Flight OddsDelta Air Lines · Raleigh/Durham, NC to Atlanta, GA · 342 flights observed, 2025-07-01 to 2026-06-30 · 356 mi
DL1550 covers more than one route in the data window — the stats below are for RDU → ATL, the one it has flown most recently. The others are linked under “Other routes”.
How often is DL1550 on time?
Across 342 flights on RDU → ATL from 2025-07-01 to 2026-06-30, DL1550 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +31 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 | 282 | 84% |
| 16-30 min | 18 | 5% |
| 31-60 min | 15 | 4% |
| 61-120 min | 9 | 3% |
| 2+ hrs | 10 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 77% | +16 min |
| 2025-08 | 30 | 87% | -8 min |
| 2025-09 | 30 | 97% | -10 min |
| 2025-10 | 31 | 87% | -4 min |
| 2025-11 | 27 | 81% | -7 min |
| 2025-12 | 18 | 94% | -9 min |
| 2026-01 | 25 | 92% | -6 min |
| 2026-02 | 28 | 75% | +6 min |
| 2026-03 | 31 | 71% | +12 min |
| 2026-04 | 30 | 83% | +4 min |
| 2026-05 | 30 | 80% | +9 min |
| 2026-06 | 23 | 96% | -2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 48 | 88% |
| Tue | 51 | 84% |
| Wed | 50 | 92% |
| Thu | 48 | 88% |
| Fri | 48 | 77% |
| Sat | 44 | 82% |
| Sun | 45 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…