$525 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 11/25. 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 Philadelphia to Serbia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Belgrade
Belgrade2 stops$525
Belgrade
Belgrade2 stops$525

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

Tue, Nov 25 - Thu, Dec 4
Air France Logo
12:37 pm - 12:20 pmPHL-BEG
17h 43m2 stops
Air France Logo
6:30 am - 4:56 pmBEG-PHL
16h 26m2 stops
$525Air France
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Sun, Nov 23 - Mon, Dec 8
Delta Logo
6:02 am - 11:55 amPHL-BEG
23h 53m2 stops
Delta Logo
12:35 pm - 4:56 pmBEG-PHL
34h 21m2 stops
$526Delta
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Tue, Nov 25 - Thu, Dec 4
Lufthansa Logo
5:40 pm - 1:05 pmPHL-BEG
13h 25m1 stop
Lufthansa Logo
6:25 am - 4:05 pmBEG-PHL
15h 40m1 stop
$533Lufthansa
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Mon, Oct 27 - Tue, Nov 25
Multiple Airlines Logo
4:35 pm - 5:05 pmPHL-BEG
19h 30m2 stops
Multiple Airlines Logo
6:10 am - 10:56 pmBEG-PHL
22h 46m3 stops
$543Multiple Airlines
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Tue, Nov 25 - Fri, Dec 5
Multiple Airlines Logo
5:40 pm - 12:55 pmPHL-BEG
13h 15m1 stop
Multiple Airlines Logo
6:15 am - 2:47 pmBEG-PHL
14h 32m2 stops
$547Multiple Airlines
Find Deal
Mon, Oct 27 - Mon, Nov 24
Austrian Airlines Logo
9:20 am - 11:30 pmPHL-BEG
33h 10m2 stops
Austrian Airlines Logo
11:10 am - 10:56 pmBEG-PHL
41h 46m2 stops
$550Austrian Airlines
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Tue, Oct 28 - Wed, Nov 26
Lufthansa Logo
6:40 pm - 1:05 pmPHL-BEG
13h 25m1 stop
Lufthansa Logo
1:50 pm - 4:05 pmBEG-PHL
32h 15m1 stop
$553Lufthansa
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Thu, Nov 27 - Tue, Dec 2
United Airlines Logo
5:40 pm - 12:50 pmPHL-BEG
13h 10m1 stop
United Airlines Logo
6:10 am - 4:00 pmBEG-PHL
15h 50m1 stop
$583United Airlines
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Thu, Oct 30 - Mon, Nov 3
Austrian Airlines Logo
9:20 am - 10:30 amPHL-BEG
20h 10m2 stops
Austrian Airlines Logo
11:10 am - 10:56 pmBEG-PHL
41h 46m2 stops
$599Austrian Airlines
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Thu, Nov 27 - Wed, Dec 3
United Airlines Logo
5:40 pm - 12:50 pmPHL-BEG
13h 10m1 stop
United Airlines Logo
1:50 pm - 4:00 pmBEG-PHL
32h 10m1 stop
$603United Airlines
Find Deal
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 April, when tickets cost $731 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,131 and $1,011 respectively.

Good to know

Low seasonFebruary
Cheapest flight$525
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 13% lower on average.
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 airlines flying 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.
7.4
United AirlinesOverall score based on 8928 reviews
7.3Comfort
7.7Boarding
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

Check in was quick and easy during early hours. Flight was on time, and customer services was a plus.

8.0 ExcellentAnonymous, Sep 2025ORD - LAX
Read more United Airlines reviews

Check in was quick and easy during early hours. Flight was on time, and customer services was a plus.

Terrible. They wouldn't allow me on my flight on the 14th..

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Tastless food and too obvious lack of enthusiasm for service in the economy vesus business class

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

We were moved twice on flights to the point we weren’t even on Lufthansa anymore. We had to fly united. Lost paid extra leg room twice. To top it all off we’re forced to pay $375 and $275, respectively for you luggage that was considered sports luggage. We were told it would be Lufthansa fares l, from the united desk, AND WE DIDN'T EVEN HAVE A LUFTHANSA FLIGHT! I’ll be calling once my trip is over on October 7th to all airlines and Kayak. This was ridiculous!

Everything went smoothly and the staff was very kind. I’m glad I purchased the extra leg room for my long flight; it was totally worth it. We were served 2 meals for a 9 hour flight which I was not expecting and they were very tasty. I appreciated them being vegetarian. Customs line in Munich was long; I had a choice to have a 1 hr 40 min layover or 2 hr 40 min layover; I took the longer layover which I was thankful for because my flight was delayed 30 minutes and there’s a good chance I would have missed my connecting flight. This was my very first international flight and I would fly Discover again without hesitation. Thank you for taking good care of me!

I liked everything BUT the temperature. It was freezing and now I am sick.

I liked Quiet people around me. Crew could have helped people with overhead luggage so they aren't moving other peoples bags around and causing problems for people that had there bags there first

The flight and crew were good. The customer experience on the ground could have been better. We had to reschedule our flight because of a delay on the previous flight. The attendants working the desk in Washington DC were not helpful. They told us to scan a QR code and that would get us rebooked. Why couldn't two people standing at their computers do this? We had to chat with someone to get everything figured out. It was extremely confusing.

The plane was delayed by two hours in Chicago which led to us missing the next flight. Lufthansa rebooked the flight and booked us a hotel for the night in Frankfurt. The level of customer service and getting us taken care of was superb. The flight crew and the service on the ground was superb.

It was a short flight, everything was good with it.

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

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

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