Flight OddsUnited Airlines · Allentown/Bethlehem/Easton, PA to Chicago, IL · 303 flights observed, 2025-07-01 to 2026-06-30 · 654 mi
UA4166 covers more than one route in the data window — the stats below are for ABE → ORD, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA4166 on time?
Across 303 flights on ABE → ORD from 2025-07-01 to 2026-06-30, UA4166 arrived within 15 minutes of schedule 90% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +16 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 | 261 | 90% |
| 16-30 min | 6 | 2% |
| 31-60 min | 5 | 2% |
| 61-120 min | 9 | 3% |
| 2+ hrs | 10 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 97% | -12 min |
| 2025-08 | 28 | 100% | -18 min |
| 2025-09 | 29 | 100% | -21 min |
| 2025-10 | 31 | 97% | -10 min |
| 2025-11 | 30 | 70% | +18 min |
| 2025-12 | 28 | 89% | +8 min |
| 2026-01 | 5 | 80% | -14 min |
| 2026-02 | 13 | 92% | -5 min |
| 2026-03 | 29 | 86% | +12 min |
| 2026-04 | 27 | 70% | +40 min |
| 2026-05 | 10 | 100% | -9 min |
| 2026-06 | 30 | 93% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 42 | 93% |
| Tue | 40 | 90% |
| Wed | 42 | 90% |
| Thu | 43 | 84% |
| Fri | 41 | 93% |
| Sat | 40 | 90% |
| Sun | 43 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…