Cheapest one-way flights from Ontario to Las Vegas in August from $145

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

One-Way flights

03 Aug Southwest Airlines direct
03 Aug Southwest Airlines
25 Aug Alaska Airlines
30 Aug Alaska Airlines

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

Powered by

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.

Book a cheap hotel in Las Vegas

Cheap car rent in Las Vegas

Feel free to contact us with any feedback or request another flight research.