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Cheap flights from Bismarck (BIS) 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 Bismarck (BIS) to Sofia (SOF)

How to find the cheapest flight from Bismarck (BIS) to Sofia (SOF)
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How to find the cheapest flight from Bismarck (BIS) to Sofia (SOF)
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How to find the cheapest flight from Bismarck (BIS) to Sofia (SOF)
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Cheap flights from Bismarck to Sofia in May , June 2026

28 May - 18 Jun $ 1,544.00
BIS
Bismarck
Allegiant Air
2 STOPS
SOF
Sofia
SOF
Sofia
Allegiant Air
3 STOPS
BIS
Bismarck
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28 May - 04 Jun $ 1,558.00
BIS
Bismarck
Allegiant Air
2 STOPS
SOF
Sofia
SOF
Sofia
Allegiant Air
3 STOPS
BIS
Bismarck
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28 May - 14 Jun $ 1,573.00
BIS
Bismarck
Allegiant Air
2 STOPS
SOF
Sofia
SOF
Sofia
Allegiant Air
3 STOPS
BIS
Bismarck
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One-way flights to Sofia from Bismarck

12:04 PM - 6:10 PM
Bulgaria Air
2 Stops
25h 26m
BIS - SOF
$ 840
Kiwi
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1:45 PM - 8:20 PM
United Airlines
2 Stops
25h 30m
BIS - SOF
$ 1,223
Kiwi
Pick dates
1:45 PM - 7:40 PM
United Airlines
2 Stops
25h 5m
BIS - SOF
$ 1,238
Kiwi
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How to find the cheapest flight from Bismarck (BIS) to Sofia (SOF)

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