Flight AS1478
Alaska Airlines flight AS1478
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Alerts at this flight's airports
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Watch Ground Delay Program SAN
Ground Delay Program at San Diego International Airport (SAN): Average 37 minutes, up to 1 hour and 11 minutes
Reason: airport volume
Airport status
San Diego (SAN) to Chicago (ORD)
Historically, this flight arrives 15+ minutes late 43% of the time, and when it is late the delay averages 59 minutes. It was cancelled 3.2% of the time.
- On-time arrivals
- 56.6%
- Less than 15 minutes late
- Cancelled
- 3.2%
- Of scheduled flights
- Average delay when late
- 59 min
- Flights arriving 15+ minutes late
- Flights tracked
- 216
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 49%
- Late-arriving aircraft 25%
- Airline (crew, maintenance, cleaning) 21%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Seattle (SEA) to Anchorage (ANC)
Only 11 flights on record, which is too few for reliable odds.
- On-time arrivals
- 45.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 53 min
- Flights arriving 15+ minutes late
- Flights tracked
- 11
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 57%
- Airline (crew, maintenance, cleaning) 30%
- Air traffic control & airport 8%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| October 2025 | 66.7% | 6 |
| November 2025 | 69.2% | 29 |
| December 2025 | 39.3% | 29 |
| January 2026 | 100.0% | 6 |
| March 2026 | 50.0% | 22 |
| April 2026 | 76.0% | 27 |
| May 2026 | 72.4% | 30 |
| June 2026 | 56.5% | 24 |
| July 2026 | 33.3% | 26 |
| August 2026 | 37.0% | 28 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data