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

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

One-Way flights

01 Jun Southwest Airlines direct
01 Jun Southwest Airlines
02 Jun Southwest Airlines direct
02 Jun Southwest Airlines
13 Jun Alaska Airlines
30 Jun Alaska Airlines
07 Jun Alaska Airlines
14 Jun Alaska Airlines

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

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.

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.