Cheap flights from Seattle to Las Vegas from £70

In general, January is the cheapest month to fly from Seattle to Las Vegas. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £132. If you’re not able to fly to Las Vegas in January, then February is your next best option. Flight prices from Seattle to Las Vegas during February average around £175.

The cheapest day to depart on your flight to Las Vegas is on a Tuesday when prices can be found for as low as £251. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £380.

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 £193 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 £158 on momondo.

There are 3 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 13% on your flight if you consider stops on a Seattle to Las Vegas flight.

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.

76 flights are operational weekly from Seattle to Las Vegas as of October 2026. The most popular departure day for this route is Wed, with 51% of flights per week taking off on this day.