AirHint found the following cheapest return flights from Mesa (AZA) to Las Vegas (LAS) in August 2025 (see full year).

Return flights

03 Aug - 08 Aug	Allegiant Air
06 Aug - 07 Aug	Allegiant Air
17 Aug - 18 Aug	Allegiant Air
04 Aug - 08 Aug	Allegiant Air
16 Aug - 18 Aug	Allegiant Air
05 Aug - 07 Aug	Allegiant Air
05 Aug - 08 Aug	Allegiant Air
09 Aug - 11 Aug	Allegiant Air
15 Aug - 18 Aug	Allegiant Air
08 Aug - 10 Aug	Allegiant Air
28 Aug - 01 Sep	Allegiant Air
30 Aug - 01 Sep	Allegiant Air
29 Aug - 01 Sep	Allegiant Air
31 Aug - 01 Sep	Allegiant Air

Also check the deals for one-way flights from Mesa to Las Vegas in August.

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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Cheapest return flights from Mesa to Las Vegas in August from $125

Return flights