Cheap flights from Seattle to Las Vegas from C$ 120

If you’re not able to fly to Las Vegas in January, then August is your next best option. Flight prices from Seattle to Las Vegas during August average around C$ 285.

The cheapest day to depart from Seattle to Las Vegas is on a Sunday. Travellers who choose to depart for Las Vegas on a Sunday will often find tickets for as low as C$ 189. The most expensive day to fly to Las Vegas is Saturday, with ticket prices averaging around C$ 325.

The cheapest time of day to fly to Las Vegas is in the evening when flights can be purchased for as low as C$ 283. Try not to purchase tickets at noon because they tend to be around C$ 324. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 C$ 309 when searching weeks out. 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 C$ 256 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.

You could potentially save up to 49% on your flight if you consider stops on a Seattle to Las Vegas flight.

As of May 2026, prices for Seattle to Las Vegas flights are approximately 0% more expensive when compared to flights at the same time last year.

Delta, Alaska Airlines, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Las Vegas Harry Reid Intl

Frontier, Alaska Airlines and Delta are the top three most popular airlines that fly to Las Vegas from Seattle according to our data. Frontier is the first choice among our users, with 45% of people opting to fly with this airline when travelling to Las Vegas. Keep in mind that there are 6 different airlines that fly to Las Vegas on a routine basis, so you have a few additional options to choose from.

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 124 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. Friday has historically seen more delays on average compared to the rest of the week.

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

As of May 2026, there are 21 flights per day flying from Seattle to Las Vegas. The most common time of day flights depart is 8:00p.m., with 34% of flights taking off in the afternoon.

The number of flights available between Seattle and Las Vegas is 148 per week as of May 2026. The most frequent departure day is Tue, with 23% of weekly flights leaving on this day.