Flight OddsJFK → BOS Delta Air Lines
Delta Air Lines · New York, NY to Boston, MA · 1,791 flights, 2025-07-01 to 2026-06-30 · aggregated across 11 flight numbers
On-time arrival
78%
Median delay
-9 min
90th percentile
+66 min
Cancellation rate
3%
How on-time is Delta Air Lines from JFK to BOS?
Across every Delta Air Lines flight number on JFK → BOS (1,791 flights, 2025-07-01 to 2026-06-30), 78% arrived within 15 minutes of schedule. Median arrival delay -9 min; the worst 10% ran +66 min or later. 3% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1,346 | 78% |
| 16-30 min | 101 | 6% |
| 31-60 min | 90 | 5% |
| 61-120 min | 117 | 7% |
| 2+ hrs | 76 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 147 | 72% | +17 min |
| 2025-08 | 154 | 88% | -6 min |
| 2025-09 | 148 | 62% | +22 min |
| 2025-10 | 150 | 70% | +23 min |
| 2025-11 | 143 | 80% | +3 min |
| 2025-12 | 128 | 74% | +13 min |
| 2026-01 | 130 | 82% | +6 min |
| 2026-02 | 128 | 76% | +10 min |
| 2026-03 | 151 | 81% | +7 min |
| 2026-04 | 152 | 82% | +1 min |
| 2026-05 | 152 | 85% | 0 min |
| 2026-06 | 147 | 81% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 238 | 75% |
| Tue | 252 | 78% |
| Wed | 251 | 82% |
| Thu | 245 | 74% |
| Fri | 254 | 76% |
| Sat | 252 | 83% |
| Sun | 238 | 75% |
DL flight numbers on JFK → BOS
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…