SEA → SLCSeattle to Salt Lake City

live

Direct flights from Seattle (SEA) to Salt Lake City (SLC): 14 nonstop departures observed each week across 2 airlines. 100% of the last 6 operated flights arrived within 15 minutes of schedule. The median arrival is 12 minutes early. No cancellations were recorded across the 6 tracked flights. The nonstop covers 1,107 km, an estimated 1 hour 55 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Salt Lake City. Updated 23 October 2026 at 19:22 UTC.

Today, SEA → SLC

Fri 23 Oct · local times
  1. 05:30 DL1128Delta Air Lines Departed Landed 08:17 −18
  2. 07:15 DL2858Delta Air Lines Departed Landed 10:02 −30
  3. 07:18 AS430Alaska Departed Landed 10:10 −23
  4. 09:42 DL1016Delta Air Lines Departed SLC est. 12:44In the air · sched 12:50
  5. 10:54 AS733Alaska Departed SLC est. 13:54In the air · sched 14:06
  6. 11:05 DL1265Delta Air Lines Departed SLC est. 14:14In the air · sched 14:15
  7. 13:30 DL1120Delta Air Lines On scheduleGate B1 ·
  8. 14:42 AS663Alaska On scheduleGate C20 ·
  9. 16:59 AS3268Alaska On scheduleGate C2G ·
  10. 17:55 DL1165Delta Air Lines On scheduleGate A1 ·
  11. 19:55 DL1239Delta Air Lines On scheduleGate A1 ·
  12. 20:48 AS669Alaska On scheduleGate D6 ·

Checked SEA board 12:22 · SLC board 10:48

SEA Seattle smooth · +6
SLC Salt Lake City smooth · +0
1,107 km · ~1h 55m est.
dep bank 05:30–20:4814x weekly
Runs reliable · 2 airlines · 14x weekly · nonstop
100% on time

of the last 6 operated SEA → SLC flights arrived within 15 minutes

Median arrival delay is −12 min. 0 of 6 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−12 minacross the last 6 operated legs
Flight time~1h 55mestimated from route distance
Weekly departures14x2 direct airlines on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska AirlinesDelta Air Lines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Alaska AirlinesAS

Flights AS430 07:18 Mo Th Fr Su · AS733 10:54 daily · AS663 14:42 daily · AS3268 16:59 daily

History

operated legs · board outcomes
10-23AS430arrived−23
10-23AS733arrived−12
10-23DL1016arrived−6
10-23DL1128arrived−18
10-23DL1265arrived−1
10-23DL2858arrived−30

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
SEASeattle +6 min smooth 🌤 mostly cloudy · ENE 5 kt Full SEA delay board →
SLCSalt Lake City +0 min smooth 🌤 mostly cloudy · SSE 23 kt Full SLC delay board →

Weather lens

Current conditions put the pressure at SEA and SLC: 33% odds of a 15+ minute delay and around +2 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Seattle to Salt Lake City route actually runs

Pro Flight Search records official board updates for nonstop SEA to SLC flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Seattle (SEA) to Salt Lake City (SLC) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/SEA-SLC
How we measure this →

SEA to SLC questions

Is SEA–SLC running on time right now?

Smooth skies ahead. The departure side at SEA is the weaker end, route health score 95/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on SEA–SLC?

Operators schedule morning departures around 05:30 and evening departures around 17:55 from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SLC delay card to confirm conditions when you'd arrive.

How long is the flight from SEA to SLC?

Great-circle distance is 1,107 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 108–125 min gate-to-gate on this route.

How often does SEA–SLC fly?

2 carriers operate this route, around 78 flights a week between them. Compare carrier days and times in the airline list above.