Cheap flights from Salt Lake City to Seattle from $109

In general, February is the cheapest month to fly from Salt Lake City to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $172. If you don’t want to visit Seattle in February, then you should wait until March to fly from Salt Lake City, when ticket prices are also cheap, with an average price of $177.

On average, the least expensive day to fly to Seattle from Salt Lake City is on a Friday. momondo users have found tickets for Friday departures for as low as $310. 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 Salt Lake City because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $712.

Flying to Seattle from Salt Lake City at noon is the least expensive time of day to depart. momondo users have found prices as low as $432 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $631. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Salt Lake City to Seattle/Tacoma Intl for the best Salt Lake City - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Salt Lake City when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $226 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Salt Lake City for as low as $182 on momondo.

You could potentially save up to 4% on your flight if you consider stops on a Salt Lake City to Seattle flight.

As of May 2026, prices for Salt Lake City to Seattle flights are approximately 3% cheaper when compared to flights at the same time last year.

United Airlines and Delta are the most popular carriers operating from Salt Lake City to Seattle/Tacoma Intl

Alaska Airlines, Frontier and Delta are the top three most popular airlines that fly to Seattle from Salt Lake City according to our data. Alaska Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 5 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

The number of flights available between Salt Lake City and Seattle is 27 per day as of May 2026. The most frequent departure time is 3:00PM, with 54% of daily flights leaving in the afternoon.

191 flights are operational weekly from Salt Lake City to Seattle as of May 2026. The most popular departure day for this route is Mon, with 18% of flights per week taking off on this day.