Cheapest one-way flights from Seattle to Las Vegas in September from $67

Best time to book flights for Seattle (SEA) to Las Vegas (LAS) flights at AirHint

AirHint found the following cheapest one-way flights from Seattle (SEA) to Las Vegas (LAS) in September 2025 (see full year).

One-Way flights

08 Sep Alaska Airlines direct
02 Sep Alaska Airlines direct
28 Sep Alaska Airlines direct
29 Sep Hawaiian Airlines direct
26 Sep United
04 Sep United
26 Sep Delta direct
04 Sep Delta direct
19 Sep Southwest Airlines
19 Sep Southwest Airlines direct

Also check the deals for return flights from Seattle to Las Vegas in September.

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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