Cheapest return ONT–FRA flights, May

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

Return flights

30 May - 18 Jun Alaska Airlines
19 May - 02 Jun British Airways
26 May - 02 Jun British Airways
24 May - 15 Jun British Airways
25 May - 05 Jun British Airways
25 May - 12 Jun British Airways
23 May - 06 Jun Turkish Airlines
06 May - 20 May British Airways
09 May - 23 May British Airways
16 May - 30 May British Airways
11 May - 26 May British Airways
04 May - 14 May British Airways
07 May - 18 May British Airways
10 May - 23 May Iberia
12 May - 26 May British Airways
03 May - 14 May British Airways
04 May - 10 May British Airways
06 May - 03 Jun British Airways
21 May - 04 Jun British Airways
30 May - 14 Jun British Airways

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

Powered by

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.

Book a cheap hotel in Frankfurt

Cheap car rent in Frankfurt

Feel free to contact us with any feedback or request another flight research.