Cheapest one-way flights from Ontario to Las Vegas in April from 23€

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

One-Way flights

07 Apr Frontier Airlines direct
08 Apr Frontier Airlines direct
01 Apr Frontier Airlines direct
09 Apr Frontier Airlines direct
10 Apr Frontier Airlines direct
29 Apr Southwest Airlines direct
25 Apr Southwest Airlines direct
30 Apr Southwest Airlines direct
15 Apr Southwest Airlines direct
23 Apr Southwest Airlines direct

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

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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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