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

Return flights

30 Apr - 04 May	Austrian Airlines	direct
06 Apr - 13 Apr	Austrian Airlines	direct
08 Apr - 16 Apr	Austrian Airlines	direct
09 Apr - 12 Apr	Ryanair	direct
14 Apr - 30 Apr	Ryanair	direct
08 Apr - 12 Apr	Ryanair	direct
13 Apr - 30 Apr	Ryanair	direct
09 Apr - 30 Apr	Ryanair	direct
14 Apr - 16 Apr	Ryanair	direct
13 Apr - 16 Apr	Ryanair	direct
09 Apr - 16 Apr	Ryanair	direct

Also check the deals for one-way flights from Bucharest 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 Bucharest to Vienna in April from $105

Return flights