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Cheap flights from Knoxville (TYS) 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 Knoxville (TYS) to Sofia (SOF)

How to find the cheapest flight from Knoxville (TYS) to Sofia (SOF)
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How to find the cheapest flight from Knoxville (TYS) to Sofia (SOF)
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How to find the cheapest flight from Knoxville (TYS) to Sofia (SOF)
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Cheap flights from Knoxville to Sofia in September , October 2026

30 Sep - 31 Oct $ 1,330.00
TYS
Knoxville
Allegiant Air
2 STOPS
SOF
Sofia
SOF
Sofia
Allegiant Air
3 STOPS
TYS
Knoxville
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30 Sep - 28 Oct $ 1,416.00
TYS
Knoxville
Allegiant Air
2 STOPS
SOF
Sofia
SOF
Sofia
Allegiant Air
2 STOPS
TYS
Knoxville
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30 Sep - 21 Oct $ 1,423.00
TYS
Knoxville
Allegiant Air
2 STOPS
SOF
Sofia
SOF
Sofia
Allegiant Air
2 STOPS
TYS
Knoxville
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Last minute flights from Knoxville to Sofia

28 Sep - 01 Oct $ 1,614.00
TYS
Knoxville
Allegiant Air
3 STOPS
SOF
Sofia
SOF
Sofia
Allegiant Air
2 STOPS
TYS
Knoxville
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26 Sep - 01 Oct $ 1,672.00
TYS
Knoxville
Allegiant Air
3 STOPS
SOF
Sofia
SOF
Sofia
Allegiant Air
2 STOPS
TYS
Knoxville
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26 Sep - 01 Oct $ 1,718.00
TYS
Knoxville
Allegiant Air
3 STOPS
SOF
Sofia
SOF
Sofia
Allegiant Air
2 STOPS
TYS
Knoxville
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One-way flights to Sofia from Knoxville

8:30 AM - 9:35 PM
Wizz Air
2 Stops
34h 5m
TYS - SOF
$ 635
Kiwi
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8:10 AM - 3:35 PM
easyJet
2 Stops
28h 10m
TYS - SOF
$ 646
Kiwi
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12:22 PM - 10:00 PM
Wizz Air
3 Stops
27h 48m
TYS - SOF
$ 702
Kiwi
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How to find the cheapest flight from Knoxville (TYS) to Sofia (SOF)

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