Flight AS31
Alaska Airlines flight AS31
Looking for AS31 in the air…
New York (JFK) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 28% of the time, and when it is late the delay averages 76 minutes. It was cancelled 4.7% of the time.
- On-time arrivals
- 71.9%
- Less than 15 minutes late
- Cancelled
- 4.7%
- Of scheduled flights
- Average delay when late
- 76 min
- Flights arriving 15+ minutes late
- Flights tracked
- 363
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 31%
- Airline (crew, maintenance, cleaning) 26%
- Late-arriving aircraft 22%
- Extreme weather 17%
- Security 4%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 86.7% | 30 |
| October 2025 | 89.3% | 31 |
| November 2025 | 58.3% | 29 |
| December 2025 | 40.0% | 31 |
| January 2026 | 76.7% | 31 |
| February 2026 | 61.5% | 28 |
| March 2026 | 48.4% | 31 |
| April 2026 | 80.0% | 30 |
| May 2026 | 86.7% | 30 |
| June 2026 | 89.7% | 30 |
| July 2026 | 75.9% | 31 |
| August 2026 | 67.9% | 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