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Cheap flights from St Louis (STL) to Sofia (SOF)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from St Louis (STL) to Sofia (SOF)

How to find the cheapest flight from St Louis (STL) to Sofia (SOF)
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How to find the cheapest flight from St Louis (STL) to Sofia (SOF)
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How to find the cheapest flight from St Louis (STL) to Sofia (SOF)
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Cheap flights from St Louis to Sofia in December 2025 , January 2026

31 Dec - 30 Jan $ 895.00
STL
St Louis
Frontier Airlines
3 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
2 STOPS
STL
St Louis
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31 Dec - 23 Jan $ 970.00
STL
St Louis
Frontier Airlines
3 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
3 STOPS
STL
St Louis
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26 Dec - 16 Jan $ 1,177.00
STL
St Louis
Lufthansa
2 STOPS
SOF
Sofia
SOF
Sofia
Lufthansa
2 STOPS
STL
St Louis
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Last minute flights from St Louis to Sofia

29 Dec - 31 Dec $ 1,540.00
STL
St Louis
Lufthansa
2 STOPS
SOF
Sofia
SOF
Sofia
Lufthansa
1 STOPS
STL
St Louis
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29 Dec - 01 Jan $ 1,610.00
STL
St Louis
Frontier Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
3 STOPS
STL
St Louis
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28 Dec - 01 Jan $ 1,690.00
STL
St Louis
Frontier Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
3 STOPS
STL
St Louis
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One-way flights to Sofia from St Louis

8:15 AM - 10:25 AM
United Airlines
2 Stops
21h
STL - SOF
$ 517
Kiwi
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6:30 AM - 10:35 AM
United Airlines
2 Stops
23h 20m
STL - SOF
$ 718
Kiwi
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3:50 PM - 10:20 AM
Lufthansa
1 Stops
13h 45m
STL - SOF
$ 1,009
Kiwi
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How to find the cheapest flight from St Louis (STL) to Sofia (SOF)

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