Flight OddsBUF → DEN Southwest Airlines
Southwest Airlines · Buffalo, NY to Denver, CO · 259 flights, 2025-07-01 to 2026-06-30 · aggregated across 26 flight numbers
On-time arrival
73%
Median delay
-2 min
90th percentile
+42 min
Cancellation rate
0%
How on-time is Southwest Airlines from BUF to DEN?
Across every Southwest Airlines flight number on BUF → DEN (259 flights, 2025-07-01 to 2026-06-30), 73% arrived within 15 minutes of schedule. Median arrival delay -2 min; the worst 10% ran +42 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 188 | 73% |
| 16-30 min | 31 | 12% |
| 31-60 min | 20 | 8% |
| 61-120 min | 14 | 5% |
| 2+ hrs | 5 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 39 | 85% | +1 min |
| 2025-08 | 37 | 76% | +10 min |
| 2025-09 | 34 | 74% | +11 min |
| 2025-10 | 30 | 87% | -10 min |
| 2025-11 | 22 | 82% | 0 min |
| 2025-12 | 18 | 67% | +22 min |
| 2026-01 | 14 | 64% | +6 min |
| 2026-02 | 19 | 79% | +9 min |
| 2026-03 | 2 | 100% | -6 min |
| 2026-04 | 3 | 33% | +57 min |
| 2026-05 | 5 | 60% | +19 min |
| 2026-06 | 35 | 46% | +27 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 31 | 77% |
| Tue | 26 | 77% |
| Wed | 22 | 68% |
| Thu | 30 | 80% |
| Fri | 34 | 68% |
| Sat | 69 | 62% |
| Sun | 46 | 85% |
WN flight numbers on BUF → DEN
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…