RDU → SEARaleigh/Durham to Seattle

live

Direct flights from Raleigh/Durham (RDU) to Seattle (SEA): 14 nonstop departures observed each week across 2 airlines. 70% of the last 10 operated flights arrived within 15 minutes of schedule. The median arrival is 9 minutes late. No cancellations were recorded across the 10 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 10 September 2026 at 07:23 UTC.

RDU Raleigh/Durham busy · +22
SEA Seattle smooth · +0
3,780 km · ~5h 21m est.
dep bank 06:33–19:1314x weekly
Runs mixed · 2 airlines · 14x weekly · nonstop
70% on time

of the last 10 operated RDU → SEA flights arrived within 15 minutes

Median arrival delay is +9 min. 0 of 10 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+9 minacross the last 10 operated legs
Flight time~5h 21mestimated from route distance
Weekly departures14x2 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 10

The week

scheduled departures · origin local time
06121824
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 days
Alaska AirlinesAS50% on time

Flights AS670 07:02 daily · AS651 19:13 Mo Th Fr Su

Delta Air LinesDL

Flights DL354 06:33 daily

History

operated legs · board outcomes
09-09AS670departed+53
09-09DL354departed+2
09-08AS670dep +10 → arr−24
09-08DL354dep +7 → arr−26
09-07AS651departed+37
09-07AS670departed+64
09-07DL354departed+6
09-06AS651departed+13
09-06AS670departed+9
09-06DL354departed+9

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
RDURaleigh/Durham +22 min busy 🌤 few clouds · SSW 7 kt Full RDU delay board →
SEASeattle +0 min smooth 🌤 mostly cloudy · N 7 kt Full SEA delay board →

Weather lens

Current conditions put the pressure at RDU: 39% 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 →

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
https://proflightsearch.com/search-flights/RDU-SEA
How we measure this →

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 85/100. 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 06:33 and evening departures around 19:13 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 18 flights a week between them. Compare carrier days and times in the airline list above.