Flight OddsUA3431 BNA → ORD
United Airlines · Nashville, TN to Chicago, IL · 83 flights observed, 2025-08-19 to 2025-12-17 · 409 mi
UA3431 covers more than one route in the data window — the stats below are for BNA → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
82%
Median delay
-3 min
90th percentile
+21 min
Cancellation rate
0%
How often is UA3431 on time?
Across 83 flights on BNA → ORD from 2025-08-19 to 2025-12-17, UA3431 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +21 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 | 68 | 82% |
| 16-30 min | 9 | 11% |
| 31-60 min | 4 | 5% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 2 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 13 | 100% | -5 min |
| 2025-09 | 30 | 83% | -4 min |
| 2025-10 | 25 | 84% | +3 min |
| 2025-12 | 15 | 60% | +23 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 11 | 64% |
| Tue | 13 | 85% |
| Wed | 13 | 92% |
| Thu | 12 | 100% |
| Fri | 12 | 83% |
| Sat | 11 | 82% |
| Sun | 11 | 64% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…