Cheapest return flights from Las Vegas to Ontario in June from $38

Best time to book flights for Las Vegas (LAS) to Ontario (ONT) flights at AirHint

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

Return flights

03 Jun - 10 Jun Frontier Airlines direct
10 Jun - 12 Jun Frontier Airlines direct
14 Jun - 28 Jun Frontier Airlines direct
17 Jun - 20 Jun Frontier Airlines direct
07 Jun - 21 Jun Frontier Airlines direct
21 Jun - 29 Jun Frontier Airlines direct
11 Jun - 14 Jun Southwest Airlines
19 Jun - 25 Jun Southwest Airlines
21 Jun - 28 Jun Southwest Airlines
16 Jun - 16 Jun Southwest Airlines
05 Jun - 31 Jul 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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