Cheap flights from Las Vegas to Seattle from $78

In general, February is the cheapest month to fly from Las Vegas to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $138. If you don’t want to visit Seattle in February, then you should wait until January to fly from Las Vegas, when ticket prices are also cheap, with an average price of $148.

On average, the least expensive day to fly to Seattle from Las Vegas is on a Friday. momondo users have found tickets for Friday departures for as low as $234. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Tuesday is the most expensive day to depart from Las Vegas because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $417.

Flying to Seattle from Las Vegas in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $272 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the evening, with an average ticket price of $350. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Seattle from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $197 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Las Vegas for as low as $151 on momondo.

There are 4 cabin classes available to choose from on Las Vegas to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Frontier, Southwest, and American Airlines are the most popular carriers operating from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl

Frontier, Alaska Airlines and Delta are the top three most popular airlines that fly to Seattle from Las Vegas according to our data. Frontier is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 4 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% of flights between Las Vegas and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 147 minutes.

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

Tuesday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 7% of their flights experiencing any sort of delay.

As of October 2026, there are 25 flights per day flying from Las Vegas to Seattle. The most common time of day flights depart is 6:00AM, with 51% of flights taking off at noon.

179 flights are operational weekly from Las Vegas to Seattle as of October 2026. The most popular departure day for this route is Wed, with 26% of flights per week taking off on this day.