Flight AS507
Alaska Airlines flight AS507
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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
Milwaukee (MKE) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 22% of the time, and when it is late the delay averages 46 minutes. It was cancelled 0.5% of the time.
- On-time arrivals
- 78.3%
- Less than 15 minutes late
- Cancelled
- 0.5%
- Of scheduled flights
- Average delay when late
- 46 min
- Flights arriving 15+ minutes late
- Flights tracked
- 218
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 33%
- Airline (crew, maintenance, cleaning) 26%
- Late-arriving aircraft 20%
- Extreme weather 18%
- Security 2%
Share of delay minutes airlines attributed to each cause (BTS).
Seattle (SEA) to Milwaukee (MKE)
Historically, this flight arrives 15+ minutes late 6% of the time, and when it is late the delay averages 42 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 93.6%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 42 min
- Flights arriving 15+ minutes late
- Flights tracked
- 187
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 42%
- Airline (crew, maintenance, cleaning) 30%
- Late-arriving aircraft 26%
- Security 2%
- Extreme weather 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dulles (IAD) to San Diego (SAN)
Historically, this flight arrives 15+ minutes late 24% of the time, and when it is late the delay averages 43 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 76.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 43 min
- Flights arriving 15+ minutes late
- Flights tracked
- 104
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 42%
- Late-arriving aircraft 38%
- Airline (crew, maintenance, cleaning) 19%
- Security 1%
- Extreme weather 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 72.4% | 30 |
| October 2025 | 79.3% | 30 |
| November 2025 | 77.8% | 27 |
| December 2025 | 76.2% | 42 |
| January 2026 | 76.0% | 25 |
| February 2026 | 77.8% | 18 |
| March 2026 | 76.9% | 40 |
| April 2026 | 98.2% | 56 |
| May 2026 | 84.5% | 58 |
| June 2026 | 85.0% | 60 |
| July 2026 | 83.6% | 61 |
| August 2026 | 91.9% | 62 |
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