Cheapest one-way flights from Ontario to Las Vegas in May from $16

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

AirHint found the following cheapest one-way flights from Ontario (ONT) to Las Vegas (LAS) in May 2025 (see full year).

One-Way flights

05 May Frontier Airlines direct
01 May Frontier Airlines direct
10 May Frontier Airlines direct
03 May Frontier Airlines direct
13 May Frontier Airlines direct
14 May Frontier Airlines direct
11 May Frontier Airlines direct
07 May Frontier Airlines direct
04 May Frontier Airlines direct
08 May Frontier Airlines direct

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

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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