$562 Find Cheap Flights from Philadelphia 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 Philadelphia to Slovenia departing on 10/15. 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 Philadelphia 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 Philadelphia 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 Philadelphia to Slovenia

Wed, Sep 2 - Thu, Sep 10
Multiple Airlines Logo
4:05 pm - 1:25 pm
PHL
-
LJU
15h 20m
2 stops
Multiple Airlines Logo
6:00 am - 6:27 pm
LJU
-
PHL
18h 27m
2 stops
$955Multiple Airlines
Tue, May 26 - Tue, Jun 2
Delta Logo
12:38 pm - 1:50 pm
PHL
-
LJU
19h 12m
2 stops
Delta Logo
6:00 am - 11:07 pm
LJU
-
PHL
23h 07m
2 stops
$995Delta
Wed, Sep 16 - Tue, Sep 29
Delta Logo
9:40 am - 1:50 pm
PHL
-
LJU
22h 10m
2 stops
Delta Logo
2:35 pm - 5:14 pm
LJU
-
PHL
32h 39m
2 stops
$1,008Delta
Wed, Sep 16 - Thu, Oct 1
Delta Logo
4:05 pm - 1:50 pm
PHL
-
LJU
15h 45m
2 stops
Delta Logo
2:35 pm - 5:14 pm
LJU
-
PHL
32h 39m
2 stops
$1,015Delta
Wed, Sep 16 - Mon, Sep 28
Delta Logo
2:12 pm - 1:50 pm
PHL
-
LJU
17h 38m
2 stops
Delta Logo
6:00 am - 6:27 pm
LJU
-
PHL
18h 27m
2 stops
$1,055Delta
Thu, Sep 17 - Wed, Sep 30
Delta Logo
5:12 pm - 10:55 pm
PHL
-
LJU
23h 43m
2 stops
Delta Logo
6:00 am - 10:37 pm
LJU
-
PHL
22h 37m
2 stops
$1,060Delta
Thu, Sep 10 - Sat, Sep 19
Multiple Airlines Logo
3:25 pm - 7:20 pm
PHL
-
LJU
21h 55m
2 stops
Multiple Airlines Logo
9:40 am - 5:40 am
LJU
-
PHL
26h 00m
2 stops
$1,061Multiple Airlines
Wed, Sep 16 - Sat, Sep 26
Delta Logo
9:40 am - 1:50 pm
PHL
-
LJU
22h 10m
2 stops
Delta Logo
6:00 am - 9:20 am
LJU
-
PHL
33h 20m
2 stops
$1,062Delta
Mon, Jul 20 - Mon, Jul 27
Delta Logo
12:02 pm - 11:20 am
PHL
-
LJU
17h 18m
2 stops
Delta Logo
6:00 am - 11:16 pm
LJU
-
PHL
23h 16m
2 stops
$1,065Delta
Sun, Jul 19 - Mon, Jul 27
Delta Logo
3:38 pm - 11:20 am
PHL
-
LJU
37h 42m
2 stops
Delta Logo
6:00 am - 11:16 pm
LJU
-
PHL
23h 16m
2 stops
$1,066Delta
Booking Insights

KAYAK's insights & trends for Philadelphia to Slovenia flights

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

Which airlines provide the cheapest flights from Philadelphia 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 Philadelphia to Slovenia were found on Delta ($1,055) and Lufthansa ($1,195).

Find deals

Good to know

Cheapest flight$562
Flight from Philadelphia to Ljubljana

FAQs - booking Slovenia flights

  • How does KAYAK find such low prices on flights from Philadelphia 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 Philadelphia to Slovenia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Philadelphia 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 Philadelphia 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 Philadelphia 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 Philadelphia 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 Philadelphia 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 airline flying from Philadelphia to Slovenia

 
Need help choosing which airline to fly with from Philadelphia 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.
6.8
LufthansaOverall score based on 7960 reviews
7.6Crew
6.3Food
6.4Entertainment
7.0Boarding
6.8Comfort
Airline reviews

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

6.0 GoodDevasena, Apr 2026
ORD - FWA
Read more Lufthansa reviews

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

I upgraded to the business class cabin. It was the poorest business class I have ever experienced. No access to any business lounge in Tampa airport. Seats are not comfortable. I had a window seat and had to step/crawl over the next seat. Food was mediocre and service below average for business class. Bathroom location was ridiculous. No place to wait. I cannot believe I paid this kind of money and will never fly Lufthansa Discover again. They really should reimburse me somehow.

Boarding was disorganized. The door to one to the toilets wouldn’t lock. The plane was shockingly cramped, and clearly used for domestic flights due to the menus for items to sell domestic travelers. United should be ashamed of its small seats, tiny unclean toilets, and money grubbing stance toward services, compared to Lufthansa, Emirates, and most international carriers United is awful.

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

Very good, i got two seats for myself, and was comfortable with the blanket i got

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

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

Information on your arrival and departure airports

Philadelphia (PHL)