Direct Flights from SLC to SEA: Your Ultimate Pacific Northwest Travel Guide
Cheapest flight found
$129
Last updated Mar 13, 2026
Prices by Month
Price History
Tracking the May 7, 2026 departure — the cheapest date we found.
Price Behavior: SLC → SEA
Based on 6 months of fare data collected by Trip Manta.
Lowest Fare
$129
Highest Fare
$194
Median Fare
$184
Price Spread
$65
Prices fluctuate moderately — tracking can help you catch dips.
Cheapest month to fly: May 2026 (from $129)
Most expensive month: July 2026 (from $194)
Biggest price drop caught: $31 between consecutive checks
Most frequent cheapest airline: Frontier
What This Means for You
Flights from Salt Lake City to Seattle range from $129 to $194, a $65 spread across the months we track. If your dates are flexible, May 2026 tends to have the lowest fares. Prices move enough that tracking can save you money — drops often last only a few hours before the algorithm adjusts back up. We have caught drops as large as $31 between hourly checks on this route.
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From
Salt Lake City (SLC)
To
Seattle (SEA)
Airport Information
Salt Lake City (SLC)
Salt Lake City International Airport (SLC) has recently undergone a massive multi-billion dollar redevelopment, resulting in one of the most modern and efficient terminals in the United States. Located just minutes from downtown, it serves as a primary hub for Delta Air Lines, offering travelers state-of-the-art facilities, local dining options, and stunning views of the surrounding mountains through massive floor-to-ceiling glass windows.
Seattle (SEA)
Seattle-Tacoma International Airport (SEA), commonly referred to as Sea-Tac, serves as the primary gateway to the Pacific Northwest and is a major hub for both Alaska Airlines and Delta. The airport features an extensive art collection, a wide variety of local food favorites like Ivar’s Seafood, and efficient transportation links to the Greater Seattle area via the Sound Transit light rail system.
Frequently Asked Questions
What is the average flight time from Salt Lake City to Seattle?
The average non-stop flight duration is approximately 2 hours and 15 minutes, covering a distance of about 690 miles.
Which airlines offer direct flights from SLC to SEA?
Delta Air Lines and Alaska Airlines are the primary carriers offering daily non-stop service, though Southwest also offers competitive one-stop options.
Is there a time difference between Salt Lake City and Seattle?
Yes, Seattle is in the Pacific Time Zone, which is one hour behind Salt Lake City's Mountain Time Zone.
When is the best time to book a flight for the lowest fare?
Travelers typically find the best deals by booking at least 3 to 5 weeks in advance and opting for mid-week departures.
How far is Sea-Tac Airport from downtown Seattle?
The airport is approximately 14 miles south of downtown Seattle, which takes about 20 to 40 minutes by car depending on traffic.
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