Cheapest return flights from Ontario to Frankfurt in May from $971

AirHint found the following cheapest return flights from Ontario (ONT) to Frankfurt (FRA) in May 2026 (see full year).

Return flights

04 May - 17 May British Airways
12 May - 26 May British Airways
07 May - 18 May Alaska Airlines
04 May - 25 May Alaska Airlines
19 May - 26 May British Airways
12 May - 05 Jun British Airways
12 May - 06 Jun British Airways
18 May - 27 May Alaska Airlines
19 May - 02 Jun Alaska Airlines
19 May - 24 May British Airways
24 May - 04 Jun Alaska Airlines
24 May - 03 Jun Alaska Airlines
26 May - 01 Jun Alaska Airlines
20 May - 30 May Alaska Airlines
31 May - 14 Jun Alaska Airlines
22 May - 31 May Alaska Airlines
29 May - 11 Jun British Airways

Also check the deals for one-way flights from Ontario to Frankfurt in May.

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