Cheapest one-way flights from Ontario to Las Vegas in August from $125

AirHint found the following cheapest one-way flights from Ontario (ONT) to Las Vegas (LAS) in August 2026 (see full year).

One-Way flights

30 Aug Southwest Airlines direct
07 Aug Southwest Airlines direct
11 Aug Southwest Airlines direct
11 Aug Southwest Airlines
08 Aug Southwest Airlines direct
08 Aug Southwest Airlines
31 Aug Southwest Airlines direct
31 Aug Southwest Airlines
28 Aug Southwest Airlines direct
19 Aug Southwest Airlines direct

Also check the deals for return flights from Ontario to Las Vegas in August.

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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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