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SEA to SLC: distance & flight time
Seattle (Seattle Tacoma International Airport) → Salt Lake City (Salt Lake City International Airport)
688 mi
1,107 km · 598 nm
1h 58m
estimated nonstop flight time
+1h
time difference · heading southeast
See live SEA→SLC fares Phone-only fares on this route — call free
Flight time details
688 miles nonstop takes roughly 1h 58m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- SLC — Salt Lake City International Airport · Salt Lake City, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Near SLC
- HIF · Hill Air Force Base23 mi away
- OGD · Ogden Hinckley Airport28 mi away
- PVU · Provo Municipal Airport42 mi away
- BMC · Brigham City Regional Airport53 mi away
Frequently asked questions
How far is SEA from SLC?
The flight distance from Seattle (SEA) to Salt Lake City (SLC) is 688 miles (1,107 km, 598 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to SLC?
A nonstop flight takes about 1h 58m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Seattle and Salt Lake City?
Salt Lake City is 1 hour ahead of Seattle.
What is the cheapest way to fly from SEA to SLC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–SLC that never appear on search engines, with no booking fees.