Flight OddsAS1131 DEN → PDX
Alaska Airlines · Denver, CO to Portland, OR · 90 flights observed, 2025-07-01 to 2025-10-25 · 991 mi
AS1131 covers more than one route in the data window — the stats below are for DEN → PDX, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
51%
Median delay
+12 min
90th percentile
+63 min
Cancellation rate
2%
How often is AS1131 on time?
Across 90 flights on DEN → PDX from 2025-07-01 to 2025-10-25, AS1131 arrived within 15 minutes of schedule 51% of the time. The median arrival delay was +12 min, and the worst 10% of flights arrived +63 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 45 | 51% |
| 16-30 min | 14 | 16% |
| 31-60 min | 17 | 19% |
| 61-120 min | 6 | 7% |
| 2+ hrs | 6 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 28 | 36% | +48 min |
| 2025-08 | 26 | 50% | +27 min |
| 2025-09 | 17 | 71% | +6 min |
| 2025-10 | 17 | 59% | +31 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 15 | 40% |
| Tue | 9 | 56% |
| Wed | 9 | 56% |
| Thu | 16 | 44% |
| Fri | 15 | 47% |
| Sat | 9 | 67% |
| Sun | 15 | 60% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…