Flight OddsUA661 EWR → ORD
United Airlines · Newark, NJ to Chicago, IL · 298 flights observed, 2025-08-19 to 2026-06-30 · 719 mi
UA661 covers more than one route in the data window — the stats below are for EWR → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
52%
Median delay
+14 min
90th percentile
+106 min
Cancellation rate
2%
How often is UA661 on time?
Across 298 flights on EWR → ORD from 2025-08-19 to 2026-06-30, UA661 arrived within 15 minutes of schedule 52% of the time. The median arrival delay was +14 min, and the worst 10% of flights arrived +106 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 150 | 52% |
| 16-30 min | 44 | 15% |
| 31-60 min | 50 | 17% |
| 61-120 min | 24 | 8% |
| 2+ hrs | 23 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 13 | 62% | +24 min |
| 2025-09 | 30 | 60% | +22 min |
| 2025-10 | 31 | 52% | +29 min |
| 2025-11 | 28 | 43% | +51 min |
| 2025-12 | 15 | 67% | +17 min |
| 2026-01 | 30 | 63% | +20 min |
| 2026-02 | 27 | 44% | +17 min |
| 2026-03 | 30 | 30% | +61 min |
| 2026-04 | 29 | 48% | +41 min |
| 2026-05 | 29 | 66% | +26 min |
| 2026-06 | 29 | 45% | +70 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 41 | 39% |
| Tue | 43 | 58% |
| Wed | 40 | 53% |
| Thu | 41 | 49% |
| Fri | 43 | 47% |
| Sat | 43 | 58% |
| Sun | 40 | 57% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…