Flight OddsDelta Air Lines · Mission/McAllen/Edinburg, TX to Austin, TX · 123 flights observed, 2025-07-07 to 2026-06-30 · 279 mi
DL4121 covers more than one route in the data window — the stats below are for MFE → AUS, the one it has flown most recently. The others are linked under “Other routes”.
How often is DL4121 on time?
Across 123 flights on MFE → AUS from 2025-07-07 to 2026-06-30, DL4121 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +65 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 98 | 80% |
| 16-30 min | 5 | 4% |
| 31-60 min | 7 | 6% |
| 61-120 min | 6 | 5% |
| 2+ hrs | 7 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 22 | 77% | +21 min |
| 2025-08 | 25 | 60% | +41 min |
| 2025-09 | 26 | 88% | +2 min |
| 2025-10 | 4 | 50% | +39 min |
| 2026-05 | 20 | 95% | -18 min |
| 2026-06 | 26 | 85% | +9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 21 | 86% |
| Tue | 21 | 81% |
| Wed | 20 | 80% |
| Thu | 21 | 76% |
| Fri | 21 | 71% |
| Sat | No data | — |
| Sun | 19 | 84% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…