Flight OddsUnited Airlines · Cedar Rapids/Iowa City, IA to Chicago, IL · 23 flights observed, 2026-01-07 to 2026-02-11 · 196 mi
UA3631 covers more than one route in the data window — the stats below are for CID → ORD, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA3631 on time?
Across 23 flights on CID → ORD from 2026-01-07 to 2026-02-11, UA3631 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +23 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 19 | 86% |
| 16-30 min | 1 | 5% |
| 31-60 min | 2 | 9% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 17 | 82% | +0 min |
| 2026-02 | 5 | 100% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 75% |
| Tue | 5 | 80% |
| Wed | 5 | 80% |
| Thu | 5 | 100% |
| Fri | No data | — |
| Sat | 3 | 100% |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…