Salt Lake City to Seattle (SLC–SEA) — Airlines, Schedules & Connections
No flights match your filters.
No nonstop flights on this route. connecting options below.
SLC–SEA is served by 4 airlines with nonstop service. Alaska Airlines, Delta Air Lines and Frontier lead the route. The flight covers 688 miles in approximately 2h 14m. Beyond nonstop, 122 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| AS Alaska Airlines Also: DE, FI, HA, JL, JX, KE, QR | 56 | 738, 7M9, E75 | 2h17-2h27 | Oneworld | DE, FI, HA, JL, JX, KE, QR | |
| DL Delta Air Lines Also: AF, AM, KE, VS, WS | 50 | 223, 321, 32Q, 738, 739 | 2h14-2h24 | SkyTeam | AF, AM, KE, VS, WS | |
| F9 Frontier Also: Y4 | 1 | – | – | – | Y4 | |
| OO SkyWest Airlines | 0 | – | – | – | – |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach Seattle from Salt Lake City
| Metric | SLC→SEA | IDA→SEA |
|---|---|---|
| Distance from SLC | – | 188 mi |
| Nonstop airlines | 4 | 3 |
| Weekly flights | 254 | 42 |
| Flight time | 2h 14m | 1h 54m |
| Departure OTP | 96% | – |
Travel Essentials
SLC: MDT · SEA: PDT
When it's 6:00 PM in Salt Lake City, it's 5:00 PM in Seattle.
TRAX light rail Green Line runs from downtown Salt Lake City (Intermodal Hub / Temple Square) to the airport in 18 minutes ($2.50). Trains run every 15 minutes from 5am to 11pm daily. The airport station is inside the terminal building.Ride-shares from downtown cost $15–25 and take 10–20 minutes. I-80 connects directly to the airport from the east. The airport opened a new terminal in 2020; it is one facility now, replacing the old dual-terminal setup. Ski resort shuttles depart from Ground Transportation for Park City, Deer Valley, and Alta/Snowbird (60–90 min).
Link Light Rail from the airport station (inside the terminal) to downtown Seattle takes 38 minutes ($3.50). No transfers needed; trains run 5am to 1am daily.Taxis and ride-shares to downtown cost $35–55. For Bellevue and Eastside destinations (across Lake Washington), ride-share is faster than Link. Car rentals are in the consolidated rental facility; take the free shuttle from baggage claim. Sound Transit buses serve Tacoma, Renton, and Federal Way.
Marine west coast climate. Winters are mild but persistently grey and rainy (3–9°C). Snow is rare at sea level but can occur December through February, causing significant disruptions when it does. The airport sits between Seattle and Tacoma in an area that receives more fog and low cloud than downtown Seattle.
Summers are famously pleasant (18–25°C) with low humidity and mostly clear skies, one of the best flying climates in the US from June through September. The wettest months are November through January.
SLC–SEA Quick Facts
Frequently Asked Questions
Flights from SLC to SEA
Salt Lake City International Airport (SLC) and Seattle–Tacoma International Airport (SEA) are connected by nonstop service from Alaska Airlines, Delta Air Lines, Frontier and SkyWest Airlines. With 254 weekly departures, this is a heavily served route.
SLC to SEA Flight Duration and Schedule
Nonstop flight time from SLC to SEA ranges from 2 hours 14 minutes to 2 hours 33 minutes. The route covers a distance of 688 miles (1,107 km). There are approximately 254 weekly flights outbound and 271 return, totaling 525 flights per week in both directions.
Connecting Options and Alternatives
122 one-stop connections are available, with the fastest taking approximately 3 hours via BFI. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Idaho Falls (IDA).