Flight Reliability
AS 1447 · Alaska Airlines
Chicago → San Diego (ORD–SAN)
72
Usually Fine
WanderNerd Reliability Score
- 72%
- Arrive within 15 minutes
- 10 min
- Average arrival delay
- 1.9%
- Cancelled
- 6 min early
- Median arrival delay
Based on 212 historical flights. Data through May 2026.
What the data says
The 3–6 PM departure wins.
AS 1447 departing between 3–6 PM arrived on time 75% of the time, versus 59% between 12–3 PM.
Wednesdays have been rough.
AS 1447 arrived on time 89% of the time on Saturdays and just 59% on Wednesdays. That gap is worth planning around.
Lagging the Alaska Airlines network.
AS 1447 arrived on time 72% of the time, versus 80% across the Alaska Airlines network.
Ticking up lately.
AS 1447 arrived on time 79% of the time over the last three months in the data, compared with 74% in the three months before that.
The breakdown
- Mon71%(31 flights)
- Tue84%(31 flights)
- Wed59%(29 flights)
- Thu66%(29 flights)
- Fri61%(31 flights)
- Sat89%(28 flights)
- Sun72%(29 flights)
- 12–3 PM59%(41 flights)
- 3–6 PM75%(167 flights)
85%
May
Nov 45% → May 85% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 45% | 29 |
| December 2025 | 59% | 29 |
| January 2026 | 74% | 31 |
| February 2026 | 89% | 28 |
| March 2026 | 79% | 29 |
| April 2026 | 72% | 29 |
| May 2026 | 85% | 27 |
- Departures on time
- 70%
- Diverted
- 0%
- Flights flown
- 208
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 212 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.