Flight OddsDL2570 ORD → BOS
Delta Air Lines · Chicago, IL to Boston, MA · 235 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 ORD → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
73%
Median delay
-7 min
90th percentile
+60 min
Cancellation rate
3%
How often is DL2570 on time?
Across 235 flights on ORD → BOS from 2025-07-01 to 2026-06-30, DL2570 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +60 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 | 168 | 73% |
| 16-30 min | 23 | 10% |
| 31-60 min | 15 | 7% |
| 61-120 min | 15 | 7% |
| 2+ hrs | 8 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 25 | 60% | +3 min |
| 2025-08 | 28 | 86% | +8 min |
| 2025-09 | 29 | 72% | +30 min |
| 2025-10 | 31 | 58% | +24 min |
| 2025-11 | 29 | 72% | +6 min |
| 2025-12 | 19 | 74% | +2 min |
| 2026-03 | 19 | 74% | -2 min |
| 2026-04 | 24 | 83% | +1 min |
| 2026-05 | 4 | 100% | -8 min |
| 2026-06 | 21 | 81% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 37 | 70% |
| Tue | 38 | 71% |
| Wed | 37 | 73% |
| Thu | 32 | 72% |
| Fri | 33 | 85% |
| Sat | 25 | 64% |
| Sun | 27 | 78% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…