Flight OddsAS1421 IAH → PDX
Alaska Airlines · Houston, TX to Portland, OR · 352 flights observed, 2025-07-01 to 2026-06-30 · 1,825 mi
On-time arrival
79%
Median delay
-5 min
90th percentile
+39 min
Cancellation rate
1%
How often is AS1421 on time?
Across 352 flights on IAH → PDX from 2025-07-01 to 2026-06-30, AS1421 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +39 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 | 274 | 79% |
| 16-30 min | 32 | 9% |
| 31-60 min | 22 | 6% |
| 61-120 min | 7 | 2% |
| 2+ hrs | 12 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 87% | +2 min |
| 2025-08 | 30 | 80% | +1 min |
| 2025-09 | 30 | 87% | -5 min |
| 2025-10 | 29 | 76% | +24 min |
| 2025-11 | 29 | 79% | +11 min |
| 2025-12 | 30 | 83% | +1 min |
| 2026-01 | 26 | 85% | -2 min |
| 2026-02 | 24 | 67% | +6 min |
| 2026-03 | 28 | 68% | +19 min |
| 2026-04 | 29 | 86% | -4 min |
| 2026-05 | 31 | 74% | +6 min |
| 2026-06 | 30 | 73% | +22 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 83% |
| Tue | 53 | 77% |
| Wed | 50 | 82% |
| Thu | 50 | 76% |
| Fri | 50 | 80% |
| Sat | 41 | 78% |
| Sun | 51 | 76% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…