Flight OddsDL2570 BOS → ORD
Delta Air Lines · Boston, MA to Chicago, IL · 260 flights observed, 2025-07-01 to 2026-06-30 · 867 mi
DL2570 covers more than one route in the data window — the stats below are for BOS → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
80%
Median delay
-7 min
90th percentile
+36 min
Cancellation rate
3%
How often is DL2570 on time?
Across 260 flights on BOS → ORD from 2025-07-01 to 2026-06-30, DL2570 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +36 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 | 201 | 80% |
| 16-30 min | 22 | 9% |
| 31-60 min | 12 | 5% |
| 61-120 min | 10 | 4% |
| 2+ hrs | 5 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 26 | 85% | +7 min |
| 2025-08 | 28 | 86% | +3 min |
| 2025-09 | 30 | 80% | +22 min |
| 2025-10 | 31 | 68% | +2 min |
| 2025-11 | 29 | 66% | +11 min |
| 2025-12 | 19 | 68% | +9 min |
| 2026-03 | 16 | 88% | -7 min |
| 2026-04 | 22 | 86% | -2 min |
| 2026-05 | 23 | 91% | -1 min |
| 2026-06 | 26 | 92% | -8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 41 | 80% |
| Tue | 41 | 80% |
| Wed | 40 | 90% |
| Thu | 37 | 92% |
| Fri | 38 | 84% |
| Sat | 23 | 52% |
| Sun | 30 | 70% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…