SEA → SLC: cancellations & delays
Over Jan 2023 - Apr 2026, 0.7% of Seattle–Tacoma International Airport (SEA) to Salt Lake City International Airport (SLC) flights were cancelled and 16.5% arrived at least 15 minutes late, across 13,023 flights, flown by DL, AS, OO, F9. Cancellations peak in March.
Check today's live SEA departures →Airport pages: Seattle–Tacoma International Airport (SEA) · Salt Lake City International Airport (SLC)
Rates are historical averages from U.S. DOT (BTS) on-time records; a specific flight's live estimate can differ with weather and the day's disruptions.