Cheapest return flights from Seattle to Las Vegas in September from $243

AirHint found the following cheapest return flights from Seattle (SEA) to Las Vegas (LAS) in September 2026 (see full year).

Return flights

25 Sep - 26 Sep Alaska Airlines direct
24 Sep - 27 Sep Alaska Airlines direct

Also check the deals for one-way flights from Seattle to Las Vegas in September.

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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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