Flight OddsWN3729 BOS → DEN
Southwest Airlines · Boston, MA to Denver, CO · 42 flights observed, 2025-08-05 to 2025-10-01 · 1,754 mi
WN3729 covers more than one route in the data window — the stats below are for BOS → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
24%
Median delay
+49 min
90th percentile
+127 min
Cancellation rate
0%
How often is WN3729 on time?
Across 42 flights on BOS → DEN from 2025-08-05 to 2025-10-01, WN3729 arrived within 15 minutes of schedule 24% of the time. The median arrival delay was +49 min, and the worst 10% of flights arrived +127 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 10 | 24% |
| 16-30 min | 2 | 5% |
| 31-60 min | 15 | 36% |
| 61-120 min | 9 | 21% |
| 2+ hrs | 6 | 14% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 19 | 42% | +41 min |
| 2025-09 | 22 | 9% | +86 min |
| 2025-10 | 1 | 0% | +32 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 38% |
| Tue | 9 | 33% |
| Wed | 9 | 22% |
| Thu | 8 | 13% |
| Fri | 8 | 13% |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…