Flight OddsAS439 IAH → SEA
Alaska Airlines · Houston, TX to Seattle, WA · 361 flights observed, 2025-07-01 to 2026-06-30 · 1,874 mi
On-time arrival
68%
Median delay
0 min
90th percentile
+51 min
Cancellation rate
0%
How often is AS439 on time?
Across 361 flights on IAH → SEA from 2025-07-01 to 2026-06-30, AS439 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +51 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 243 | 68% |
| 16-30 min | 39 | 11% |
| 31-60 min | 50 | 14% |
| 61-120 min | 20 | 6% |
| 2+ hrs | 7 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 31% | +34 min |
| 2025-08 | 31 | 26% | +26 min |
| 2025-09 | 30 | 83% | 0 min |
| 2025-10 | 31 | 74% | +25 min |
| 2025-11 | 29 | 59% | +14 min |
| 2025-12 | 31 | 52% | +28 min |
| 2026-01 | 31 | 77% | +4 min |
| 2026-02 | 28 | 71% | +3 min |
| 2026-03 | 28 | 68% | +9 min |
| 2026-04 | 30 | 93% | -7 min |
| 2026-05 | 31 | 97% | -14 min |
| 2026-06 | 30 | 80% | +1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 71% |
| Tue | 53 | 68% |
| Wed | 52 | 69% |
| Thu | 51 | 75% |
| Fri | 50 | 68% |
| Sat | 52 | 56% |
| Sun | 49 | 67% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…