Cheap flights from Utah to Seattle from $142

In general, February is the cheapest month to fly from Utah to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $177. If you don’t want to visit Seattle in February, then you should wait until January to fly from Utah, when ticket prices are also cheap, with an average price of $179.

On average, the least expensive day to fly to Seattle from Utah is on a Friday. momondo users have found tickets for Friday departures for as low as $327. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Utah because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $730.

Flying to Seattle from Utah in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $438 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the evening, with an average ticket price of $632. Departure times in the evening 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 Utah - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Utah when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $240 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Utah for as low as $181 on momondo.

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

Southwest, Delta, and Alaska Airlines are the most popular carriers operating from Utah to Seattle/Tacoma Intl

Alaska Airlines, Delta and Frontier are the top three most popular airlines that fly to Seattle from Utah according to our data. Alaska Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

As of August 2026, there are 25 flights per day flying from Utah to Seattle. The most common time of day flights depart is 11:00AM, with 45% of flights taking off at noon.

179 flights are operational weekly from Utah to Seattle as of August 2026. The most popular departure day for this route is Wed, with 23% of flights per week taking off on this day.