Alaska Airlines SEA to RDU on-time performance
Alaska Airlines nonstop flights from Seattle to Raleigh/Durham · Aug 2025 – Jul 2026
On-time arrivals
82%
arrived < 15 min late
Cancelled
0.7%
4 flights
Avg arrival delay
8 min
38 min when late
Rank on route
#1 of 2
route average 80% on time
Key facts
- Alaska Airlines flights on SEA to RDU arrived on time 82% of the time in Aug 2025 – Jul 2026.
- 0.7% were cancelled, and 2% arrived an hour or more late.
- That ranks #1 of 2 airlines on this route, which averaged 80% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (33%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)33%
- Late-arriving aircraft33%
- Air traffic control & airport congestion31%
- Extreme weather3%
- Security0%
Other airlines on SEA to RDU
- Delta Air Lines77% on time · 13 min avg delay
Full SEA to RDU comparison →
Alaska Airlines on-time record across all routes →
554 Alaska Airlines flights tracked on this route; 4 cancelled, 2 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.