Flight AS525
Alaska Airlines flight AS525
Looking for AS525 in the air…
Alerts at this flight's airports
San Francisco (SFO) to Portland (PDX)
Historically, this flight arrives 15+ minutes late 21% of the time, and when it is late the delay averages 53 minutes. It was cancelled 0.3% of the time.
- On-time arrivals
- 78.7%
- Less than 15 minutes late
- Cancelled
- 0.3%
- Of scheduled flights
- Average delay when late
- 53 min
- Flights arriving 15+ minutes late
- Flights tracked
- 287
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 87%
- Airline (crew, maintenance, cleaning) 7%
- Air traffic control & airport 6%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Denver (DEN) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 112 minutes. It was cancelled 4.1% of the time.
- On-time arrivals
- 80.9%
- Less than 15 minutes late
- Cancelled
- 4.1%
- Of scheduled flights
- Average delay when late
- 112 min
- Flights arriving 15+ minutes late
- Flights tracked
- 49
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 83%
- Air traffic control & airport 17%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 100.0% | 30 |
| October 2025 | 86.2% | 30 |
| November 2025 | 88.9% | 28 |
| December 2025 | 63.6% | 22 |
| January 2026 | 93.3% | 30 |
| February 2026 | 89.3% | 28 |
| March 2026 | 93.1% | 29 |
| April 2026 | 73.9% | 23 |
| May 2026 | 69.2% | 26 |
| June 2026 | 62.1% | 30 |
| July 2026 | 70.0% | 30 |
| August 2026 | 53.3% | 30 |
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