Flight Reliability
AS 920 · Alaska Airlines
Raleigh–Durham → Seattle (RDU–SEA)85% of its flights flew this route. The rest (SEA–PSP, HNL–SEA) are included in these numbers.
76
Usually Fine
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 1 min early
- Average arrival delay
- 2.0%
- Cancelled
- 8 min early
- Median arrival delay
Based on 147 historical flights. Data through May 2026.
What the data says
Thursdays have been rough.
AS 920 arrived on time 86% of the time on Mondays and just 67% on Thursdays. That gap is worth planning around.
The breakdown
- Mon86%(21 flights)
- Tue82%(22 flights)
- Wed80%(20 flights)
- Thu67%(21 flights)
- Fri80%(20 flights)
- Sat75%(20 flights)
- Sun84%(19 flights)
- 6–9 AM80%(142 flights)
- 12–3 PM—(1 flights)
92%
Oct
Jun 67% → Oct 92% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 67% | 30 |
| July 2025 | 71% | 31 |
| August 2025 | 79% | 28 |
| September 2025 | 93% | 29 |
| October 2025 | 92% | 24 |
- Departures on time
- 83%
- Diverted
- 0.7%
- Flights flown
- 143
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 147 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.