Vienna (VIE)Sofia (SOF)
- non-stop flights:
- 1–4 per day
- flight duration:
- at least
- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
from $79number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 3–4 2–4 3–4 3–4 3–4 1–4 3–4 1–2 1–2 1–2 1–3 1–2 1–2 1–2 Vienna (VIE)Varna (VAR)
- non-stop flights:
- up to 2 per day
- flight duration:
- at least
- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
from $44number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 1–2 1–2 1–2 1 1–2 1–2 1–2 1 0 1 0 1 1 1 Vienna (VIE)Burgas (BOJ)
- non-stop flights:
- 4 per week
- flight duration:
- at least
- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
from $39number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 0 1 1 1 0 1 0