Flight AS721
Alaska Airlines flight AS721
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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
Portland (PDX) to San Diego (SAN)
Historically, this flight arrives 15+ minutes late 22% of the time, and when it is late the delay averages 46 minutes. It was cancelled 1.6% of the time.
- On-time arrivals
- 77.7%
- Less than 15 minutes late
- Cancelled
- 1.6%
- Of scheduled flights
- Average delay when late
- 46 min
- Flights arriving 15+ minutes late
- Flights tracked
- 123
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 45%
- Airline (crew, maintenance, cleaning) 38%
- Late-arriving aircraft 17%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Portland (PDX) to Reno (RNO)
Historically, this flight arrives 15+ minutes late 9% of the time, and when it is late the delay averages 71 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 91.4%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 71 min
- Flights arriving 15+ minutes late
- Flights tracked
- 35
- 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 Everett (PAE)
Only 1 flight 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
- 1
- Scheduled flights in the period
Show as table
| Month | On time | Flights |
|---|---|---|
| October 2025 | 100.0% | 4 |
| November 2025 | 69.6% | 23 |
| December 2025 | 70.0% | 20 |
| January 2026 | 89.7% | 29 |
| February 2026 | 85.7% | 21 |
| March 2026 | 85.0% | 20 |
| April 2026 | 90.0% | 20 |
| May 2026 | 100.0% | 3 |
| June 2026 | 100.0% | 1 |
| July 2026 | 100.0% | 2 |
| August 2026 | 60.0% | 16 |
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