Cheapest return flights from Las Vegas to Ontario in October from $142

Best time to book flights for Las Vegas (LAS) to Ontario (ONT) flights at AirHint

AirHint found the following cheapest return flights from Las Vegas (LAS) to Ontario (ONT) in October 2025 (see full year).

Return flights

02 Oct - 09 Oct Frontier Airlines direct
26 Oct - 14 Nov Frontier Airlines direct
10 Oct - 12 Oct Frontier Airlines direct
08 Oct - 09 Oct Southwest Airlines
25 Oct - 01 Nov Southwest Airlines
18 Oct - 25 Oct Southwest Airlines

Also check the deals for one-way flights from Las Vegas to Ontario in October.

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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