Flight OddsDL421 DTW → LAS
Delta Air Lines · Detroit, MI to Las Vegas, NV · 361 flights observed, 2025-07-01 to 2026-06-30 · 1,749 mi
DL421 covers more than one route in the data window — the stats below are for DTW → LAS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
78%
Median delay
-1 min
90th percentile
+45 min
Cancellation rate
0%
How often is DL421 on time?
Across 361 flights on DTW → LAS from 2025-07-01 to 2026-06-30, DL421 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +45 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 | 283 | 78% |
| 16-30 min | 28 | 8% |
| 31-60 min | 28 | 8% |
| 61-120 min | 18 | 5% |
| 2+ hrs | 4 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 74% | +13 min |
| 2025-08 | 31 | 90% | +1 min |
| 2025-09 | 30 | 73% | +9 min |
| 2025-10 | 31 | 87% | +3 min |
| 2025-11 | 30 | 83% | +0 min |
| 2025-12 | 28 | 64% | +20 min |
| 2026-01 | 30 | 73% | +12 min |
| 2026-02 | 28 | 75% | +4 min |
| 2026-03 | 31 | 77% | +0 min |
| 2026-04 | 30 | 93% | 0 min |
| 2026-05 | 31 | 74% | +6 min |
| 2026-06 | 30 | 73% | +13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 79% |
| Tue | 53 | 75% |
| Wed | 50 | 78% |
| Thu | 50 | 82% |
| Fri | 52 | 77% |
| Sat | 52 | 81% |
| Sun | 52 | 77% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…