Cologne (CGN)Zurich (ZRH)
- non-stop flights:
- 1–3 per day
- flight duration:
- at least
- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
from $81number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
1–3 2–3 1–3 1–3 1–3 1–2 1–2 Dusseldorf (DUS)Zurich (ZRH)
- non-stop flights:
- 5–9 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 
4 4 4 4 4 3 3–4 
2–4 2–3 1–3 1–3 1–3 1–2 1–3 
1 1 1 1 1 1 1 
0 0 1 1 0 1 0 Hamburg (HAM)Zurich (ZRH)
- non-stop flights:
- 5–8 per day
- flight duration:
- at least
- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
from $98number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
5 5 5 5 5 4 4–5 
2–3 2–3 2–3 2–3 2–3 1–2 1–2 
0 0 0 0 0 1 0 Berlin (BER)Zurich (ZRH)
- non-stop flights:
- 7–14 per day
- flight duration:
- at least
- Sun
- Mon
- Tue
- Wed
- Thu
- Fri
- Sat
from $30number of non-stop flights per airline and day of the week Sun Mon Tue Wed Thu Fri Sat 
8 8 8 8 7–8 6–7 8 
1–3 2–3 1–3 1–3 1–3 0 1–2 
1–2 1–2 1–2 1–2 1–2 1 1–2 
1 0 1 0 1 0 1