$305 Find Cheap Flights from Philadelphia to Slovenia

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Slovenia departing on 4/26. 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

Sun, Apr 26 - Tue, May 12
Delta Logo
8:05 pm - 1:50 pm
PHL
-
LJU
35h 45m
2 stops
Delta Logo
6:00 am - 5:47 pm
LJU
-
PHL
17h 47m
2 stops
$539Delta
Sun, Apr 26 - Tue, May 12
Lufthansa Logo
5:40 pm - 7:25 pm
PHL
-
LJU
19h 45m
2 stops
Lufthansa Logo
6:55 am - 4:05 pm
LJU
-
PHL
15h 10m
1 stop
$889Lufthansa
Sat, Aug 1 - Sat, Aug 15
Multiple Airlines Logo
5:20 pm - 7:05 pm
PHL
-
LJU
19h 45m
2 stops
Multiple Airlines Logo
2:35 pm - 4:17 pm
LJU
-
PHL
31h 42m
2 stops
$973Multiple Airlines
Tue, Sep 1 - Thu, Sep 10
Multiple Airlines Logo
5:40 pm - 1:15 pm
PHL
-
LJU
13h 35m
1 stop
Multiple Airlines Logo
6:25 am - 4:05 pm
LJU
-
PHL
15h 40m
2 stops
$990Multiple Airlines
Wed, Sep 2 - Thu, Sep 10
British Airways Logo
6:45 pm - 5:40 pm
PHL
-
LJU
16h 55m
1 stop
British Airways Logo
6:25 pm - 4:40 pm
LJU
-
PHL
28h 15m
1 stop
$992British Airways
Mon, Aug 31 - Thu, Sep 10
British Airways Logo
6:45 pm - 4:20 pm
PHL
-
LJU
15h 35m
1 stop
British Airways Logo
6:25 pm - 4:40 pm
LJU
-
PHL
28h 15m
1 stop
$997British Airways
Tue, Sep 1 - Wed, Sep 9
Multiple Airlines Logo
5:40 pm - 1:15 pm
PHL
-
LJU
13h 35m
1 stop
Multiple Airlines Logo
6:25 am - 5:42 pm
LJU
-
PHL
17h 17m
2 stops
$998Multiple Airlines
Wed, Sep 2 - Wed, Sep 9
SWISS Logo
11:30 am - 11:05 pm
PHL
-
LJU
29h 35m
2 stops
SWISS Logo
6:25 am - 5:42 pm
LJU
-
PHL
17h 17m
2 stops
$1,000SWISS
Wed, Sep 2 - Fri, Sep 11
Multiple Airlines Logo
1:20 pm - 1:50 pm
PHL
-
LJU
18h 30m
2 stops
Multiple Airlines Logo
6:00 am - 5:14 pm
LJU
-
PHL
17h 14m
2 stops
$1,007Multiple Airlines
Tue, Sep 1 - Fri, Sep 11
Multiple Airlines Logo
1:20 pm - 1:25 pm
PHL
-
LJU
18h 05m
2 stops
Multiple Airlines Logo
6:00 am - 5:14 pm
LJU
-
PHL
17h 14m
2 stops
$1,012Multiple Airlines
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 ($539) and Lufthansa ($889).

Good to know

Cheapest flight$539
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 7835 reviews
6.3Food
6.5Entertainment
7.0Boarding
7.6Crew
6.8Comfort
Airline reviews

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

2.0 MediocreD, Mar 2026
CAE - ORD
Read more Lufthansa reviews

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.

Economy Priority seats are extremely uncomfortable. There is no way to escape the boxed in feeling, particularely because the distance between to rows are too short, the hard edge of the front row is keeping legs confined. There is no elevated place to put your feet. I am of average, European size.

Terrible. Both flights were significantly delayed, no luggage, made me check my small bag when many, many others had much larger carry-ons, not even a bottle of water . . . I will not fly Discover Airlines again.

I was deceived on the Kayak site expecting a ticket, but instead finding a "standby" reservation. When I tried to change the ticket, I paid almost twice the price of the original ticket. Then, the airline refused to give me the reserved seat I had chosen and paid for. I think I deserve a refund for this leg of my trip because I was doubly charged and did not receive what I had paid for. I put in a complaint with Lufthansa because the ticket was sold originally sold as a flight they listed. Someone here needs to take responsibility.

Excellent service; they helped me reschedule so I can fly in an earlier flight

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

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

Information on your arrival and departure airports