Alaska AirlinesAS
Flights AS572 08:00 daily
live
Direct flights from Seattle (SEA) to Raleigh/Durham (RDU): 14 nonstop departures observed each week across 2 airlines. 100% of the last 8 operated flights arrived within 15 minutes of schedule. The median arrival is 17 minutes early. No cancellations were recorded across the 8 tracked flights. The nonstop covers 3,780 km, an estimated 5 hours 21 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Raleigh/Durham. Updated 19 October 2026 at 00:10 UTC.
Today, SEA → RDU
Sun 18 Oct · local times- 08:00 AS572Alaska Departed Landed 15:51 −28
- 15:55 DL489Delta Air Lines Departed RDU est. 23:49In the air · sched 23:58
Checked SEA board 17:00 · RDU board 20:10
SEA
Seattle
heavy · +43
RDU
Raleigh/Durham
smooth · +0
3,780 km · ~5h 21m est.
Runs reliable · 2 airlines · 14x weekly · nonstop
100% on time
of the last 8 operated SEA → RDU flights arrived within 15 minutes
Median arrival delay is −17 min. 0 of 8 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−17 minacross the last 8 operated legs
Flight time~5h 21mestimated from route distance
Weekly departures14x2 direct airlines on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska AirlinesDelta Air Lines
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 DL489 15:55 daily
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 SEA and RDU: 38% odds of a 15+ minute delay and around +7 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 Raleigh/Durham route actually runs
Pro Flight Search records official board updates for nonstop SEA to RDU 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 Raleigh/Durham (RDU) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SEA-RDU
SEA to RDU questions
Is SEA–RDU running on time right now?
Mostly on schedule. The departure side at SEA is the weaker end, route health score 71/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on SEA–RDU?
Operators schedule morning departures around 08:00 from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the RDU delay card to confirm conditions when you'd arrive.
How long is the flight from SEA to RDU?
Great-circle distance is 3,780 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 297–354 min gate-to-gate on this route.
How often does SEA–RDU fly?
2 carriers operate this route, around 14 flights a week between them. Compare carrier days and times in the airline list above.
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