Flight OddsDL5615 SDF → BOS
Delta Air Lines · Louisville, KY to Boston, MA · 165 flights observed, 2026-01-05 to 2026-06-30 · 829 mi
DL5615 covers more than one route in the data window — the stats below are for SDF → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
79%
Median delay
-5 min
90th percentile
+39 min
Cancellation rate
3%
How often is DL5615 on time?
Across 165 flights on SDF → BOS from 2026-01-05 to 2026-06-30, DL5615 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +39 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 127 | 79% |
| 16-30 min | 10 | 6% |
| 31-60 min | 15 | 9% |
| 61-120 min | 7 | 4% |
| 2+ hrs | 1 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 19 | 84% | +3 min |
| 2026-02 | 20 | 65% | +6 min |
| 2026-03 | 30 | 83% | +1 min |
| 2026-04 | 30 | 80% | +5 min |
| 2026-05 | 31 | 77% | +5 min |
| 2026-06 | 30 | 83% | +2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 88% |
| Tue | 25 | 88% |
| Wed | 25 | 76% |
| Thu | 25 | 80% |
| Fri | 25 | 64% |
| Sat | 16 | 75% |
| Sun | 20 | 85% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…