Find Deals on Flights from Philadelphia to Bulgaria

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Philadelphia to Bulgaria

(Round-trip)
Depart: Wed Mar 8 2017 Return: Wed Mar 15 2017 Trip spans 7 days
Major Airline
Major Airline
PHL
7:50a
SOF
1:10a
17h 20m
2 stops
SOF
4:50a
PHL
9:07p
16h 17m
2 stops
Depart: Thu Apr 6 2017 Return: Mon Apr 17 2017 Trip spans 12 days
Qatar Airways
Qatar Airways
PHL
6:40a
SOF
8:30a
25h 50m
1 stop
SOF
9:25a
PHL
11:40a
26h 15m
1 stop
Depart: Fri May 5 2017 Return: Tue May 30 2017 Trip spans 26 days
Major Airline
Major Airline
PHL
7:50a
SOF
3:25a
19h 35m
2 stops
SOF
10:30p
PHL
2:40p
16h 10m
2 stops
Depart: Sat Apr 8 2017 Return: Mon Apr 17 2017 Trip spans 10 days
Qatar Airways
Qatar Airways
PHL
6:40a
SOF
8:30a
25h 50m
1 stop
SOF
9:25a
PHL
11:40a
26h 15m
1 stop
Depart: Wed May 31 2017 Return: Tue Jun 6 2017 Trip spans 7 days
Major Airline
Major Airline
PHL
9:45a
SOF
3:25a
17h 40m
2 stops
SOF
10:05p
PHL
3:00p
16h 55m
2 stops
Depart: Fri Apr 7 2017 Return: Mon Apr 17 2017 Trip spans 11 days
Qatar Airways
Qatar Airways
PHL
11:40a
SOF
8:30a
44h 50m
2 stops
SOF
9:25a
PHL
11:40a
26h 15m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Philadelphia
$641
Destination

Sofia
$641