Flight OddsUA4550 RIC → IAD
United Airlines · Richmond, VA to Washington, DC · 21 flights observed, 2026-05-21 to 2026-06-22 · 100 mi
UA4550 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
76%
Median delay
-19 min
90th percentile
+140 min
Cancellation rate
0%
How often is UA4550 on time?
Across 21 flights on RIC → IAD from 2026-05-21 to 2026-06-22, UA4550 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -19 min, and the worst 10% of flights arrived +140 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 16 | 76% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 2 | 10% |
| 2+ hrs | 3 | 14% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 8 | 75% | +35 min |
| 2026-06 | 13 | 77% | +15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 5 | 60% |
| Fri | 5 | 80% |
| Sat | 5 | 100% |
| Sun | 1 | 0% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…