Cheap flights from Salt Lake City to Seattle from $142

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 January to fly from Salt Lake City, when ticket prices are also cheap, with an average price of $179.

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 $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 Salt Lake City because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $730.

Flying to Seattle from Salt Lake City 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 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 $241 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 $187 on momondo.

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

No. A direct flight is the cheapest option for a flight between Salt Lake City to Seattle.

As of August 2026, prices for Salt Lake City to Seattle flights are approximately 74% more expensive when compared to flights at the same time last year.

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

Alaska Airlines, Delta and Frontier 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 48% 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.

The number of flights available between Salt Lake City and Seattle is 27 per day as of August 2026. The most frequent departure time is 11:00AM, with 45% of daily flights leaving at noon.

193 flights are operational weekly from Salt Lake City to Seattle as of August 2026. The most popular departure day for this route is Sat, with 20% of flights per week taking off on this day.