Flight OddsORD → BOS Delta Air Lines
Delta Air Lines · Chicago, IL to Boston, MA · 1,313 flights, 2025-07-01 to 2026-06-30 · aggregated across 29 flight numbers
On-time arrival
71%
Median delay
-5 min
90th percentile
+82 min
Cancellation rate
4%
How on-time is Delta Air Lines from ORD to BOS?
Across every Delta Air Lines flight number on ORD → BOS (1,313 flights, 2025-07-01 to 2026-06-30), 71% arrived within 15 minutes of schedule. Median arrival delay -5 min; the worst 10% ran +82 min or later. 4% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 892 | 71% |
| 16-30 min | 109 | 9% |
| 31-60 min | 89 | 7% |
| 61-120 min | 93 | 7% |
| 2+ hrs | 77 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 110 | 68% | +8 min |
| 2025-08 | 112 | 79% | +13 min |
| 2025-09 | 106 | 64% | +33 min |
| 2025-10 | 115 | 57% | +29 min |
| 2025-11 | 106 | 65% | +39 min |
| 2025-12 | 101 | 65% | +16 min |
| 2026-01 | 89 | 71% | +24 min |
| 2026-02 | 90 | 82% | +4 min |
| 2026-03 | 103 | 69% | +11 min |
| 2026-04 | 105 | 73% | +4 min |
| 2026-05 | 117 | 84% | +2 min |
| 2026-06 | 106 | 72% | +16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 185 | 65% |
| Tue | 195 | 74% |
| Wed | 189 | 70% |
| Thu | 180 | 74% |
| Fri | 193 | 69% |
| Sat | 139 | 74% |
| Sun | 179 | 69% |
DL flight numbers on ORD → BOS
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…