Flight OddsAS438 SEA → IAH
Alaska Airlines · Seattle, WA to Houston, TX · 363 flights observed, 2025-07-01 to 2026-06-30 · 1,874 mi
On-time arrival
67%
Median delay
+4 min
90th percentile
+43 min
Cancellation rate
1%
How often is AS438 on time?
Across 363 flights on SEA → IAH from 2025-07-01 to 2026-06-30, AS438 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +4 min, and the worst 10% of flights arrived +43 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 | 242 | 67% |
| 16-30 min | 49 | 14% |
| 31-60 min | 51 | 14% |
| 61-120 min | 13 | 4% |
| 2+ hrs | 4 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 40% | +29 min |
| 2025-08 | 30 | 57% | +16 min |
| 2025-09 | 30 | 80% | +3 min |
| 2025-10 | 31 | 61% | +21 min |
| 2025-11 | 29 | 62% | +15 min |
| 2025-12 | 31 | 42% | +20 min |
| 2026-01 | 31 | 68% | +2 min |
| 2026-02 | 27 | 85% | -1 min |
| 2026-03 | 30 | 83% | +4 min |
| 2026-04 | 30 | 90% | -7 min |
| 2026-05 | 31 | 77% | -1 min |
| 2026-06 | 29 | 66% | +13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 51 | 76% |
| Tue | 52 | 69% |
| Wed | 52 | 71% |
| Thu | 50 | 64% |
| Fri | 51 | 59% |
| Sat | 52 | 62% |
| Sun | 51 | 71% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…