Flight OddsAS630 SEA → SLC
Alaska Airlines · Seattle, WA to Salt Lake City, UT · 122 flights observed, 2025-07-15 to 2025-11-20 · 689 mi
AS630 covers more than one route in the data window — the stats below are for SEA → SLC, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
76%
Median delay
-5 min
90th percentile
+30 min
Cancellation rate
2%
How often is AS630 on time?
Across 122 flights on SEA → SLC from 2025-07-15 to 2025-11-20, AS630 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +30 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 90 | 76% |
| 16-30 min | 19 | 16% |
| 31-60 min | 6 | 5% |
| 61-120 min | 4 | 3% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 17 | 65% | +14 min |
| 2025-08 | 29 | 62% | +12 min |
| 2025-09 | 26 | 88% | -9 min |
| 2025-10 | 30 | 77% | +1 min |
| 2025-11 | 17 | 88% | -6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 18 | 83% |
| Tue | 19 | 68% |
| Wed | 19 | 74% |
| Thu | 19 | 68% |
| Fri | 17 | 71% |
| Sat | 10 | 80% |
| Sun | 17 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…