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

Return flights

09 Apr - 12 Apr	Austrian Airlines
13 Apr - 19 Apr	Austrian Airlines
30 Apr - 04 May	Eurowings	direct
16 Apr - 19 Apr	Austrian Airlines
17 Apr - 20 Apr	Eurowings	direct
13 Apr - 19 Apr	Austrian Airlines	direct
16 Apr - 19 Apr	Austrian Airlines	direct
30 Apr - 03 May	Lufthansa
09 Apr - 12 Apr	Eurowings	direct
30 Apr - 03 May	Eurowings	direct

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 150€

Return flights