Cheapest return flights from Las Vegas to Ontario in June from $251

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

Return flights

24 Jun - 24 Jun Southwest Airlines
17 Jun - 24 Jun Southwest Airlines
24 Jun - 27 Jun Southwest Airlines
02 Jun - 04 Jun Southwest Airlines
30 Jun - 03 Jul Southwest Airlines
15 Jun - 18 Jun Southwest Airlines

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

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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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