Alaska AirlinesAS100% on time
Flights AS1367 07:40 daily · AS650 08:41 daily · AS697 10:13 daily · AS621 11:32 daily
live
Direct flights from Seattle (SEA) to San Diego (SAN): 21 nonstop departures observed each week across 3 airlines. 89% of the last 9 operated flights arrived within 15 minutes of schedule. The median arrival is 18 minutes early. No cancellations were recorded across the 9 tracked flights. The nonstop covers 1,692 km, an estimated 2 hours 40 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and San Diego. Updated 20 September 2026 at 05:22 UTC.
SEA
Seattle
busy · +18
SAN
San Diego
smooth · +2
1,692 km · ~2h 40m est.
Runs reliable · 3 airlines · 21x weekly · nonstop
89% on time
of the last 9 operated SEA → SAN flights arrived within 15 minutes
Median arrival delay is −18 min. 0 of 9 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−18 minacross the last 9 operated legs
Flight time~2h 40mestimated from route distance
Weekly departures21x3 direct airlines on the leg
The week
scheduled departures · origin local time06121824
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 daysDelta Air LinesDL
Flights DL2508 07:15 daily · DL2533 09:45 daily · DL2572 12:28 daily · DL2613 15:14 Mo Tu We Th Fr Su
Southwest AirlinesWN
Flights WN2623 varies daily · WN3538 varies Mo Tu We Th Fr Sa
History
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at SAN: 41% odds of a 15+ minute delay and around +8 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Seattle to San Diego route actually runs
Pro Flight Search records official board updates for nonstop SEA to SAN 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 San Diego (SAN) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SEA-SAN
SEA to SAN questions
Is SEA–SAN 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–SAN?
Operators schedule morning departures around 07:15 and evening departures around 20:49 from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SAN delay card to confirm conditions when you'd arrive.
How long is the flight from SEA to SAN?
Great-circle distance is 1,692 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 149–175 min gate-to-gate on this route.
How often does SEA–SAN fly?
3 carriers operate this route, around 101 flights a week between them. Compare carrier days and times in the airline list above.
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