SEA → SLCSeattle to Salt Lake City

live

Direct flights from Seattle (SEA) to Salt Lake City (SLC): 15 nonstop departures observed each week across 3 airlines. 100% of the last 7 operated flights arrived within 15 minutes of schedule. The median arrival is 16 minutes early. No cancellations were recorded across the 7 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 6 September 2026 at 21:48 UTC.

SEA Seattle busy · +18
SLC Salt Lake City smooth · +0
1,107 km · ~1h 55m est.
dep bank 05:45–19:5015x weekly
Runs reliable · 3 airlines · 15x weekly · nonstop
100% on time

of the last 7 operated SEA → SLC flights arrived within 15 minutes

Median arrival delay is −16 min. 0 of 7 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−16 minacross the last 7 operated legs
Flight time~1h 55mestimated from route distance
Weekly departures15x3 direct airlines on the leg

The week

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

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 AS661 09:08 daily · AS733 11:29 daily · AS3282 14:15 Mo Tu We Th Su · AS669 17:01 daily

Delta Air LinesDL100% on time

Flights DL1128 05:45 daily · DL2858 07:15 daily · DL1016 09:40 daily · DL1265 11:05 daily

Southwest AirlinesWN

Flights WN879 12:30 Sa

History

operated legs · board outcomes
09-06AS661arrived−21
09-06AS733arrived−7
09-06DL1016arrived−24
09-06DL1120arrived−4
09-06DL1128arrived−23
09-06DL1265arrived−6
09-06DL2858arrived−16

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 +18 min busy Full SEA delay board →
SLCSalt Lake City +0 min smooth Full SLC delay board →

Weather lens

Current conditions put the pressure at SEA and SLC: 35% odds of a 15+ minute delay, 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 88/100. 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 05:45 and evening departures around 17:01 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?

3 carriers operate this route, around 80 flights a week between them. Compare carrier days and times in the airline list above.