Flight OddsDL1021 GSP → ATL
Delta Air Lines · Greer, SC to Atlanta, GA · 63 flights observed, 2026-02-12 to 2026-06-26 · 153 mi
DL1021 covers more than one route in the data window — the stats below are for GSP → ATL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
81%
Median delay
-18 min
90th percentile
+57 min
Cancellation rate
2%
How often is DL1021 on time?
Across 63 flights on GSP → ATL from 2026-02-12 to 2026-06-26, DL1021 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -18 min, and the worst 10% of flights arrived +57 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 | 50 | 81% |
| 16-30 min | 2 | 3% |
| 31-60 min | 4 | 6% |
| 61-120 min | 2 | 3% |
| 2+ hrs | 4 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-02 | 9 | 100% | -20 min |
| 2026-03 | 18 | 78% | +7 min |
| 2026-04 | 6 | 100% | -31 min |
| 2026-05 | 14 | 71% | +6 min |
| 2026-06 | 15 | 73% | +13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 15 | 73% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 17 | 88% |
| Fri | 17 | 88% |
| Sat | No data | — |
| Sun | 13 | 69% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…