Flight AS618
Alaska Airlines flight AS618
Looking for AS618 in the air…
Seattle (SEA) to St Louis (STL)
Historically, this flight arrives 15+ minutes late 7% of the time, and when it is late the delay averages 61 minutes. It was cancelled 0.6% of the time.
- On-time arrivals
- 92.5%
- Less than 15 minutes late
- Cancelled
- 0.6%
- Of scheduled flights
- Average delay when late
- 61 min
- Flights arriving 15+ minutes late
- Flights tracked
- 163
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 51%
- Late-arriving aircraft 31%
- Air traffic control & airport 18%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
St Louis (STL) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 16% of the time, and when it is late the delay averages 75 minutes. It was cancelled 0.8% of the time.
- On-time arrivals
- 84.4%
- Less than 15 minutes late
- Cancelled
- 0.8%
- Of scheduled flights
- Average delay when late
- 75 min
- Flights arriving 15+ minutes late
- Flights tracked
- 129
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 54%
- Air traffic control & airport 21%
- Airline (crew, maintenance, cleaning) 20%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Albuquerque (ABQ) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 11% of the time, and when it is late the delay averages 47 minutes. It was cancelled 1.1% of the time.
- On-time arrivals
- 88.8%
- Less than 15 minutes late
- Cancelled
- 1.1%
- Of scheduled flights
- Average delay when late
- 47 min
- Flights arriving 15+ minutes late
- Flights tracked
- 90
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 45%
- Late-arriving aircraft 35%
- Airline (crew, maintenance, cleaning) 20%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Santa Barbara (SBA) to Seattle (SEA)
Only 11 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
- 11
- Scheduled flights in the period
Lihue, Kauai (LIH) to Portland (PDX)
Only 5 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
- 5
- Scheduled flights in the period
Nashville (BNA) to Seattle (SEA)
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 |
|---|---|---|
| September 2025 | 100.0% | 30 |
| October 2025 | 100.0% | 10 |
| November 2025 | 76.7% | 30 |
| December 2025 | 92.3% | 14 |
| January 2026 | 95.7% | 48 |
| February 2026 | 100.0% | 37 |
| March 2026 | 100.0% | 19 |
| April 2026 | 100.0% | 4 |
| May 2026 | 65.8% | 38 |
| June 2026 | 86.4% | 60 |
| July 2026 | 91.9% | 62 |
| August 2026 | 87.2% | 47 |
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