Southwest AirlinesWN17% on time
Flights WN663 07:00 Mo Th Fr · WN3533 12:00 Tu We Su · WN451 12:55 Mo Th Fr
live
Direct flights from Seattle (SEA) to Long Beach (LGB): 6 nonstop departures observed each week across 1 airline. 17% of the last 6 operated flights arrived within 15 minutes of schedule. The median arrival is 43 minutes late. No cancellations were recorded across the 6 tracked flights. The nonstop covers 1,555 km, an estimated 2 hours 30 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Long Beach. Updated 17 August 2026 at 11:23 UTC.
SEA
Seattle
smooth · +8
LGB
Long Beach
busy · +22
1,555 km · ~2h 30m est.
Runs rough · 1 airline · 6x weekly · nonstop
17% on time
of the last 6 operated SEA → LGB flights arrived within 15 minutes
Median arrival delay is +43 min. 0 of 6 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Search live fares for this route →Median arrival+43 minacross the last 6 operated legs
Flight time~2h 30mestimated from route distance
Weekly departures6x1 direct airline on the leg
Current nonstop fares
SEA → LGB · one way · economy · 1 adult
TodayChecking…Direct airline fares
TomorrowChecking…Direct airline fares
In one weekChecking…Direct airline fares
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Southwest 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 daysHistory
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 LGB: 40% odds of a 15+ minute delay and around +6 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 Long Beach route actually runs
Pro Flight Search tracks every published board update for nonstop SEA to LGB flights: 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. Fares link straight to the operating airline with no markups.
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 Long Beach (LGB) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SEA-LGB
SEA to LGB questions
Is SEA–LGB running on time right now?
Mostly on schedule. The arrival side at LGB is the weaker end, route health score 79/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on SEA–LGB?
Operators schedule morning departures around 07:00 from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the LGB delay card to confirm conditions when you'd arrive.
How long is the flight from SEA to LGB?
Great-circle distance is 1,555 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 140–163 min gate-to-gate on this route.
How often does SEA–LGB fly?
Southwest Airlines runs the route with about 9 flights a week (sun, mon, tue, wed, thu, fri). Since one carrier owns the route, a single disruption tends to ripple through the day.
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