Flight AS440
Alaska Airlines flight AS440
Looking for AS440 in the air…
Miami (MIA) to Portland (PDX)
Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 99 minutes. It was cancelled 1.1% of the time.
- On-time arrivals
- 82.6%
- Less than 15 minutes late
- Cancelled
- 1.1%
- Of scheduled flights
- Average delay when late
- 99 min
- Flights arriving 15+ minutes late
- Flights tracked
- 95
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 64%
- Airline (crew, maintenance, cleaning) 18%
- Air traffic control & airport 16%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Milwaukee (MKE) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 8% of the time, and when it is late the delay averages 59 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 91.6%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 59 min
- Flights arriving 15+ minutes late
- Flights tracked
- 83
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 40%
- Extreme weather 31%
- Air traffic control & airport 17%
- Security 12%
- Late-arriving aircraft 0%
Share of delay minutes airlines attributed to each cause (BTS).
Portland (PDX) to Palm Springs (PSP)
Historically, this flight arrives 15+ minutes late 8% of the time, and when it is late the delay averages 47 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 92.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 47 min
- Flights arriving 15+ minutes late
- Flights tracked
- 52
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 90%
- Airline (crew, maintenance, cleaning) 10%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Seattle (SEA) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 15% of the time, and when it is late the delay averages 26 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 85.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 26 min
- Flights arriving 15+ minutes late
- Flights tracked
- 28
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 76%
- Airline (crew, maintenance, cleaning) 24%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Seattle (SEA) to Burbank (BUR)
Only 18 flights on record, which is too few for reliable odds.
- On-time arrivals
- 93.3%
- Less than 15 minutes late
- Cancelled
- 11.1%
- Of scheduled flights
- Average delay when late
- 29 min
- Flights arriving 15+ minutes late
- Flights tracked
- 18
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 100%
- Airline (crew, maintenance, cleaning) 0%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| October 2025 | 93.3% | 18 |
| November 2025 | 77.8% | 9 |
| December 2025 | 93.3% | 31 |
| January 2026 | 96.7% | 31 |
| February 2026 | 69.2% | 26 |
| March 2026 | 78.6% | 29 |
| April 2026 | 95.2% | 21 |
| May 2026 | 83.3% | 19 |
| June 2026 | 90.0% | 30 |
| July 2026 | 90.3% | 31 |
| August 2026 | 93.5% | 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