UA1770 STL → DEN
United Airlines · St. Louis, MO to Denver, CO · 15 flights observed, 2026-04-30 to 2026-05-20 · 770 mi
UA1770 covers more than one route in the data window — the stats below are for STL → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
53%
Median delay
+10 min
90th percentile
+139 min
Cancellation rate
0%
How often is UA1770 on time?
Across 15 flights on STL → DEN from 2026-04-30 to 2026-05-20, UA1770 arrived within 15 minutes of schedule 53% of the time. The median arrival delay was +10 min, and the worst 10% of flights arrived +139 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 | 8 | 53% |
| 16-30 min | 1 | 7% |
| 31-60 min | 3 | 20% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 3 | 20% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 1 | 0% | +29 min |
| 2026-05 | 14 | 57% | +41 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 33% |
| Tue | No data | — |
| Wed | 3 | 100% |
| Thu | 3 | 67% |
| Fri | 3 | 33% |
| Sat | No data | — |
| Sun | 3 | 33% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…