Flight OddsDelta Air Lines · Atlanta, GA to Bristol/Johnson City/Kingsport, TN · 74 flights observed, 2025-10-06 to 2025-12-19 · 227 mi
DL4638 covers more than one route in the data window — the stats below are for ATL → TRI, the one it has flown most recently. The others are linked under “Other routes”.
How often is DL4638 on time?
Across 74 flights on ATL → TRI from 2025-10-06 to 2025-12-19, DL4638 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +36 min or later. 7% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 56 | 81% |
| 16-30 min | 5 | 7% |
| 31-60 min | 5 | 7% |
| 61-120 min | 1 | 1% |
| 2+ hrs | 2 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 25 | 92% | -4 min |
| 2025-11 | 25 | 76% | +2 min |
| 2025-12 | 19 | 74% | +19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 11 | 45% |
| Tue | 11 | 82% |
| Wed | 10 | 100% |
| Thu | 10 | 90% |
| Fri | 9 | 78% |
| Sat | 9 | 89% |
| Sun | 9 | 89% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…