$560 Find Cheap Flights from Philadelphia to Serbia

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 Serbia departing on 4/2. 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 Serbia 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 Serbia 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 Serbia

Thu, Apr 2 - Mon, Apr 13
Multiple Airlines Logo
5:35 pm - 3:45 pm
PHL
-
BEG
16h 10m1 stop
Multiple Airlines Logo
8:00 pm - 5:33 pm
BEG
-
PHL
51h 33m2 stops
$560Multiple Airlines
Thu, Apr 2 - Mon, Apr 13
Multiple Airlines Logo
9:15 am - 4:25 pm
PHL
-
BEG
25h 10m2 stops
Multiple Airlines Logo
8:00 pm - 5:33 pm
BEG
-
PHL
51h 33m2 stops
$571Multiple Airlines
Wed, Mar 4 - Sun, Mar 8
United Airlines Logo
10:35 am - 11:50 pm
PHL
-
BEG
31h 15m2 stops
United Airlines Logo
6:15 am - 4:05 pm
BEG
-
PHL
15h 50m1 stop
$575United Airlines
Wed, Mar 4 - Sun, Mar 8
United Airlines Logo
12:55 pm - 11:50 pm
PHL
-
BEG
28h 55m2 stops
United Airlines Logo
6:15 am - 11:16 pm
BEG
-
PHL
23h 01m2 stops
$585United Airlines
Thu, Apr 2 - Mon, Apr 13
Lufthansa Logo
5:35 pm - 3:45 pm
PHL
-
BEG
16h 10m1 stop
Lufthansa Logo
4:55 pm - 4:00 pm
BEG
-
PHL
29h 05m1 stop
$588Lufthansa
Fri, Mar 20 - Sat, Apr 4
Multiple Airlines Logo
4:35 pm - 4:55 pm
PHL
-
BEG
19h 20m2 stops
Multiple Airlines Logo
1:05 pm - 2:46 pm
BEG
-
PHL
31h 41m2 stops
$599Multiple Airlines
Thu, Mar 5 - Sun, Mar 8
Multiple Airlines Logo
4:35 pm - 1:45 pm
PHL
-
BEG
15h 10m2 stops
Multiple Airlines Logo
8:05 pm - 10:46 pm
BEG
-
PHL
31h 41m2 stops
$612Multiple Airlines
Thu, Mar 5 - Sun, Mar 8
Multiple Airlines Logo
7:50 am - 12:45 pm
PHL
-
BEG
22h 55m2 stops
Multiple Airlines Logo
6:15 am - 4:05 pm
BEG
-
PHL
15h 50m1 stop
$616Multiple Airlines
Fri, Mar 20 - Sat, Apr 4
Multiple Airlines Logo
4:35 pm - 10:30 am
PHL
-
BEG
36h 55m3 stops
Multiple Airlines Logo
6:15 am - 2:46 pm
BEG
-
PHL
38h 31m2 stops
$631Multiple Airlines
Fri, Mar 20 - Sat, Apr 4
Lufthansa Logo
4:35 pm - 4:55 pm
PHL
-
BEG
19h 20m2 stops
Lufthansa Logo
4:50 pm - 4:00 pm
BEG
-
PHL
29h 10m1 stop
$722Lufthansa
Booking Insights

KAYAK's insights & trends for Philadelphia to Serbia flights

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

What is the cheapest month to fly from Philadelphia to Serbia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Serbia, 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 Philadelphia to Serbia is October, when tickets cost $571 (return) on average. On the other hand, the most expensive months are June and February, when the average cost of round-trip tickets is $1,011 and $907 respectively.

Good to know

Low seasonFebruary
Cheapest flight$560
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly with an average 28% increase in price.
Flight from Philadelphia to Belgrade

FAQs - booking Serbia flights

  • How does KAYAK find such low prices on flights from Philadelphia to Serbia?

    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 Serbia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Philadelphia to Serbia 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 Serbia?

    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 Serbia 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 Serbia?

    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 Serbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Philadelphia to Serbia

 
Need help choosing which airline to fly with from Philadelphia to Serbia? 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.
7.9
DeltaOverall score based on 8012 reviews
8.5Crew
7.9Comfort
7.9Entertainment
7.3Food
8.1Boarding
Airline reviews

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

2.0 MediocreBarbara, Dec 2025
PHL - MSP
Read more Delta reviews

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Did not realize internet screen was hidden between seats and no info printed!!!!

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Very good flight crew and very nice people staff were incredible especially the gate agent

Waited at the usual crowded gate at DCA where one ends up standing up because there aren't enough seats.

The flight was delayed for about 2 hrs. Other than it, it was good.

Advertised fruit trays with cheese, but only snacks handed out!

The plant way delayed departing by 3 hours. It was an old airplane with broken seats and armrests. The bathroom made a hollering sound. A really crappy flight experience and travel day all around.

Flight delays both to Detroits and return flight . The flight to Detroit was associated with mechanical difficulty

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

I boarded flight UA#1318 at Sacramento International Airport going back to Houston TX. The flight was scheduled at 5:10am. I was able to check in virtually using the United Airlines app. When I entered the airport, there was no one outside assisting with checked bags as it was for Delta Airlines. Immediately upon entering, there was a LONG, EXTREMELY LONG line to the kiosks to get boarding passes. I stand in line to get boarding passes then had to move to ANOTHER EXTREMELY LONG line to get my bags checked in. While standing in this line, we noticed an agent taking customers to 3 at a time to her station to check their bags in. Lucky for me, she called me back, checked my bags for me and I was on my way. I then encountered another long line at the TSA check and to avoid I ending up having to sign up for CLEAR to bypass it. So glad, I did.,...Both of my flights were great with no issues, butthe check in progress at Bush Airport was so much smoother. Check-in at SMF airport needs to be anaylzed and corrected. Do better United, I know you can....thanks

cabin crew was OK, food was OK, the trip from the US to Munich was actually pretty bad comfort wise. Noisy aircraft, lights never dimmed even in Business class (night flight) barely sufficient amenities for the price. I have millions of miles with United but TBH American is gaining ground and Delta has always been marginally better then United although on paper United has more longes and cheaper upgrades.

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Sat next to a one year old. She crawled all over the place and made me laugh.

Not United Airlines' fault. It's ORL airport's fault.

Great flight. On time boarding. Smooth flight and on time arrival at EWR. The flight crew was marvelous and there was a great selection of movies on the entertainment system. Our bags were at the carousel before we got there. Another excellent flight from United.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

They did the one thing that really matters - got to Chicago early.

I liked the snacks and the flight attendants were friendly.

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

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.

Boarding procedure should have the crew and personnel who are more trained, in a sense of precisely knowing what can be done and what cannot. They do not have the exact information on what you should do in the first place, also the boarding itself was slightly delayed due to the aircraft "not being ready".

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

..it was short.. I didn't like that my red bag went out completely stained with black stains..That's probably some airport staff bad handling but still

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

Information on your arrival and departure airports