Flight OddsAS2181 BIL → PDX
Alaska Airlines · Billings, MT to Portland, OR · 116 flights observed, 2025-12-18 to 2026-06-09 · 679 mi
AS2181 covers more than one route in the data window — the stats below are for BIL → PDX, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
90%
Median delay
-11 min
90th percentile
+12 min
Cancellation rate
2%
How often is AS2181 on time?
Across 116 flights on BIL → PDX from 2025-12-18 to 2026-06-09, AS2181 arrived within 15 minutes of schedule 90% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +12 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 | 103 | 90% |
| 16-30 min | 4 | 4% |
| 31-60 min | 2 | 2% |
| 61-120 min | 4 | 4% |
| 2+ hrs | 1 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 14 | 93% | +0 min |
| 2026-01 | 6 | 50% | +20 min |
| 2026-02 | 17 | 94% | -11 min |
| 2026-03 | 28 | 93% | -7 min |
| 2026-04 | 21 | 95% | -3 min |
| 2026-05 | 19 | 89% | -3 min |
| 2026-06 | 9 | 89% | 0 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 17 | 94% |
| Tue | 17 | 94% |
| Wed | 15 | 100% |
| Thu | 16 | 100% |
| Fri | 17 | 82% |
| Sat | 15 | 73% |
| Sun | 17 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…