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

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

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

One-Way flights

10 May Frontier Airlines direct
16 May Frontier Airlines direct
01 May Frontier Airlines direct
07 May Frontier Airlines direct
05 May Frontier Airlines direct
12 May Frontier Airlines direct
02 May Frontier Airlines direct
15 May Frontier Airlines direct
03 May Frontier Airlines direct
14 May Frontier Airlines direct

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

Book a cheap hotel in Ontario

Cheap car rent in Ontario