Flight Reliability
AS 919 · Alaska Airlines
Seattle → Raleigh–Durham (SEA–RDU)
51
A Little Dicey
WanderNerd Reliability Score
- 57%
- Arrive within 15 minutes
- 15 min
- Average arrival delay
- 2.8%
- Cancelled
- 11 min
- Median arrival delay
Based on 106 historical flights. Data through May 2026.
What the data says
Mondays have been rough.
AS 919 arrived on time 91% of the time on Wednesdays and just 39% on Mondays. That gap is worth planning around.
Well behind the SEA–RDU route.
AS 919 arrived on time 57% of the time, versus 78% across the SEA–RDU route.
Well behind the Alaska Airlines network.
AS 919 arrived on time 57% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon39%(18 flights)
- Tue58%(12 flights)
- Wed91%(11 flights)
- Thu59%(17 flights)
- Fri67%(18 flights)
- Sat50%(10 flights)
- Sun47%(17 flights)
65%
Sep
Jun 60% → Sep 65% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 60% | 30 |
| July 2025 | 53% | 30 |
| August 2025 | 50% | 24 |
| September 2025 | 65% | 17 |
- Departures on time
- 60%
- Diverted
- 0%
- Flights flown
- 103
- Months covered
- 5
Same route, other flights
Keep nerding
Based on 106 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.