Flight OddsDL1509 ATL → HOU
Delta Air Lines · Atlanta, GA to Houston, TX · 365 flights observed, 2025-07-01 to 2026-06-30 · 696 mi
DL1509 covers more than one route in the data window — the stats below are for ATL → HOU, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
89%
Median delay
-8 min
90th percentile
+18 min
Cancellation rate
3%
How often is DL1509 on time?
Across 365 flights on ATL → HOU from 2025-07-01 to 2026-06-30, DL1509 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +18 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 315 | 89% |
| 16-30 min | 16 | 5% |
| 31-60 min | 12 | 3% |
| 61-120 min | 7 | 2% |
| 2+ hrs | 4 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 90% | -5 min |
| 2025-08 | 31 | 81% | +4 min |
| 2025-09 | 30 | 100% | -8 min |
| 2025-10 | 31 | 97% | -5 min |
| 2025-11 | 28 | 82% | 0 min |
| 2025-12 | 31 | 81% | 0 min |
| 2026-01 | 29 | 86% | -3 min |
| 2026-02 | 28 | 82% | +7 min |
| 2026-03 | 27 | 96% | -13 min |
| 2026-04 | 30 | 97% | -7 min |
| 2026-05 | 28 | 82% | +5 min |
| 2026-06 | 30 | 93% | -5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 50 | 96% |
| Tue | 52 | 85% |
| Wed | 51 | 84% |
| Thu | 52 | 90% |
| Fri | 51 | 92% |
| Sat | 50 | 90% |
| Sun | 48 | 85% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…