Flight OddsDL1223 RSW → BOS
Delta Air Lines · Fort Myers, FL to Boston, MA · 172 flights observed, 2025-07-01 to 2025-12-19 · 1,249 mi
DL1223 covers more than one route in the data window — the stats below are for RSW → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
79%
Median delay
-11 min
90th percentile
+64 min
Cancellation rate
1%
How often is DL1223 on time?
Across 172 flights on RSW → BOS from 2025-07-01 to 2025-12-19, DL1223 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +64 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 | 135 | 79% |
| 16-30 min | 5 | 3% |
| 31-60 min | 12 | 7% |
| 61-120 min | 13 | 8% |
| 2+ hrs | 6 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 87% | -1 min |
| 2025-08 | 31 | 94% | -11 min |
| 2025-09 | 30 | 70% | +15 min |
| 2025-10 | 31 | 68% | +18 min |
| 2025-11 | 30 | 87% | +22 min |
| 2025-12 | 18 | 61% | +16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 79% |
| Tue | 25 | 84% |
| Wed | 25 | 80% |
| Thu | 24 | 58% |
| Fri | 25 | 88% |
| Sat | 24 | 83% |
| Sun | 24 | 79% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…