Cheapest return flights from Ontario to Vienna in April from $904

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

Return flights

08 Apr - 15 Apr British Airways
21 Apr - 28 Apr British Airways
13 Apr - 27 Apr British Airways
19 Apr - 03 May British Airways
16 Apr - 30 Apr British Airways
01 Apr - 08 Apr British Airways
28 Apr - 05 May Iberia
19 Apr - 28 Apr China Airlines

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

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