Flight OddsDL2173 BOI → SLC
Delta Air Lines · Boise, ID to Salt Lake City, UT · 359 flights observed, 2025-07-01 to 2026-06-27 · 290 mi
On-time arrival
92%
Median delay
-8 min
90th percentile
+13 min
Cancellation rate
2%
How often is DL2173 on time?
Across 359 flights on BOI → SLC from 2025-07-01 to 2026-06-27, DL2173 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +13 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 323 | 92% |
| 16-30 min | 14 | 4% |
| 31-60 min | 8 | 2% |
| 61-120 min | 2 | 1% |
| 2+ hrs | 6 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 100% | -7 min |
| 2025-08 | 31 | 100% | -7 min |
| 2025-09 | 30 | 97% | -4 min |
| 2025-10 | 31 | 90% | +21 min |
| 2025-11 | 28 | 89% | +13 min |
| 2025-12 | 30 | 90% | 0 min |
| 2026-01 | 31 | 74% | +19 min |
| 2026-02 | 26 | 92% | -1 min |
| 2026-03 | 30 | 90% | +3 min |
| 2026-04 | 29 | 86% | -5 min |
| 2026-05 | 31 | 97% | -4 min |
| 2026-06 | 25 | 92% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 49 | 88% |
| Tue | 49 | 88% |
| Wed | 52 | 94% |
| Thu | 51 | 94% |
| Fri | 50 | 94% |
| Sat | 51 | 92% |
| Sun | 51 | 90% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…