Flight OddsUA4335 IAD → PHL
United Airlines · Washington, DC to Philadelphia, PA · 15 flights observed, 2026-05-22 to 2026-06-21 · 135 mi
UA4335 covers more than one route in the data window — the stats below are for IAD → PHL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
73%
Median delay
-11 min
90th percentile
+77 min
Cancellation rate
0%
How often is UA4335 on time?
Across 15 flights on IAD → PHL from 2026-05-22 to 2026-06-21, UA4335 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +77 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 | 11 | 73% |
| 16-30 min | 1 | 7% |
| 31-60 min | 0 | 0% |
| 61-120 min | 2 | 13% |
| 2+ hrs | 1 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 6 | 100% | -13 min |
| 2026-06 | 9 | 56% | +33 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | No data | — |
| Wed | No data | — |
| Thu | No data | — |
| Fri | 5 | 80% |
| Sat | 5 | 60% |
| Sun | 5 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…