Cheapest return flights from Las Vegas to Ontario in March from $35

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

AirHint found the following cheapest return flights from Las Vegas (LAS) to Ontario (ONT) in March 2025 (see full year).

Return flights

24 Mar - 26 Mar Frontier Airlines direct
24 Mar - 24 Mar Frontier Airlines direct
25 Mar - 27 Mar Frontier Airlines direct
18 Mar - 16 Apr Frontier Airlines direct
11 Mar - 12 Mar Frontier Airlines direct
01 Mar - 24 Mar Frontier Airlines direct
25 Mar - 01 Apr Frontier Airlines direct
25 Mar - 31 Mar Frontier Airlines direct
18 Mar - 20 Apr Frontier Airlines direct
15 Mar - 18 Mar Frontier Airlines direct
15 Mar - 17 Mar Frontier Airlines direct
11 Mar - 13 Mar Frontier Airlines direct
11 Mar - 26 Mar Frontier Airlines direct
12 Mar - 16 Apr Frontier Airlines direct
13 Mar - 13 Apr Frontier Airlines direct
27 Mar - 10 Apr Southwest Airlines direct

Also check the deals for one-way flights from Las Vegas to Ontario 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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