Flight OddsDL2921 SLC → SEA
Delta Air Lines · Salt Lake City, UT to Seattle, WA · 287 flights observed, 2025-07-01 to 2026-06-30 · 689 mi
On-time arrival
85%
Median delay
-8 min
90th percentile
+26 min
Cancellation rate
1%
How often is DL2921 on time?
Across 287 flights on SLC → SEA from 2025-07-01 to 2026-06-30, DL2921 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +26 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 242 | 85% |
| 16-30 min | 18 | 6% |
| 31-60 min | 14 | 5% |
| 61-120 min | 6 | 2% |
| 2+ hrs | 5 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 87% | +4 min |
| 2025-08 | 29 | 79% | 0 min |
| 2025-09 | 30 | 93% | -6 min |
| 2025-10 | 30 | 77% | +10 min |
| 2025-11 | 28 | 82% | +7 min |
| 2025-12 | 19 | 63% | +15 min |
| 2026-01 | 2 | 100% | -13 min |
| 2026-02 | 2 | 100% | -23 min |
| 2026-03 | 23 | 91% | +1 min |
| 2026-04 | 30 | 97% | -12 min |
| 2026-05 | 31 | 87% | -5 min |
| 2026-06 | 30 | 83% | +0 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 40 | 78% |
| Tue | 42 | 90% |
| Wed | 41 | 85% |
| Thu | 41 | 88% |
| Fri | 39 | 77% |
| Sat | 41 | 95% |
| Sun | 41 | 80% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…