Flight OddsUA2173 BOI → DEN
United Airlines · Boise, ID to Denver, CO · 364 flights observed, 2025-07-01 to 2026-06-30 · 649 mi
UA2173 covers more than one route in the data window — the stats below are for BOI → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
76%
Median delay
-3 min
90th percentile
+67 min
Cancellation rate
0%
How often is UA2173 on time?
Across 364 flights on BOI → DEN from 2025-07-01 to 2026-06-30, UA2173 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +67 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 | 274 | 76% |
| 16-30 min | 25 | 7% |
| 31-60 min | 23 | 6% |
| 61-120 min | 21 | 6% |
| 2+ hrs | 17 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 60% | +28 min |
| 2025-08 | 31 | 52% | +47 min |
| 2025-09 | 29 | 62% | +16 min |
| 2025-10 | 31 | 81% | +2 min |
| 2025-11 | 29 | 79% | +3 min |
| 2025-12 | 31 | 84% | +11 min |
| 2026-01 | 31 | 84% | +3 min |
| 2026-02 | 28 | 89% | +8 min |
| 2026-03 | 31 | 84% | +6 min |
| 2026-04 | 30 | 90% | +28 min |
| 2026-05 | 30 | 77% | +17 min |
| 2026-06 | 29 | 72% | +32 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 73% |
| Tue | 50 | 86% |
| Wed | 52 | 83% |
| Thu | 50 | 70% |
| Fri | 52 | 65% |
| Sat | 52 | 73% |
| Sun | 52 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…