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Cheapest one-way flights from Seattle (SEA) to Las Vegas (LAS), December

10 dates in December, from $ 23. Book in one tap, or check whether to buy now or wait.

One-way Return

Dates, airline, and price
Dates	Airline	Price
22 Dec	Frontier Airlines Direct Flight
11 Dec	Frontier Airlines Direct Flight
20 Dec	Frontier Airlines Direct Flight

30 Dec	Frontier Airlines
30 Dec	Frontier Airlines Direct Flight
25 Dec	Frontier Airlines
26 Dec	Frontier Airlines Direct Flight
17 Dec	Southwest Airlines Direct Flight
17 Dec	United
18 Dec	Southwest Airlines Direct Flight

Cheapest deals for the full year

Deals for return flights from Seattle to Las Vegas in December.

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Updated Oct 10, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Seattle (SEA) to Las Vegas (LAS), December

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