AirHint found the following cheapest return flights from Waterloo (YKF) to Vienna (VIE) in April 2026 (see full year).
Return flights
| 28 Apr - 23 May | WestJet | ||
| 27 Apr - 23 May | WestJet | ||
| 29 Apr - 23 May | WestJet |
Also check the deals for one-way flights from Waterloo to Vienna in April.
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