AirHint found the following cheapest return flights from Ottawa (YOW) to Los Angeles (LAX) in October 2025 (see full year).

Return flights

04 Oct - 05 Oct	Air Canada
10 Oct - 19 Oct	WestJet
06 Oct - 18 Oct	WestJet
06 Oct - 14 Oct	WestJet
07 Oct - 25 Oct	WestJet
07 Oct - 31 Oct	WestJet
07 Oct - 29 Oct	WestJet
21 Oct - 13 Nov	WestJet
07 Oct - 03 Nov	WestJet
28 Oct - 19 Nov	Air Canada
29 Oct - 04 Nov	Air Canada
29 Oct - 11 Nov	Air Canada
28 Oct - 14 Nov	Air Canada
15 Oct - 05 Nov	WestJet
14 Oct - 09 Nov	WestJet
15 Oct - 03 Nov	WestJet
22 Oct - 09 Nov	WestJet
04 Oct - 22 Oct	Porter Airlines (Canada) Ltd
04 Oct - 07 Oct	Porter Airlines (Canada) Ltd
04 Oct - 11 Oct	Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Ottawa to Los Angeles in October.

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.

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Cheapest return flights from Ottawa to Los Angeles in October from 179€

Return flights