Flight OddsDL816 SAT → BOS
Delta Air Lines · San Antonio, TX to Boston, MA · 313 flights observed, 2025-07-01 to 2026-06-30 · 1,764 mi
DL816 covers more than one route in the data window — the stats below are for SAT → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
61%
Median delay
+7 min
90th percentile
+107 min
Cancellation rate
2%
How often is DL816 on time?
Across 313 flights on SAT → BOS from 2025-07-01 to 2026-06-30, DL816 arrived within 15 minutes of schedule 61% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +107 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 184 | 61% |
| 16-30 min | 32 | 11% |
| 31-60 min | 26 | 9% |
| 61-120 min | 34 | 11% |
| 2+ hrs | 28 | 9% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 57% | +35 min |
| 2025-08 | 28 | 75% | +4 min |
| 2025-09 | 30 | 23% | +54 min |
| 2025-10 | 30 | 37% | +77 min |
| 2025-11 | 27 | 70% | +30 min |
| 2025-12 | 19 | 63% | +18 min |
| 2026-01 | 25 | 80% | +3 min |
| 2026-02 | 27 | 63% | +26 min |
| 2026-03 | 31 | 74% | +19 min |
| 2026-04 | 29 | 66% | +16 min |
| 2026-05 | 6 | 50% | +50 min |
| 2026-06 | 22 | 68% | +19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 42 | 64% |
| Tue | 47 | 57% |
| Wed | 46 | 57% |
| Thu | 41 | 61% |
| Fri | 41 | 46% |
| Sat | 44 | 73% |
| Sun | 43 | 65% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…