Flight OddsAS638 SEA → TUS
Alaska Airlines · Seattle, WA to Tucson, AZ · 190 flights observed, 2025-10-05 to 2026-05-11 · 1,215 mi
AS638 covers more than one route in the data window — the stats below are for SEA → TUS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
82%
Median delay
-6 min
90th percentile
+24 min
Cancellation rate
1%
How often is AS638 on time?
Across 190 flights on SEA → TUS from 2025-10-05 to 2026-05-11, AS638 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +24 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 154 | 82% |
| 16-30 min | 21 | 11% |
| 31-60 min | 8 | 4% |
| 61-120 min | 5 | 3% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 17 | 82% | +8 min |
| 2025-11 | 29 | 72% | +5 min |
| 2025-12 | 23 | 65% | +8 min |
| 2026-01 | 26 | 81% | -5 min |
| 2026-02 | 24 | 88% | -4 min |
| 2026-03 | 28 | 79% | 0 min |
| 2026-04 | 30 | 97% | -10 min |
| 2026-05 | 11 | 100% | -16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 32 | 75% |
| Tue | 24 | 83% |
| Wed | 25 | 80% |
| Thu | 29 | 93% |
| Fri | 30 | 90% |
| Sat | 16 | 81% |
| Sun | 32 | 72% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…