- Sofia (SOF) Vienna (VIE)
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1–4 non-stop flights per dayat least 1h 35minfrom $92 - Varna (VAR) Vienna (VIE)
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up to 2 non-stop flights per dayat least 1h 50minfrom $116 - Burgas (BOJ) Vienna (VIE)
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up to 1 non-stop flight per dayat least 1h 40minfrom $86