$277 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 8/20. 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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Best Slovenia Flight Deals from Newark

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Ljubljana
Ljubljana1 stop$396
Ljubljana
Ljubljana1 stop$396

Cheap Flights from Newark to Slovenia

 
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
11:05 pm - 2:20 pmEWR-LJU
10h 15m1 stop
SWISS Logo
6:30 am - 8:30 pmLJU-EWR
20h 00m1 stop
$396SWISS
Find Deal
Sun, Oct 26 - Wed, Nov 5
 Logo
9:50 pm - 7:25 pmEWR-LJU
16h 35m1 stop
 Logo
6:30 am - 8:30 pmLJU-EWR
20h 00m1 stop
Sun, Oct 26 - Wed, Nov 5
Lufthansa Logo
9:50 pm - 7:25 pmEWR-LJU
16h 35m1 stop
Lufthansa Logo
6:35 am - 7:05 pmLJU-EWR
18h 30m2 stops
$434Lufthansa
Find Deal
Tue, Oct 7 - Tue, Oct 14
Lufthansa Logo
8:30 pm - 7:25 pmEWR-LJU
16h 55m1 stop
Lufthansa Logo
8:00 pm - 12:25 pmLJU-EWR
22h 25m1 stop
$456Lufthansa
Find Deal
Wed, Sep 17 - Wed, Oct 1
British Airways Logo
2:27 pm - 5:50 pmEWR-LJU
21h 23m2 stops
British Airways Logo
6:00 pm - 10:21 pmLJU-EWR
34h 21m2 stops
$486British Airways
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Thu, Oct 16 - Fri, Oct 24
LOT Logo
10:50 pm - 12:35 pmEWR-LJU
31h 45m1 stop
LOT Logo
5:05 pm - 5:45 pmLJU-EWR
30h 40m2 stops
$534LOT
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Sat, Aug 2 - Wed, Aug 13
Delta Logo
7:55 pm - 12:00 pmEWR-LJU
34h 05m2 stops
Delta Logo
12:20 pm - 11:30 pmLJU-EWR
17h 10m2 stops
$562Delta
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Tue, Sep 9 - Tue, Sep 23
Delta Logo
5:00 pm - 11:35 amEWR-LJU
12h 35m1 stop
Delta Logo
12:35 pm - 12:56 amLJU-EWR
18h 21m2 stops
$585Delta
Find Deal
Sat, Sep 13 - Fri, Sep 19
LOT Logo
7:45 pm - 4:20 pmEWR-LJU
14h 35m1 stop
LOT Logo
1:25 pm - 5:45 pmLJU-EWR
34h 20m2 stops
$594LOT
Find Deal
Thu, Sep 18 - Sun, Sep 28
British Airways Logo
9:25 pm - 8:20 pmEWR-LJU
16h 55m1 stop
British Airways Logo
9:25 pm - 10:30 pmLJU-EWR
31h 05m2 stops
$602British Airways
Find Deal
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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 March, when tickets cost $667 (return) on average. On the other hand, the most expensive months are June and April, when the average cost of round-trip tickets is $1,279 and $1,153 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 seasonJanuary
High seasonAugust
Cheapest flight$277
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 20% 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.
7.5
SWISSOverall score based on 1654 reviews
7.1Food
8.2Crew
6.8Entertainment
7.6Boarding
7.4Comfort
Airline reviews

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.

6.0 GoodBeth, Jun 2025SEA - ZRH
Read more SWISS reviews

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.

Each flight we took was late with little or no updates or information.

Swiss airline do not allow online check-in before 24 hrs, this is very inconvenient to us. I tried many ways such as booking code(6 numbers) or 13 booking numbers , neither of them work, Lufthansa is better which allow us to check in even before 30 hrs, so we can assign our seats( not many people want spend extra money to assign seats on top of airfare which is already spent.)

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.

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

The biggest let down was with booking experience through Kayak. I booked a flight with checked bags on Kayak. Right away I got a message from travel agency that the flight is not confirmed and to call them. I called them and they said the flight I have booked is no longer available with the price I have booked it for and I can book it with about $100 more. I already had other options I could book with cheaper price so I asked them to cancel my booking. Then they said I can have the ticket with the same price but a date change which was not working for me as I had to be there for a seminar. So again I said no then they said they will cover the charges and confirm my flight. When comes time for check-in I see I have no checked bag option which means the travel agency deceived me saying I can have my booking as I had booked it. And at that point I ended up paying $155 for my checked bag going back and forth. I am extremely angry and unhappy with this experience

PLEASE DONT TAKE FORCEFULLY(SIZE APPROPRIATE) CARRY ONS FROM PASSENGERS WHO FOR SOME REASON NEED TO KEEP IT

It was great. My seat was comfortable. The bathrooms were clean . The service was superb . I travel a lot and I have been in 64 counties. I wish I could fly first class, even though I could , but I prefer to budget my yearly travelling expense on actual visiting , not on flight. Anyway, my point is that your economy was far much better than other airlines as good as Air France. The flight attendants and all crew were polite and very helpful and respectful. Thank you for making my long trip tolerable.

I slept the whole flight so I can't tell you about the food and there was no entertainment offered. Crew was very nice, seats were comfortable in business, and boarding was easy.

Flight was great only departure was delayed to saome ground crew issues

It was freezing. I asked crew member for a blanket and was told it might be in front of plane but I never got one. I turned off all the vents but still froze.

Cheapest airlines I have ever been on. I got downgraded and never got on united. I got rerouted through Vancouver onto jetwesf

Flight was 1.5 hours late to depart so changed flights to Swiss Air.

The United Airlines crew that operated this flight was subpar. They didn’t

Very small and uncomfortable seats, Hard to hear entertainment system sound. Horrible food. Staff doesn't care much about the passengers. 2nd time they didn't give me my vegetarian meal. They asked me regular food with meat. The airline and staff was from United airlines.

Checkin took along timen only.few angents available at.checkin desk. Customer support over phone no existence

At baggage claim, I was given the wrong printed ticket. The ticket belonged to another passenger for a different flight — to Zurich instead of Frankfurt (layover). I was even allowed to pass security, and when I asked the Lufthansa employee if I was on the correct flight, and why it was changed. The employee said everything was correct and I should board. When I got on the plane, there was someone in my seat, and the crew on the plane finally realized that I was on the wrong plane. When I got off the plane, nobody was willing to help, and the security refused to provide my original printed ticket. That was until I showed them that I took a photo of the ticket; once they realized I had photographic evidence, they were suddenly ready to help me. The Lufthansa employee began communicating with other airlines and found a flight that would take me to my destination via Polish Airlines. I was required to once again go through security, re-check my bag, and once again pay for my checked bag and weight overage fees. This experience was incredibly stressful and very frustrating, as you can imagine. A Lufthansa employee told me I would be eligible for a refund. Please tell me what steps I need to take in order to make that happen. Thank you!

They lost my luggage and despite all follow ups through emails and phone calls they don’t give me an update

Service was courteous and attentive. Sat in the exit row. In exchange for leg room I had people tripping over my feet to use it at a hallway from one aisle to the other, had no access to films viaa viewscreen and no underseat storage for medicines or other personal travel needs. Next time I am seated there, I will refuse the exit row.

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