Flight AS299
Alaska Airlines flight AS299
Looking for AS299 in the air…
Newark (EWR) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 25% of the time, and when it is late the delay averages 75 minutes. It was cancelled 1.4% of the time.
- On-time arrivals
- 74.7%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 75 min
- Flights arriving 15+ minutes late
- Flights tracked
- 293
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 51%
- Airline (crew, maintenance, cleaning) 29%
- Late-arriving aircraft 18%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Boston (BOS) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 33% of the time, and when it is late the delay averages 40 minutes. It was cancelled 2.9% of the time.
- On-time arrivals
- 66.7%
- Less than 15 minutes late
- Cancelled
- 2.9%
- Of scheduled flights
- Average delay when late
- 40 min
- Flights arriving 15+ minutes late
- Flights tracked
- 34
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 59%
- Late-arriving aircraft 31%
- Airline (crew, maintenance, cleaning) 6%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 89.7% | 30 |
| October 2025 | 73.3% | 31 |
| November 2025 | 70.0% | 30 |
| December 2025 | 30.0% | 30 |
| January 2026 | 50.0% | 6 |
| February 2026 | 75.0% | 17 |
| March 2026 | 50.0% | 30 |
| April 2026 | 93.3% | 30 |
| May 2026 | 87.1% | 31 |
| June 2026 | 86.7% | 30 |
| July 2026 | 83.3% | 31 |
| August 2026 | 80.0% | 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