Flight OddsDL4312 BTM → SLC
Delta Air Lines · Butte, MT to Salt Lake City, UT · 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 BTM → SLC, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
95%
Median delay
-26 min
90th percentile
-2 min
Cancellation rate
1%
How often is DL4312 on time?
Across 361 flights on BTM → SLC from 2025-07-01 to 2026-06-30, DL4312 arrived within 15 minutes of schedule 95% of the time. The median arrival delay was -26 min, and the worst 10% of flights arrived -2 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 | 340 | 95% |
| 16-30 min | 3 | 1% |
| 31-60 min | 6 | 2% |
| 61-120 min | 2 | 1% |
| 2+ hrs | 7 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 87% | -9 min |
| 2025-08 | 31 | 100% | -24 min |
| 2025-09 | 30 | 93% | +7 min |
| 2025-10 | 31 | 97% | -20 min |
| 2025-11 | 28 | 96% | -28 min |
| 2025-12 | 29 | 93% | +20 min |
| 2026-01 | 30 | 100% | -28 min |
| 2026-02 | 28 | 96% | -24 min |
| 2026-03 | 31 | 100% | -23 min |
| 2026-04 | 29 | 93% | -19 min |
| 2026-05 | 30 | 90% | +5 min |
| 2026-06 | 30 | 93% | -14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 51 | 98% |
| Tue | 53 | 94% |
| Wed | 50 | 96% |
| Thu | 49 | 92% |
| Fri | 51 | 98% |
| Sat | 52 | 92% |
| Sun | 52 | 94% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…