Flight Reliability
AS 1470 · Alaska Airlines
Chicago → San Diego (ORD–SAN)
73
Usually Fine
WanderNerd Reliability Score
- 71%
- Arrive within 15 minutes
- 10 min
- Average arrival delay
- 1.4%
- Cancelled
- 1 min early
- Median arrival delay
Based on 217 historical flights. Data through May 2026.
What the data says
The 6–9 AM departure wins.
AS 1470 departing between 6–9 AM arrived on time 75% of the time, versus 64% between 9 AM–12 PM.
Friday is doing you no favors.
AS 1470 arrived on time 81% of the time on Thursdays and just 65% on Fridays. That gap is worth planning around.
Lagging the Alaska Airlines network.
AS 1470 arrived on time 71% of the time, versus 80% across the Alaska Airlines network.
Trending in the right direction.
AS 1470 arrived on time 81% of the time over the last three months in the data, compared with 71% in the three months before that.
The breakdown
- Mon68%(31 flights)
- Tue71%(31 flights)
- Wed66%(29 flights)
- Thu81%(31 flights)
- Fri65%(31 flights)
- Sat80%(30 flights)
- Sun68%(31 flights)
- 6–9 AM75%(134 flights)
- 9 AM–12 PM64%(80 flights)
80%
May
Nov 41% → May 80% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 41% | 29 |
| December 2025 | 55% | 29 |
| January 2026 | 68% | 31 |
| February 2026 | 89% | 28 |
| March 2026 | 77% | 31 |
| April 2026 | 87% | 30 |
| May 2026 | 80% | 30 |
- Departures on time
- 73%
- Diverted
- 0%
- Flights flown
- 214
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 217 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.