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 5 operated flights arrived within 15 minutes of schedule. The median arrival is 15 minutes early. No cancellations were recorded across the 5 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 21 October 2026 at 08:22 UTC.

Today, SEA → SLC

Wed 21 Oct · local times
  1. 05:30 DL1128Delta Air Lines On scheduleGate A4 ·
  2. 07:15 DL2858Delta Air Lines On scheduleGate A9 ·
  3. 09:15 DL9979Delta Air Lines On scheduleGate B1 ·
  4. 09:42 DL1016Delta Air Lines On scheduleGate A14 ·
  5. 10:54 AS733Alaska On scheduleGate N9 ·
  6. 11:05 DL1265Delta Air Lines On scheduleGate A2 ·
  7. 13:30 DL1120Delta Air Lines On scheduleGate A11 ·
  8. 14:42 AS663Alaska Sched 14:42Departure not confirmed by the board ·
  9. 16:59 AS3268Alaska Sched 16:59Departure not confirmed by the board ·
  10. 17:55 DL1165Delta Air Lines Sched 17:55Departure not confirmed by the board ·
  11. 20:48 AS669Alaska Sched 20:48Departure not confirmed by the board ·

Checked SEA board 01:22 · SLC board 00:10

SEA Seattle smooth · +2
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 5 operated SEA → SLC flights arrived within 15 minutes

Median arrival delay is −15 min. 0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−15 minacross the last 5 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
10-20AS3268arrived−7
10-20AS663arrived−15
10-20AS669arrived−15
10-20DL1120arrived−10
10-20DL1165arrived−35

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 +2 min smooth 🌤 clear · N 0 kt Full SEA delay board →
SLCSalt Lake City +0 min smooth 🌤 scattered clouds · SSE 8 kt Full SLC delay board →

Weather lens

Current conditions put the pressure at SEA and SLC: 34% 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. Both endpoints currently score the same, route health score 100/100. 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.