Cheapest return flights from Ontario to Madrid in September from $419
AirHint found the following cheapest return flights from Ontario (ONT) to Madrid (MAD)
in September 2026 (see full year ).
Return flights
20 Sep
- 30 Sep
British Airways
$ 419
21 Sep
- 12 Oct
British Airways
$ 475
07 Sep
- 22 Sep
British Airways
$ 496
13 Sep
- 21 Sep
British Airways
$ 552
07 Sep
- 21 Sep
British Airways
$ 559
20 Sep
- 06 Oct
British Airways
$ 585
03 Sep
- 22 Sep
British Airways
$ 630
10 Sep
- 22 Sep
British Airways
$ 630
06 Sep
- 14 Sep
British Airways
$ 684
14 Sep
- 06 Oct
British Airways
$ 711
20 Sep
- 29 Sep
British Airways
$ 740
03 Sep
- 21 Sep
British Airways
$ 744
02 Sep
- 30 Sep
British Airways
$ 762
11 Sep
- 06 Oct
British Airways
$ 831
04 Sep
- 11 Oct
British Airways
$ 987
28 Sep
- 13 Oct
jetBlue
$ 1061
14 Sep
- 05 Oct
jetBlue
$ 1172
30 Sep
- 18 Oct
Turkish Airlines
$ 1508
11 Sep
- 18 Oct
Turkish Airlines
$ 1508
Also check the deals for one-way flights from Ontario to Madrid in September .
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