The cheapest times to fly from SLC to SEA are
- January 8th to February 4th
- May 28th to July 15th (except the week of June 18th)
- August 13th to November 18th
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SLC to SEA is early September. Prices can be as high as $352 for Sunday flights during late July, or as low as $197 for Tuesday flights around early September.
When to Fly to Seattle
Flying from Salt Lake City, UT (SLC) to Seattle, WA (SEA) will usually cost between $204 to $295 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early September with an average ticket price of $206. Due to high demand the most expensive time to fly is late July, with an average price of $285. Planning your trip to low-cost times can easily save you $79 on economy flights and even more on first-class flights. Generally, any price below $253 can be considered a good price for a round-trip SLC to SEA flight.
See below for a graph of average weekly prices for the SLC to SEA route. All prices are for round-trip tickets in USD.
Compared to other flights, the SLC to SEA flight is much cheaper than the average and costs much less than the average flight leaving from Salt Lake City. The average price per mile (for a direct flight) is $0.23, which is below average.
Flight Prices by Day of the Week
Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $51 (19%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $217. Return trip prices are from the SEA to SLC flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from SLC to SEA can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 2 hour 13 minutes may be realistic.
Flight Questions Answered
Still have questions about flying from SLC to SEA? We’ve got answers.
Which airlines fly this route?
You can find 11 major airlines flying this route most often: Alaska, American, China Eastern, Delta, Emirates, Fiji Airways, Frontier, JetBlue, Singapore Airlines, Southwest, United, and potentially more during busy seasons.
How far away is it from Seattle/Tacoma International Airport to Salt Lake City International Airport?
The distance between the two airports is roughly 688 miles or 1107 kilometers.
How long does it take to fly from SLC to SEA?
The real-world flight time for a nonstop SLC to SEA flight is about 2 hour 13 minutes.
How many flights go between Salt Lake City, UT and Seattle, WA?
It depends on the day of the week and the date, but a typical day might have around 72 available flights from SLC to SEA.
Airport Location Info
|Origination airport name||Salt Lake City International Airport|
|City||Salt Lake City, UT|
|Country||the United States|
|Destination airport name||Seattle/Tacoma International Airport|
|Country||the United States|
Late and Early Flight Data
Flights from SLC to SEA tend to depart late far less frequently than the average flight. According to our recently updated data, 18% of flights departed 5 or more minutes late, and 37% of flights left 5 or more minutes early. On average you can expect to leave SEA heading for SLC about 3 minutes late. This does not significantly impact arrival time, as the average landing time in Seattle, WA is about 1 minutes early. The numbers below show a recent average of take-off times versus the scheduled departure flight:
- Delta: 7 minutes late
- SkyWest: 5 minutes early
- Alaska: 1 minutes early
- Some airlines not reporting
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.