Salt Lake City to Seattle (SLC–SEA) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
SLC–SEA is served by 4 airlines with nonstop service. Delta Air Lines, Alaska Airlines and Frontier lead the route. The flight covers 688 miles in approximately 2h 17m. Beyond nonstop, 1-stop connecting options are also available.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| DL Delta Air Lines Also: AF, AM, KE, VS, WS | 48 | 321, 32Q, 738, 739 | 2h14-2h21 | SkyTeam | AF, AM, KE, VS, WS | |
| AS Alaska Airlines Also: AY, DE, FI, HA, JL, JX, KE, QR | 46 | 738, 739, 73G, 73H, B39M, E75 | 2h02-2h26 | Oneworld | AY, DE, FI, HA, JL, JX, KE, QR | |
| F9 Frontier Also: Y4 | 0 | – | – | – | Y4 | |
| OO SkyWest Airlines | 0 | – | – | – | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach Seattle from Salt Lake City
| Metric | SLC→SEA | IDA→SEA |
|---|---|---|
| Distance from SLC | – | 188 mi |
| Nonstop airlines | 4 | 4 |
| Weekly flights | 254 | 32 |
| Flight time | 2h 17m | 2h 4m |
| Departure OTP | 68% | – |
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 Delta Air Lines, Alaska Airlines, 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 is about 2 hours 17 minutes gate to gate. The route covers a distance of 688 miles (1,107 km). There are approximately 254 weekly flights outbound and 244 return, totaling 498 flights per week in both directions.
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Boise Air Terminal/Gowen Field, Portland and Spokane. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Idaho Falls (IDA).