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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 April , May 2026

15 Apr - 27 May $ 1,189.00
STL
St Louis
Frontier Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
3 STOPS
STL
St Louis
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23 Apr - 27 May $ 1,250.00
STL
St Louis
Frontier Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
3 STOPS
STL
St Louis
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23 Apr - 27 May $ 1,263.00
STL
St Louis
Frontier Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
3 STOPS
STL
St Louis
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Last minute flights from St Louis to Sofia

15 Apr - 01 May $ 1,414.00
STL
St Louis
Frontier Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
3 STOPS
STL
St Louis
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23 Apr - 01 May $ 1,475.00
STL
St Louis
Frontier Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
3 STOPS
STL
St Louis
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23 Apr - 01 May $ 1,488.00
STL
St Louis
Frontier Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
3 STOPS
STL
St Louis
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One-way flights to Sofia from St Louis

8:30 AM - 9:15 AM
United Airlines
2 Stops
19h 40m
STL - SOF
$ 630
Kiwi
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3:30 PM - 10:25 AM
United Airlines
1 Stops
14h 5m
STL - SOF
$ 642
Kiwi
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3:30 PM - 10:15 AM
United Airlines
1 Stops
13h 55m
STL - SOF
$ 642
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.