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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 July , August 2026

31 Jul - 28 Aug $ 1,215.00
TYS
Knoxville
Allegiant Air
3 STOPS
SOF
Sofia
SOF
Sofia
Allegiant Air
3 STOPS
TYS
Knoxville
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31 Jul - 28 Aug $ 1,285.00
TYS
Knoxville
Allegiant Air
3 STOPS
SOF
Sofia
SOF
Sofia
Allegiant Air
3 STOPS
TYS
Knoxville
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31 Jul - 29 Aug $ 1,407.00
TYS
Knoxville
WestJet
3 STOPS
SOF
Sofia
SOF
Sofia
WestJet
3 STOPS
TYS
Knoxville
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Last minute flights from Knoxville to Sofia

27 Jul - 31 Jul $ 2,046.00
TYS
Knoxville
Allegiant Air
2 STOPS
SOF
Sofia
SOF
Sofia
Allegiant Air
2 STOPS
TYS
Knoxville
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27 Jul - 31 Jul $ 2,059.00
TYS
Knoxville
Allegiant Air
2 STOPS
SOF
Sofia
SOF
Sofia
Allegiant Air
2 STOPS
TYS
Knoxville
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27 Jul - 31 Jul $ 2,081.00
TYS
Knoxville
Allegiant Air
2 STOPS
SOF
Sofia
SOF
Sofia
Allegiant Air
3 STOPS
TYS
Knoxville
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One-way flights to Sofia from Knoxville

7:20 PM - 9:35 PM
Wizz Air
3 Stops
47h 15m
TYS - SOF
$ 526
Kiwi
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7:20 PM - 9:15 PM
Wizz Air
3 Stops
45h 50m
TYS - SOF
$ 534
Kiwi
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7:20 PM - 11:00 AM
Turkish Airlines
3 Stops
33h 55m
TYS - SOF
$ 612
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.