Flight AS664
Alaska Airlines flight AS664
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Alerts at this flight's airports
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Watch Ground Delay Program SAN
Ground Delay Program at San Diego International Airport (SAN): Average 37 minutes, up to 1 hour and 11 minutes
Reason: airport volume
Airport status
Seattle (SEA) to Ontario (ONT)
Historically, this flight arrives 15+ minutes late 22% of the time, and when it is late the delay averages 54 minutes. It was cancelled 1.6% of the time.
- On-time arrivals
- 77.6%
- Less than 15 minutes late
- Cancelled
- 1.6%
- Of scheduled flights
- Average delay when late
- 54 min
- Flights arriving 15+ minutes late
- Flights tracked
- 127
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 51%
- Late-arriving aircraft 32%
- Air traffic control & airport 17%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Salt Lake City (SLC) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 18% of the time, and when it is late the delay averages 81 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 81.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 81 min
- Flights arriving 15+ minutes late
- Flights tracked
- 83
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 57%
- Late-arriving aircraft 22%
- Air traffic control & airport 21%
- Security 0%
- Extreme weather 0%
Share of delay minutes airlines attributed to each cause (BTS).
Seattle (SEA) to Missoula (MSO)
Historically, this flight arrives 15+ minutes late 15% of the time, and when it is late the delay averages 50 minutes. It was cancelled 2.9% of the time.
- On-time arrivals
- 84.8%
- Less than 15 minutes late
- Cancelled
- 2.9%
- Of scheduled flights
- Average delay when late
- 50 min
- Flights arriving 15+ minutes late
- Flights tracked
- 34
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 86%
- Airline (crew, maintenance, cleaning) 13%
- Air traffic control & airport 1%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Seattle (SEA) to San Diego (SAN)
Only 16 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
- 16
- Scheduled flights in the period
Show as table
| Month | On time | Flights |
|---|---|---|
| October 2025 | 83.3% | 6 |
| November 2025 | 75.9% | 30 |
| December 2025 | 60.0% | 15 |
| January 2026 | 74.2% | 31 |
| February 2026 | 78.6% | 28 |
| March 2026 | 93.1% | 31 |
| April 2026 | 85.0% | 20 |
| May 2026 | 100.0% | 11 |
| June 2026 | 96.2% | 26 |
| July 2026 | 80.6% | 31 |
| August 2026 | 74.2% | 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