Flight AS337
Alaska Airlines flight AS337
Looking for AS337 in the air…
Chicago (ORD) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 51% of the time, and when it is late the delay averages 77 minutes. It was cancelled 6.5% of the time.
- On-time arrivals
- 49.4%
- Less than 15 minutes late
- Cancelled
- 6.5%
- Of scheduled flights
- Average delay when late
- 77 min
- Flights arriving 15+ minutes late
- Flights tracked
- 186
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 62%
- Air traffic control & airport 24%
- Airline (crew, maintenance, cleaning) 13%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Eugene (EUG) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 3% of the time, and when it is late the delay averages 63 minutes. It was cancelled 2.9% of the time.
- On-time arrivals
- 97.0%
- Less than 15 minutes late
- Cancelled
- 2.9%
- Of scheduled flights
- Average delay when late
- 63 min
- Flights arriving 15+ minutes late
- Flights tracked
- 34
- 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).
Phoenix (PHX) to Anchorage (ANC)
Historically, this flight arrives 15+ minutes late 22% of the time, and when it is late the delay averages 69 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 78.1%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 69 min
- Flights arriving 15+ minutes late
- Flights tracked
- 32
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 59%
- Air traffic control & airport 35%
- Extreme weather 4%
- Airline (crew, maintenance, cleaning) 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
St Louis (STL) to Portland (PDX)
Historically, this flight arrives 15+ minutes late 7% of the time, and when it is late the delay averages 62 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 92.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 62 min
- Flights arriving 15+ minutes late
- Flights tracked
- 28
- Scheduled flights in the period
What caused the delays
- Extreme weather 63%
- Air traffic control & airport 37%
- Airline (crew, maintenance, cleaning) 0%
- Late-arriving aircraft 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Phoenix (PHX) to Portland (PDX)
Only 12 flights 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
- 12
- Scheduled flights in the period
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 44.8% | 30 |
| October 2025 | 53.6% | 29 |
| November 2025 | 50.0% | 20 |
| December 2025 | 48.0% | 28 |
| January 2026 | 50.0% | 6 |
| February 2026 | 82.4% | 17 |
| March 2026 | 85.2% | 28 |
| April 2026 | 96.2% | 26 |
| May 2026 | 92.3% | 26 |
| June 2026 | 69.2% | 27 |
| July 2026 | 57.7% | 27 |
| August 2026 | 40.7% | 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