Cheapest return flights from Ontario to Las Vegas in August from $68

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

Return flights

05 Aug - 12 Aug Frontier Airlines direct
02 Aug - 09 Aug Frontier Airlines direct
09 Aug - 12 Aug Frontier Airlines direct
02 Aug - 05 Aug Frontier Airlines direct
13 Aug - 03 Sep Frontier Airlines direct
12 Aug - 16 Aug Frontier Airlines direct
23 Aug - 26 Aug Frontier Airlines direct
30 Aug - 06 Sep Frontier Airlines direct
11 Aug - 13 Aug Frontier Airlines direct
05 Aug - 07 Aug Frontier Airlines direct
04 Aug - 09 Aug Frontier Airlines direct
18 Aug - 20 Aug Frontier Airlines direct
30 Aug - 02 Sep Frontier Airlines direct
27 Aug - 10 Sep Southwest Airlines direct
26 Aug - 02 Sep Southwest Airlines direct
27 Aug - 03 Sep Southwest Airlines direct
28 Aug - 01 Sep Frontier Airlines direct
29 Aug - 01 Sep Frontier Airlines direct
29 Aug - 05 Sep Frontier Airlines direct
25 Aug - 01 Sep Southwest Airlines direct

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

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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