Flight OddsDEN → BOI Southwest Airlines
Southwest Airlines · Denver, CO to Boise, ID · 1,093 flights, 2025-07-01 to 2026-06-30 · aggregated across 46 flight numbers
On-time arrival
72%
Median delay
+1 min
90th percentile
+43 min
Cancellation rate
0%
How on-time is Southwest Airlines from DEN to BOI?
Across every Southwest Airlines flight number on DEN → BOI (1,093 flights, 2025-07-01 to 2026-06-30), 72% arrived within 15 minutes of schedule. Median arrival delay +1 min; the worst 10% ran +43 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 788 | 72% |
| 16-30 min | 133 | 12% |
| 31-60 min | 106 | 10% |
| 61-120 min | 46 | 4% |
| 2+ hrs | 16 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 96 | 59% | +23 min |
| 2025-08 | 93 | 66% | +20 min |
| 2025-09 | 90 | 86% | +3 min |
| 2025-10 | 93 | 75% | +6 min |
| 2025-11 | 86 | 86% | -1 min |
| 2025-12 | 92 | 72% | +11 min |
| 2026-01 | 89 | 89% | -5 min |
| 2026-02 | 83 | 77% | +6 min |
| 2026-03 | 88 | 66% | +18 min |
| 2026-04 | 92 | 76% | +5 min |
| 2026-05 | 97 | 67% | +12 min |
| 2026-06 | 90 | 52% | +21 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 157 | 66% |
| Tue | 159 | 75% |
| Wed | 156 | 79% |
| Thu | 154 | 70% |
| Fri | 155 | 65% |
| Sat | 142 | 79% |
| Sun | 166 | 73% |
WN flight numbers on DEN → BOI
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…