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Cheap flights from Philadelphia (PHL) to Sofia (SOF)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Philadelphia (PHL) to Sofia (SOF)

How to find the cheapest flight from Philadelphia (PHL) to Sofia (SOF)
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How to find the cheapest flight from Philadelphia (PHL) to Sofia (SOF)
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How to find the cheapest flight from Philadelphia (PHL) to Sofia (SOF)
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Cheap flights from Philadelphia to Sofia in April , May 2026

24 Apr - 01 May $ 1,058.00
PHL
Philadelphia
United Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
United Airlines
1 STOPS
PHL
Philadelphia
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23 Apr - 01 May $ 1,058.00
PHL
Philadelphia
United Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
United Airlines
1 STOPS
PHL
Philadelphia
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28 Apr - 07 May $ 1,111.00
PHL
Philadelphia
United Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
United Airlines
1 STOPS
PHL
Philadelphia
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Last minute flights from Philadelphia to Sofia

22 Apr - 30 Apr $ 730.00
PHL
Philadelphia
United Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
United Airlines
2 STOPS
PHL
Philadelphia
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14 Apr - 30 Apr $ 904.00
PHL
Philadelphia
United Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
United Airlines
1 STOPS
PHL
Philadelphia
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14 Apr - 30 Apr $ 1,094.00
PHL
Philadelphia
Austrian Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Austrian Airlines
2 STOPS
PHL
Philadelphia
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One-way flights to Sofia from Philadelphia

7:45 PM - 3:45 PM
United Airlines
2 Stops
15h 55m
PHL - SOF
$ 648
Kiwi
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5:40 PM - 9:55 AM
United Airlines
1 Stops
12h 25m
PHL - SOF
$ 660
Kiwi
Pick dates
5:40 PM - 9:55 AM
United Airlines
1 Stops
12h 25m
PHL - SOF
$ 660
Kiwi
Pick dates

How to find the cheapest flight from Philadelphia (PHL) to Sofia (SOF)

Related info for your journey
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How to find the cheapest flight from Philadelphia (PHL) to Sofia (SOF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Philadelphia (PHL) to Sofia (SOF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.