Flight OddsUA4391 ORD → SGF
United Airlines · Chicago, IL to Springfield, MO · 253 flights observed, 2025-07-01 to 2026-05-31 · 438 mi
UA4391 covers more than one route in the data window — the stats below are for ORD → SGF, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
61%
Median delay
+5 min
90th percentile
+94 min
Cancellation rate
6%
How often is UA4391 on time?
Across 253 flights on ORD → SGF from 2025-07-01 to 2026-05-31, UA4391 arrived within 15 minutes of schedule 61% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +94 min or later. 6% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 145 | 61% |
| 16-30 min | 27 | 11% |
| 31-60 min | 29 | 12% |
| 61-120 min | 21 | 9% |
| 2+ hrs | 14 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 60% | +31 min |
| 2025-08 | 15 | 53% | +20 min |
| 2025-09 | 6 | 100% | -9 min |
| 2025-10 | 31 | 74% | +19 min |
| 2025-11 | 25 | 72% | +6 min |
| 2025-12 | 16 | 44% | +94 min |
| 2026-01 | 24 | 54% | +17 min |
| 2026-02 | 28 | 57% | +5 min |
| 2026-03 | 27 | 59% | +35 min |
| 2026-04 | 23 | 52% | +49 min |
| 2026-05 | 11 | 73% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 33 | 55% |
| Tue | 33 | 73% |
| Wed | 36 | 50% |
| Thu | 35 | 54% |
| Fri | 34 | 56% |
| Sat | 32 | 72% |
| Sun | 33 | 73% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…