Flight OddsDelta Air Lines · Minneapolis, MN to Washington, DC · 192 flights observed, 2025-12-20 to 2026-06-30 · 907 mi
DL4129 covers more than one route in the data window — the stats below are for MSP → IAD, the one it has flown most recently. The others are linked under “Other routes”.
How often is DL4129 on time?
Across 192 flights on MSP → IAD from 2025-12-20 to 2026-06-30, DL4129 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +38 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 | 147 | 79% |
| 16-30 min | 16 | 9% |
| 31-60 min | 12 | 6% |
| 61-120 min | 6 | 3% |
| 2+ hrs | 6 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 12 | 75% | +5 min |
| 2026-01 | 29 | 79% | +28 min |
| 2026-02 | 27 | 89% | -13 min |
| 2026-03 | 29 | 72% | +3 min |
| 2026-04 | 30 | 73% | +19 min |
| 2026-05 | 30 | 83% | +20 min |
| 2026-06 | 30 | 77% | -1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 27 | 70% |
| Tue | 28 | 75% |
| Wed | 26 | 73% |
| Thu | 27 | 74% |
| Fri | 27 | 81% |
| Sat | 27 | 89% |
| Sun | 25 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…