Cheap flights from Seattle to Las Vegas from $124

The cheapest month to fly to Las Vegas from Seattle is in January. Flight prices, which tend to average around $244, are often lower during this time because this is during the off-season. If you aren’t able to travel to Las Vegas during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $283.

On average, the least expensive day to fly to Las Vegas from Seattle is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $406. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Las Vegas is Friday, with ticket prices averaging around $425.

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You are more likely to see cheaper flights to Las Vegas from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $307 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Seattle for as low as $257 on momondo.

As of May 2026, prices for Seattle to Las Vegas flights are approximately 2% cheaper when compared to flights at the same time last year.

Historically, on average around 16% of flights between Seattle and Las Vegas have experienced a delay on any given week. The average delay length over the past 12 months has been 125 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Delta have had the fewest delays on this route over the last 12 months, with about 11% of their flights experiencing any sort of delay.

As of May 2026, 26 flights take off from Seattle and land in Las Vegas each day. The most common flight departure time for this route is 20:00, with 45% of daily flights taking off in the evening.

The number of flights available between Seattle and Las Vegas is 184 per week as of May 2026. The most frequent departure day is Wed, with 20% of weekly flights leaving on this day.