Flight OddsDL4312 SLC → BTM
Delta Air Lines · Salt Lake City, UT to Butte, MT · 361 flights observed, 2025-07-01 to 2026-06-30 · 357 mi
DL4312 covers more than one route in the data window — the stats below are for SLC → BTM, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
96%
Median delay
-15 min
90th percentile
+5 min
Cancellation rate
1%
How often is DL4312 on time?
Across 361 flights on SLC → BTM from 2025-07-01 to 2026-06-30, DL4312 arrived within 15 minutes of schedule 96% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +5 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 342 | 96% |
| 16-30 min | 6 | 2% |
| 31-60 min | 2 | 1% |
| 61-120 min | 5 | 1% |
| 2+ hrs | 1 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 93% | -13 min |
| 2025-08 | 31 | 100% | -16 min |
| 2025-09 | 30 | 93% | -6 min |
| 2025-10 | 31 | 97% | -4 min |
| 2025-11 | 28 | 100% | -18 min |
| 2025-12 | 28 | 100% | -14 min |
| 2026-01 | 30 | 100% | -15 min |
| 2026-02 | 28 | 96% | -13 min |
| 2026-03 | 31 | 97% | -11 min |
| 2026-04 | 29 | 93% | -12 min |
| 2026-05 | 30 | 90% | -3 min |
| 2026-06 | 30 | 93% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 51 | 98% |
| Tue | 53 | 94% |
| Wed | 50 | 96% |
| Thu | 48 | 96% |
| Fri | 52 | 98% |
| Sat | 51 | 96% |
| Sun | 51 | 94% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…