Flight AS1637
Alaska Airlines flight AS1637
Looking for AS1637 in the air…
Las Vegas (LAS) to Anchorage (ANC)
Historically, this flight arrives 15+ minutes late 32% of the time, and when it is late the delay averages 59 minutes. It was cancelled 2.9% of the time.
- On-time arrivals
- 68.2%
- Less than 15 minutes late
- Cancelled
- 2.9%
- Of scheduled flights
- Average delay when late
- 59 min
- Flights arriving 15+ minutes late
- Flights tracked
- 69
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 60%
- Airline (crew, maintenance, cleaning) 16%
- Extreme weather 14%
- Air traffic control & airport 10%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Jun 2026
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| June 2026 | 65.0% | 20 |
| July 2026 | 76.7% | 31 |
| August 2026 | 56.2% | 18 |
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