Flight OddsAS637 PHX → SEA
Alaska Airlines · Phoenix, AZ to Seattle, WA · 364 flights observed, 2025-07-01 to 2026-06-30 · 1,107 mi
On-time arrival
88%
Median delay
-7 min
90th percentile
+19 min
Cancellation rate
1%
How often is AS637 on time?
Across 364 flights on PHX → SEA from 2025-07-01 to 2026-06-30, AS637 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +19 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 | 318 | 88% |
| 16-30 min | 24 | 7% |
| 31-60 min | 7 | 2% |
| 61-120 min | 7 | 2% |
| 2+ hrs | 6 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 90% | -4 min |
| 2025-08 | 30 | 97% | +4 min |
| 2025-09 | 29 | 86% | +6 min |
| 2025-10 | 31 | 87% | +2 min |
| 2025-11 | 30 | 83% | 0 min |
| 2025-12 | 31 | 74% | +3 min |
| 2026-01 | 31 | 94% | -3 min |
| 2026-02 | 28 | 96% | -15 min |
| 2026-03 | 30 | 80% | +11 min |
| 2026-04 | 30 | 97% | -10 min |
| 2026-05 | 31 | 97% | -6 min |
| 2026-06 | 30 | 73% | +24 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 90% |
| Tue | 53 | 85% |
| Wed | 51 | 82% |
| Thu | 51 | 86% |
| Fri | 52 | 88% |
| Sat | 51 | 92% |
| Sun | 52 | 90% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…