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

Return flights

14 Aug - 17 Aug	Allegiant Air	direct
16 Aug - 19 Aug	Alaska Airlines
22 Aug - 25 Aug	Alaska Airlines
29 Aug - 01 Sep	Southwest Airlines	direct

Also check the deals for one-way flights from Spokane 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 Spokane to Las Vegas in August from $108

Return flights