Flight OddsUA4579 XNA → ORD
United Airlines · Fayetteville, AR to Chicago, IL · 35 flights observed, 2026-05-21 to 2026-06-24 · 522 mi
UA4579 covers more than one route in the data window — the stats below are for XNA → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
63%
Median delay
-2 min
90th percentile
+109 min
Cancellation rate
9%
How often is UA4579 on time?
Across 35 flights on XNA → ORD from 2026-05-21 to 2026-06-24, UA4579 arrived within 15 minutes of schedule 63% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +109 min or later. 9% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 20 | 63% |
| 16-30 min | 2 | 6% |
| 31-60 min | 4 | 13% |
| 61-120 min | 4 | 13% |
| 2+ hrs | 2 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 11 | 73% | +7 min |
| 2026-06 | 21 | 57% | +59 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 75% |
| Tue | 5 | 80% |
| Wed | 3 | 67% |
| Thu | 5 | 60% |
| Fri | 5 | 60% |
| Sat | 5 | 20% |
| Sun | 5 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…