Cheap flights from Seattle to Las Vegas from $151

The cheapest month to fly to Las Vegas from Seattle is in January. Flight prices, which tend to average around $250, 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 February is also cheap. Prices for this month can be found on momondo for an average of $332.

Fly from Seattle/Tacoma Intl to Las Vegas Harry Reid Intl for the best Seattle/Tacoma Intl - Las Vegas Harry Reid Intl flight prices

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 $365 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 $300 on momondo.

There are 2 cabin classes available to choose from on Seattle to Las Vegas flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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 129 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon 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. Friday 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 13% of their flights experiencing any sort of delay.

As of October 2026, 10 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 54% of daily flights taking off in the evening.

The number of flights available between Seattle and Las Vegas is 76 per week as of October 2026. The most frequent departure day is Wed, with 51% of weekly flights leaving on this day.