Alaska AirlinesAS
live
Direct flights from Raleigh/Durham (RDU) to Seattle (SEA): 19 nonstop departures observed each week across 2 airlines. No cancellations were recorded across the 13 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 Raleigh/Durham and Seattle. Updated 6 November 2026 at 01:28 UTC.
Today, RDU → SEA
Thu 5 Nov · local times- 06:30 DL354Delta Air Lines Left 06:46 +16 Landed 09:27
- 18:52 AS572Alaska Est. 18:52Departure not confirmed by the board SEA est. 21:33sched 21:54
Checked RDU board 15:03 · SEA board 17:28
RDU
Raleigh/Durham
smooth · +11
SEA
Seattle
smooth · +0
3,780 km · ~5h 21m est.
Running clean · 2 airlines · 19x weekly · nonstop
92 / 100
route health from live RDU and SEA delay boards
0 of 13 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Flight time~5h 21mestimated from route distance
Weekly departures19x2 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 13
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 DL354 06:30 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
Conditions are tightest at RDU and SEA: a 34% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +4 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 Raleigh/Durham to Seattle route actually runs
Pro Flight Search records official board updates for nonstop RDU 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: Raleigh/Durham (RDU) to Seattle (SEA) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/RDU-SEA
RDU to SEA questions
Is RDU–SEA running on time right now?
Smooth skies ahead. The departure side at RDU is the weaker end, route health score 92/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on RDU–SEA?
Operators schedule morning departures around 06:30 and evening departures around 18:44 from RDU. 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 RDU to SEA?
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 RDU–SEA fly?
2 carriers operate this route, around 19 flights a week between them. Compare carrier days and times in the airline list above.
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