Flight OddsUA4179 RIC → IAD
United Airlines · Richmond, VA to Washington, DC · 104 flights observed, 2025-07-01 to 2025-10-23 · 100 mi
UA4179 covers more than one route in the data window — the stats below are for RIC → IAD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
80%
Median delay
-15 min
90th percentile
+88 min
Cancellation rate
1%
How often is UA4179 on time?
Across 104 flights on RIC → IAD from 2025-07-01 to 2025-10-23, UA4179 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +88 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 82 | 80% |
| 16-30 min | 2 | 2% |
| 31-60 min | 5 | 5% |
| 61-120 min | 4 | 4% |
| 2+ hrs | 10 | 10% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 73% | +35 min |
| 2025-08 | 31 | 81% | +16 min |
| 2025-09 | 25 | 88% | -5 min |
| 2025-10 | 17 | 76% | -5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 16 | 63% |
| Tue | 16 | 81% |
| Wed | 17 | 88% |
| Thu | 17 | 82% |
| Fri | 12 | 83% |
| Sat | 12 | 83% |
| Sun | 13 | 77% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…