Flight AS235
Alaska Airlines flight AS235
Looking for AS235 in the air…
Alerts at this flight's airports
San Francisco (SFO) to Portland (PDX)
Historically, this flight arrives 15+ minutes late 41% of the time, and when it is late the delay averages 53 minutes. It was cancelled 0.3% of the time.
- On-time arrivals
- 58.7%
- 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 72%
- Airline (crew, maintenance, cleaning) 18%
- Air traffic control & airport 10%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Seattle (SEA) to Chicago (ORD)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 0.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 140 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 100%
- Late-arriving aircraft 0%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Oct 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| October 2025 | 71.4% | 7 |
| November 2025 | 77.8% | 27 |
| December 2025 | 55.2% | 29 |
| January 2026 | 80.0% | 30 |
| February 2026 | 92.0% | 25 |
| March 2026 | 92.9% | 29 |
| April 2026 | 50.0% | 28 |
| May 2026 | 32.3% | 31 |
| June 2026 | 44.4% | 27 |
| July 2026 | 33.3% | 27 |
| August 2026 | 28.6% | 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