Alaska AirlinesAS
live
Direct flights from Long Beach (LGB) to Seattle (SEA): 26 nonstop departures observed each week across 2 airlines. No cancellations were recorded across the 19 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 Long Beach and Seattle. Updated 4 November 2026 at 04:41 UTC.
Today, LGB → SEA
Tue 3 Nov · local times- 07:00 AS1309Alaska Left 07:13 +13 Landed 09:51
- 10:30 WN4303Southwest Left 10:39 +9 Landed 13:25
- 15:05 AS717Alaska Left 15:09 Landed 17:56
Checked LGB board 15:48 · SEA board 20:41
LGB
Long Beach
smooth · +6
SEA
Seattle
smooth · +0
1,555 km · ~2h 30m est.
Running clean · 2 airlines · 26x weekly · nonstop
95 / 100
route health from live LGB and SEA delay boards
0 of 19 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Flight time~2h 30mestimated from route distance
Weekly departures26x2 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 19
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska AirlinesSouthwest 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
Conditions are tightest at LGB: a 38% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +7 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →
next sweep in 120s
How the Long Beach to Seattle route actually runs
Pro Flight Search records official board updates for nonstop LGB to SEA 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: Long Beach (LGB) to Seattle (SEA) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/LGB-SEA
LGB to SEA questions
Is LGB–SEA running on time right now?
Smooth skies ahead. The departure side at LGB 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 LGB–SEA?
Operators schedule morning departures around 07:02 and evening departures around 17:15 from LGB. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SEA delay card to confirm conditions when you'd arrive.
How long is the flight from LGB to SEA?
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 LGB–SEA fly?
2 carriers operate this route, around 26 flights a week between them. Compare carrier days and times in the airline list above.
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