UA1998
United Airlines flight 1998 — Chicago (ORD) to Newark (EWR)
On time
78%
Avg delay
~54 min
Cancelled
1.8%
UA1998 is fairly reliable, though delays happen. About 78% of departures arrive on time. When delays happen, the most common cause is air traffic / NAS.
Monthly breakdown
| Month | On time | Cancelled | Avg delay |
|---|---|---|---|
| 2026-07 | 52% | 12.9% | 116 min |
| 2026-06 | 87% | 0.0% | 29 min |
| 2026-05 | 91% | 0.0% | 103 min |
| 2026-05 | 47% | 5.0% | 98 min |
| 2026-05 | 67% | 0.0% | 50 min |
| 2026-04 | 100% | 0.0% | 0 min |
| 2026-03 | 78% | 4.2% | 68 min |
| 2026-03 | 100% | 0.0% | 0 min |
| 2026-02 | 78% | 0.0% | 98 min |
| 2026-02 | 76% | 0.0% | 122 min |
| 2026-01 | 65% | 4.2% | 73 min |
| 2025-12 | 69% | 0.0% | 116 min |
Top delay cause
air traffic / NAS
Based on 1,840 tracked departures
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Get a free briefingData last updated October 2026. Source: Bureau of Transportation Statistics.