Flight OddsSEA → BIL Alaska Airlines
Alaska Airlines · Seattle, WA to Billings, MT · 902 flights, 2025-07-01 to 2026-06-30 · aggregated across 19 flight numbers
On-time arrival
84%
Median delay
-6 min
90th percentile
+25 min
Cancellation rate
1%
How on-time is Alaska Airlines from SEA to BIL?
Across every Alaska Airlines flight number on SEA → BIL (902 flights, 2025-07-01 to 2026-06-30), 84% arrived within 15 minutes of schedule. Median arrival delay -6 min; the worst 10% ran +25 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 752 | 84% |
| 16-30 min | 78 | 9% |
| 31-60 min | 37 | 4% |
| 61-120 min | 19 | 2% |
| 2+ hrs | 6 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 91 | 68% | +11 min |
| 2025-08 | 89 | 64% | +11 min |
| 2025-09 | 82 | 84% | +7 min |
| 2025-10 | 88 | 90% | -3 min |
| 2025-11 | 76 | 89% | -4 min |
| 2025-12 | 61 | 80% | -2 min |
| 2026-01 | 61 | 92% | -4 min |
| 2026-02 | 55 | 91% | -8 min |
| 2026-03 | 58 | 97% | -10 min |
| 2026-04 | 60 | 98% | -6 min |
| 2026-05 | 81 | 83% | +3 min |
| 2026-06 | 90 | 89% | +0 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 130 | 86% |
| Tue | 130 | 87% |
| Wed | 124 | 90% |
| Thu | 128 | 77% |
| Fri | 126 | 81% |
| Sat | 124 | 85% |
| Sun | 130 | 85% |
AS flight numbers on SEA → BIL
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…