Flight OddsDL1120 SEA → SLC
Delta Air Lines · Seattle, WA to Salt Lake City, UT · 365 flights observed, 2025-07-01 to 2026-06-30 · 689 mi
On-time arrival
83%
Median delay
-7 min
90th percentile
+29 min
Cancellation rate
1%
How often is DL1120 on time?
Across 365 flights on SEA → SLC from 2025-07-01 to 2026-06-30, DL1120 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +29 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 | 299 | 83% |
| 16-30 min | 31 | 9% |
| 31-60 min | 14 | 4% |
| 61-120 min | 9 | 2% |
| 2+ hrs | 9 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 62% | +16 min |
| 2025-08 | 31 | 77% | +4 min |
| 2025-09 | 30 | 93% | -7 min |
| 2025-10 | 31 | 84% | +3 min |
| 2025-11 | 30 | 93% | -7 min |
| 2025-12 | 31 | 71% | +22 min |
| 2026-01 | 31 | 74% | +11 min |
| 2026-02 | 28 | 89% | +1 min |
| 2026-03 | 30 | 87% | -5 min |
| 2026-04 | 30 | 93% | -6 min |
| 2026-05 | 31 | 87% | +1 min |
| 2026-06 | 30 | 80% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 79% |
| Tue | 52 | 87% |
| Wed | 52 | 88% |
| Thu | 52 | 75% |
| Fri | 51 | 80% |
| Sat | 51 | 84% |
| Sun | 52 | 85% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…