Cheapest return flights from Phoenix to Las Vegas in March from $75

AirHint found the following cheapest return flights from Phoenix (PHX) to Las Vegas (LAS) in March 2026 (see full year).

Return flights

04 Mar - 08 Mar Frontier Airlines direct
28 Mar - 31 Mar Frontier Airlines direct
21 Mar - 22 Mar Frontier Airlines direct
28 Mar - 04 Apr Frontier Airlines direct
29 Mar - 07 Apr Frontier Airlines direct
19 Mar - 22 Mar Frontier Airlines direct
13 Mar - 15 Mar Frontier Airlines direct
28 Mar - 25 Apr Allegiant Air
28 Mar - 25 Apr Southwest Airlines direct

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