AirHint found the following cheapest return flights from Cologne (CGN) to Vienna (VIE) in April 2026 (see full year).

Return flights

02 Apr - 07 Apr	Eurowings	direct
17 Apr - 19 Apr	Austrian Airlines
09 Apr - 12 Apr	Austrian Airlines
10 Apr - 12 Apr	Austrian Airlines
17 Apr - 19 Apr	Austrian Airlines	direct
29 Apr - 03 May	Austrian Airlines
29 Apr - 03 May	Eurowings	direct
30 Apr - 03 May	Eurowings	direct
03 Apr - 05 Apr	Eurowings

Also check the deals for one-way flights from Cologne to Vienna in April.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Cologne to Vienna in April from $129

Return flights