quick response time when we missed our connecting flight.

When I needed to get my bag off of the plane so that I could take a train because the connection was 4 hours later, they took 2 hours to take my bag off making me take the train and miss my flight simultaneously. The seat size on the plane is too small for an average aged woman let alone a middle-aged man. It's unacceptable and I will not fly Boeing again.

Delayed 30 mins Forced to check in my carry on luggage

The cushion of the seats are old and very thin. The food can be more tasty or come with salt packages

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)

Stop charging for alcohol overseas flights and start taking cash again not everyone wants to pay with card if the person is bigger give him seat on the outside seats not the middle in between the people is common sense and mainly if you fly for Lufthansa provides the sam service and experience...

good entertainment package but rather small seats for business class

The male attendant has zero personality. It seemed like he was over worked or hated his job, not once did he smile or made any contact with the people on the plane. Strictly business and call it a day!

Booked Economy but it translated to economy light for Lufthansa so now we are stuck paying an extra $75 per person both ways for our checked bags. If I had known that, I would have never booked these tickets because it came out to be more than other options. The booking in the kayak side clearly says Economy and has a link to the inormation for Lufthansa which states Economy included a checked bag. Super annoyed about that.

The flight from Dulles to Munich was just okay. The seats were comfortable and extra foot room was noticeable in comfort plus. Disappointed in the booking in so much I requested an aisle seat and then was assigned a middle seat. The food was inedible. Movie choices were moderate. I usually fly Delta, but this WA flight was cheaper. Next time, I'll happily pay the extra to fly Delta.

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.

Food is too little (in volume) and too spicy.. There are no snacks in the back of the plane in between meals.

The seat I was stuck in was so unimaginably uncomfortable. I have never had that tight of a seat in my 20 years of flying. Even budget airlines give you more space.

We were upgraded to economy plus and everything was awesome!

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

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