Flight OddsDL518 ATL → BOS
Delta Air Lines · Atlanta, GA to Boston, MA · 275 flights observed, 2025-07-01 to 2026-06-30 · 946 mi
DL518 covers more than one route in the data window — the stats below are for ATL → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
60%
Median delay
+8 min
90th percentile
+82 min
Cancellation rate
1%
How often is DL518 on time?
Across 275 flights on ATL → BOS from 2025-07-01 to 2026-06-30, DL518 arrived within 15 minutes of schedule 60% of the time. The median arrival delay was +8 min, and the worst 10% of flights arrived +82 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 162 | 60% |
| 16-30 min | 28 | 10% |
| 31-60 min | 35 | 13% |
| 61-120 min | 30 | 11% |
| 2+ hrs | 17 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 28 | 43% | +47 min |
| 2025-08 | 29 | 79% | +4 min |
| 2025-09 | 22 | 50% | +37 min |
| 2025-10 | 28 | 50% | +32 min |
| 2025-11 | 30 | 63% | +21 min |
| 2025-12 | 19 | 74% | +12 min |
| 2026-01 | 10 | 60% | +26 min |
| 2026-02 | 9 | 89% | +7 min |
| 2026-03 | 21 | 43% | +39 min |
| 2026-04 | 20 | 50% | +20 min |
| 2026-05 | 27 | 70% | +10 min |
| 2026-06 | 29 | 59% | +25 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 45 | 53% |
| Tue | 39 | 49% |
| Wed | 38 | 71% |
| Thu | 43 | 65% |
| Fri | 44 | 55% |
| Sat | 22 | 77% |
| Sun | 41 | 56% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…