Flight OddsUA255 ORD → BWI
United Airlines · Chicago, IL to Baltimore, MD · 47 flights observed, 2025-09-25 to 2025-12-17 · 622 mi
UA255 covers more than one route in the data window — the stats below are for ORD → BWI, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
77%
Median delay
-4 min
90th percentile
+34 min
Cancellation rate
0%
How often is UA255 on time?
Across 47 flights on ORD → BWI from 2025-09-25 to 2025-12-17, UA255 arrived within 15 minutes of schedule 77% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +34 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 | 36 | 77% |
| 16-30 min | 6 | 13% |
| 31-60 min | 3 | 6% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 6 | 100% | -10 min |
| 2025-10 | 25 | 72% | +4 min |
| 2025-12 | 16 | 75% | +14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 100% |
| Tue | 7 | 86% |
| Wed | 7 | 43% |
| Thu | 7 | 86% |
| Fri | 7 | 71% |
| Sat | 7 | 71% |
| Sun | 6 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…