Seattle to Salt Lake City (SEA–SLC) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
SEA–SLC is served by 7 airlines with nonstop service. Alaska Airlines, Delta Air Lines and Aeromexico lead the route. The flight covers 688 miles in approximately 2h. Beyond nonstop, 106 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| AS Alaska Airlines | 47 | 739, 73H, 73J, B39M, E75 | 2h04-2h54 | Oneworld | – | |
| DL Delta Air Lines | 42 | 738, 739, A21N, BCS1, BCS3 | 2h-2h50 | SkyTeam | – | |
| AM Aeromexico | 7 | 739 | 2h03 | SkyTeam | – | |
| FI Icelandair | 7 | 73J | 2h04 | – | – | |
| AF Air France | 6 | – | – | SkyTeam | – | |
| F9 Frontier | 2 | 32Q | 2h08 | – | – | |
| OO SkyWest Airlines | 1 | – | 2h18 | – | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach Salt Lake City from Seattle
| Metric | SEA→SLC | BFI→SLC | PAE→SLC |
|---|---|---|---|
| Distance from SEA | – | 5 mi | 32 mi |
| Nonstop airlines | 7 | 3 | 1 |
| Weekly flights | 106 | 3 | 1 |
| Flight time | 2h | 2h 20m | 2h 32m |
| Departure OTP | 74% | – | – |
Travel Essentials
SEA: MDT · SLC: MDT
When it's 6:00 PM in Seattle, it's 6:00 PM in Salt Lake City.
Link Light Rail runs from downtown Seattle (Westlake station) to the airport in 38 minutes ($3.50 peak). Trains run every 6–12 minutes during peak hours from 5am to 1am. Ride-shares run $30–50 from downtown; SR-99 and I-5 can be heavily congested southbound during afternoon rush (3–7pm).
Sound Transit 574 express bus serves Tacoma ($2.50–4). Sounder commuter rail connects Tacoma to the airport area via a shuttle.
TRAX Green Line from the airport station (inside the terminal) to downtown Salt Lake City takes 18 minutes ($2.50). Direct service to Intermodal Hub, Temple Square, and University of Utah. Running 5am to 11pm.Ride-shares to downtown cost $15–25. Taxis are available. For ski resorts, ski resort shuttles and Canyon Transportation offer door-to-door service ($40–60 to Park City). Car rental is on-site. The terminal opened in 2020 and is a single, modern facility; efficient to navigate.
Semi-arid continental climate at 1,290m elevation. Winters (November–March) bring regular snow and inversions. Temperature inversions trap cold air and pollution in the Salt Lake Valley, producing dense fog that can close or delay flights for hours. Snow is frequent but usually manageable. Inversions are the real disruption risk.
Summers are hot and dry (32–38°C) with low humidity and good flying weather. Afternoon thunderstorms occur in July and August but are brief. Spring is windy. The Great Salt Lake creates localized weather effects including lake-effect snow on the north side of the Wasatch.
SEA–SLC Quick Facts
Frequently Asked Questions
Flights from SEA to SLC
Seattle–Tacoma International Airport (SEA) and Salt Lake City International Airport (SLC) are connected by nonstop service from Air France, Aeromexico, Alaska Airlines, Delta Air Lines, Frontier, Icelandair and SkyWest Airlines. With 106 weekly departures, this is a heavily served route.
SEA to SLC Flight Duration and Schedule
Nonstop flight time from SEA to SLC ranges from 2 hours 0 minutes to 2 hours 54 minutes. The route covers a distance of 688 miles (1,107 km). There are approximately 106 weekly flights outbound and 126 return, totaling 232 flights per week in both directions.
Connecting Options and Alternatives
106 one-stop connections are available, with the fastest taking approximately 4 hours via EGE. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Seattle (BFI) and Everett (PAE).