Cheapest one-way flights from Las Vegas to Ontario in March from $26

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

One-Way flights

01 Mar Frontier Airlines direct
02 Mar Frontier Airlines direct
04 Mar Frontier Airlines direct
10 Mar Frontier Airlines direct
06 Mar Frontier Airlines direct
12 Mar Frontier Airlines direct
05 Mar Frontier Airlines direct
09 Mar Frontier Airlines direct
03 Mar Frontier Airlines direct
23 Mar Frontier Airlines direct

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

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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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