Flight OddsWN1427 BOS → DEN
Southwest Airlines · Boston, MA to Denver, CO · 64 flights observed, 2025-11-02 to 2026-01-05 · 1,754 mi
WN1427 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
83%
Median delay
0 min
90th percentile
+23 min
Cancellation rate
0%
How often is WN1427 on time?
Across 64 flights on BOS → DEN from 2025-11-02 to 2026-01-05, WN1427 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +23 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 | 52 | 83% |
| 16-30 min | 6 | 10% |
| 31-60 min | 4 | 6% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 28 | 93% | -6 min |
| 2025-12 | 30 | 73% | +8 min |
| 2026-01 | 5 | 80% | +8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 90% |
| Tue | 9 | 89% |
| Wed | 8 | 75% |
| Thu | 8 | 88% |
| Fri | 9 | 89% |
| Sat | 9 | 67% |
| Sun | 10 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…