Flight OddsUA3631 RIC → ORD
United Airlines · Richmond, VA to Chicago, IL · 28 flights observed, 2026-04-02 to 2026-04-29 · 642 mi
UA3631 covers more than one route in the data window — the stats below are for RIC → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
93%
Median delay
-29 min
90th percentile
+10 min
Cancellation rate
4%
How often is UA3631 on time?
Across 28 flights on RIC → ORD from 2026-04-02 to 2026-04-29, UA3631 arrived within 15 minutes of schedule 93% of the time. The median arrival delay was -29 min, and the worst 10% of flights arrived +10 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 | 25 | 93% |
| 16-30 min | 1 | 4% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 27 | 93% | -19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | 3 | 67% |
| Wed | 4 | 100% |
| Thu | 4 | 100% |
| Fri | 4 | 75% |
| Sat | 4 | 100% |
| Sun | 4 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…