Flight OddsUA2144 ORD → STL
United Airlines · Chicago, IL to St. Louis, MO · 39 flights observed, 2026-05-21 to 2026-06-30 · 258 mi
UA2144 covers more than one route in the data window — the stats below are for ORD → STL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
64%
Median delay
+5 min
90th percentile
+100 min
Cancellation rate
0%
How often is UA2144 on time?
Across 39 flights on ORD → STL from 2026-05-21 to 2026-06-30, UA2144 arrived within 15 minutes of schedule 64% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +100 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 | 25 | 64% |
| 16-30 min | 2 | 5% |
| 31-60 min | 4 | 10% |
| 61-120 min | 4 | 10% |
| 2+ hrs | 4 | 10% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 9 | 67% | +15 min |
| 2026-06 | 30 | 63% | +41 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 83% |
| Tue | 6 | 50% |
| Wed | 4 | 25% |
| Thu | 6 | 83% |
| Fri | 6 | 50% |
| Sat | 6 | 100% |
| Sun | 5 | 40% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…