Delta Air Lines · Chicago, IL to Salt Lake City, UT · 129 flights observed, 2025-08-11 to 2025-12-19 · 1,250 mi
DL1739 covers more than one route in the data window — the stats below are for ORD → SLC, the one it has flown most recently. The others are linked under “Other routes”.
How often is DL1739 on time?
Across 129 flights on ORD → SLC from 2025-08-11 to 2025-12-19, DL1739 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +4 min, and the worst 10% of flights arrived +97 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 | 85 | 67% |
| 16-30 min | 15 | 12% |
| 31-60 min | 4 | 3% |
| 61-120 min | 13 | 10% |
| 2+ hrs | 10 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 21 | 62% | +59 min |
| 2025-09 | 30 | 70% | +10 min |
| 2025-10 | 31 | 77% | +17 min |
| 2025-11 | 26 | 73% | +51 min |
| 2025-12 | 19 | 42% | +122 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 18 | 72% |
| Tue | 18 | 78% |
| Wed | 19 | 68% |
| Thu | 18 | 78% |
| Fri | 18 | 61% |
| Sat | 18 | 61% |
| Sun | 18 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…