Find Cheap 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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Book cheap flights from Philadelphia to Bulgaria

(Round-trip)
Depart: Mon Nov 20 2017 Return: Thu Nov 30 2017 Trip spans 11 days
Qatar Airways
Qatar Airways
PHL
4:45a
SOF
6:45a
26h 00m
1 stop
SOF
6:55a
PHL
9:45a
26h 50m
1 stop
Depart: Fri Nov 17 2017 Return: Fri Dec 1 2017 Trip spans 15 days
Air Canada
Air Canada
PHL
5:45a
SOF
6:05a
24h 20m
2 stops
SOF
1:15a
PHL
7:35p
18h 20m
2 stops
Depart: Tue Aug 22 2017 Return: Thu Aug 31 2017 Trip spans 10 days
Lufthansa
Lufthansa
PHL
1:45p
SOF
2:20a
12h 35m
1 stop
SOF
2:30a
PHL
7:00p
16h 30m
1 stop
Depart: Thu Aug 31 2017 Return: Wed Sep 13 2017 Trip spans 14 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 Sep 8 2017 Return: Fri Sep 15 2017 Trip spans 8 days
KLM
KLM
PHL
10:50a
SOF
2:55a
16h 05m
2 stops
SOF
6:25p
PHL
10:55p
28h 30m
2 stops
Depart: Fri Jul 7 2017 Return: Sat Jul 22 2017 Trip spans 16 days
British Airways
British Airways
PHL
4:40p
SOF
2:25a
33h 45m
1 stop
SOF
10:05a
PHL
4:20p
30h 15m
2 stops
Depart: Sun Jun 18 2017 Return: Sat Jul 22 2017 Trip spans 35 days
$1142
Select
United
United
PHL
2:15a
SOF
11:35a
33h 20m
2 stops
SOF
2:05a
PHL
2:19a
24h 14m
2 stops
Depart: Tue Nov 21 2017 Return: Thu Nov 30 2017 Trip spans 10 days
Qatar Airways
Qatar Airways
PHL
4:45a
SOF
6:45a
26h 00m
1 stop
SOF
6:55a
PHL
9:45a
26h 50m
1 stop
Depart: Sun Nov 19 2017 Return: Fri Dec 1 2017 Trip spans 13 days
Air Canada
Air Canada
PHL
5:30a
SOF
6:05a
24h 35m
2 stops
SOF
1:15a
PHL
7:35p
18h 20m
2 stops
Depart: Thu Nov 16 2017 Return: Thu Nov 30 2017 Trip spans 15 days
Qatar Airways
Qatar Airways
PHL
4:45a
SOF
6:45a
26h 00m
1 stop
SOF
6:55a
PHL
9:45a
26h 50m
1 stop
Depart: Wed Nov 22 2017 Return: Fri Dec 1 2017 Trip spans 10 days
Air Canada
Air Canada
PHL
11:50a
SOF
6:05a
18h 15m
2 stops
SOF
1:15a
PHL
7:35p
18h 20m
2 stops
Depart: Sat Nov 18 2017 Return: Thu Nov 30 2017 Trip spans 13 days
Qatar Airways
Qatar Airways
PHL
4:45a
SOF
6:45a
26h 00m
1 stop
SOF
6:55a
PHL
9:45a
26h 50m
1 stop
Depart: Wed Jul 12 2017 Return: Tue Jul 18 2017 Trip spans 7 days
Major Airline
Major Airline
PHL
2:15a
SOF
10:10p
19h 55m
2 stops
SOF
10:30p
PHL
6:40p
20h 10m
2 stops
Depart: Fri Aug 4 2017 Return: Sat Aug 12 2017 Trip spans 9 days
$1019
Select
Lufthansa
Lufthansa
PHL
1:45p
SOF
11:05a
21h 20m
1 stop
SOF
2:30a
PHL
7:00p
16h 30m
1 stop
Depart: Fri Jun 23 2017 Return: Thu Jun 29 2017 Trip spans 7 days
$1082
Select
Major Airline
Major Airline
PHL
2:30a
SOF
10:10p
19h 40m
2 stops
SOF
10:30p
PHL
8:18p
21h 48m
2 stops
Depart: Sat Jun 17 2017 Return: Fri Jul 7 2017 Trip spans 21 days
Qatar Airways
Qatar Airways
PHL
6:40a
SOF
8:15a
25h 35m
1 stop
SOF
4:15p
PHL
11:40a
19h 25m
1 stop
Depart: Wed Jun 28 2017 Return: Tue Jul 4 2017 Trip spans 7 days
$1156
Select
Lufthansa
Lufthansa
PHL
1:45p
SOF
2:10a
12h 25m
1 stop
SOF
2:30a
PHL
7:00p
16h 30m
1 stop
Depart: Tue Jun 27 2017 Return: Tue Jul 4 2017 Trip spans 8 days
Qatar Airways
Qatar Airways
PHL
6:40a
SOF
8:15a
25h 35m
1 stop
SOF
4:15p
PHL
11:40a
19h 25m
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.

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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.

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Airports
Origin

Philadelphia
$691
Destination

Sofia
$691