Flight AS540
Alaska Airlines flight AS540
Looking for AS540 in the air…
Portland (PDX) to Austin (AUS)
Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 54 minutes. It was cancelled 1.5% of the time.
- On-time arrivals
- 83.0%
- Less than 15 minutes late
- Cancelled
- 1.5%
- Of scheduled flights
- Average delay when late
- 54 min
- Flights arriving 15+ minutes late
- Flights tracked
- 328
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 46%
- Airline (crew, maintenance, cleaning) 30%
- Late-arriving aircraft 22%
- Extreme weather 2%
- 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 | 88.9% | 28 |
| November 2025 | 80.0% | 30 |
| December 2025 | 82.8% | 29 |
| January 2026 | 82.8% | 30 |
| February 2026 | 85.7% | 28 |
| March 2026 | 93.3% | 30 |
| April 2026 | 86.7% | 30 |
| May 2026 | 90.3% | 31 |
| June 2026 | 86.7% | 30 |
| July 2026 | 71.0% | 31 |
| August 2026 | 64.3% | 31 |
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