Flight OddsBIL → SEA Alaska Airlines
Alaska Airlines · Billings, MT to Seattle, WA · 902 flights, 2025-07-01 to 2026-06-30 · aggregated across 10 flight numbers
On-time arrival
86%
Median delay
-8 min
90th percentile
+24 min
Cancellation rate
1%
How on-time is Alaska Airlines from BIL to SEA?
Across every Alaska Airlines flight number on BIL → SEA (902 flights, 2025-07-01 to 2026-06-30), 86% arrived within 15 minutes of schedule. Median arrival delay -8 min; the worst 10% ran +24 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 768 | 86% |
| 16-30 min | 49 | 6% |
| 31-60 min | 42 | 5% |
| 61-120 min | 18 | 2% |
| 2+ hrs | 13 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 91 | 85% | +3 min |
| 2025-08 | 88 | 80% | 0 min |
| 2025-09 | 82 | 84% | +5 min |
| 2025-10 | 88 | 95% | -7 min |
| 2025-11 | 76 | 89% | -5 min |
| 2025-12 | 60 | 70% | +17 min |
| 2026-01 | 62 | 94% | -8 min |
| 2026-02 | 55 | 93% | -5 min |
| 2026-03 | 58 | 86% | +1 min |
| 2026-04 | 60 | 98% | -10 min |
| 2026-05 | 81 | 80% | +4 min |
| 2026-06 | 89 | 84% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 129 | 91% |
| Tue | 129 | 83% |
| Wed | 124 | 84% |
| Thu | 127 | 87% |
| Fri | 128 | 86% |
| Sat | 123 | 86% |
| Sun | 130 | 88% |
AS flight numbers on BIL → SEA
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…