Cheapest return flights from Ottawa to Los Angeles in September from $270

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

Return flights

25 Sep - 28 Sep United
19 Sep - 26 Sep WestJet
09 Sep - 16 Sep WestJet
02 Sep - 13 Sep Porter Airlines (Canada) Ltd
02 Sep - 16 Sep Porter Airlines (Canada) Ltd
25 Sep - 26 Sep Porter Airlines (Canada) Ltd
11 Sep - 28 Sep Porter Airlines (Canada) Ltd
11 Sep - 13 Sep Porter Airlines (Canada) Ltd
11 Sep - 26 Sep Porter Airlines (Canada) Ltd
11 Sep - 16 Sep Porter Airlines (Canada) Ltd
25 Sep - 15 Oct Porter Airlines (Canada) Ltd
27 Sep - 15 Oct Porter Airlines (Canada) Ltd
27 Sep - 16 Oct Porter Airlines (Canada) Ltd
25 Sep - 12 Oct Porter Airlines (Canada) Ltd
27 Sep - 12 Oct Porter Airlines (Canada) Ltd
25 Sep - 16 Oct Porter Airlines (Canada) Ltd
27 Sep - 18 Oct Porter Airlines (Canada) Ltd

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

Skyscanner

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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