Is SEA–LGA running on time right now?
Mostly on schedule. The departure side at SEA is the weaker end, route health score 78/100. The airports section above carries the live status and delay window at both ends.
live
Direct flights from Seattle (SEA) to New York (LGA) run nonstop between the two airports. The nonstop covers 3,872 km, an estimated 5 hours 28 minutes in the air.
SEA
Seattle
heavy · +33
LGA
New York
smooth · +0
3,872 km · ~5h 28m est.
Running clean · 0 airlines · nonstop
78 / 100
route health from live SEA and LGA delay boards
Flight time~5h 28mestimated from route distance
Airports right now
live boardsWeather lens
Current conditions put the pressure at LGA: 39% odds of a 15+ minute delay and around +10 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 New York route actually runs
Pro Flight Search records official board updates for nonstop SEA to LGA 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 New York (LGA) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SEA-LGA
SEA to LGA questions
How long is the flight from SEA to LGA?
Great-circle distance is 3,872 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 303–362 min gate-to-gate on this route.
What does the route health score measure?
A blend of departure-side delay at SEA and arrival-side delay at LGA, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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