Cheapest one-way flights from Ontario to Las Vegas in March 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 March 2025 (see full year).

One-Way flights

20 Mar Frontier Airlines direct
19 Mar Frontier Airlines direct
24 Mar Frontier Airlines direct
31 Mar Frontier Airlines direct
27 Mar Frontier Airlines direct
18 Mar Frontier Airlines direct
11 Mar Frontier Airlines direct
26 Mar Frontier Airlines direct
17 Mar Frontier Airlines direct
12 Mar Frontier Airlines direct

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

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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