Flight OddsUA3686 STL → ORD
United Airlines · St. Louis, MO to Chicago, IL · 21 flights observed, 2026-04-06 to 2026-04-29 · 258 mi
UA3686 covers more than one route in the data window — the stats below are for STL → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
71%
Median delay
-6 min
90th percentile
+52 min
Cancellation rate
0%
How often is UA3686 on time?
Across 21 flights on STL → ORD from 2026-04-06 to 2026-04-29, UA3686 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +52 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 | 15 | 71% |
| 16-30 min | 2 | 10% |
| 31-60 min | 3 | 14% |
| 61-120 min | 1 | 5% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 21 | 71% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 50% |
| Tue | 4 | 75% |
| Wed | 4 | 100% |
| Thu | 3 | 100% |
| Fri | 3 | 33% |
| Sat | No data | — |
| Sun | 3 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…