Flight AS143
Alaska Airlines flight AS143
Looking for AS143 in the air…
Anchorage (ANC) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 25% of the time, and when it is late the delay averages 64 minutes. It was cancelled 1.2% of the time.
- On-time arrivals
- 75.4%
- Less than 15 minutes late
- Cancelled
- 1.2%
- Of scheduled flights
- Average delay when late
- 64 min
- Flights arriving 15+ minutes late
- Flights tracked
- 170
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 45%
- Late-arriving aircraft 28%
- Air traffic control & airport 25%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Seattle (SEA) to Honolulu, Oahu (HNL)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
Sep 2025
Apr 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 65.4% | 26 |
| October 2025 | 69.0% | 30 |
| November 2025 | 72.7% | 23 |
| December 2025 | 66.7% | 27 |
| January 2026 | 80.0% | 25 |
| February 2026 | 95.8% | 24 |
| March 2026 | 85.7% | 15 |
| April 2026 | 100.0% | 1 |
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