Flight OddsUA4516 IAD → PHL
United Airlines · Washington, DC to Philadelphia, PA · 67 flights observed, 2026-03-05 to 2026-05-20 · 135 mi
UA4516 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
71%
Median delay
0 min
90th percentile
+78 min
Cancellation rate
1%
How often is UA4516 on time?
Across 67 flights on IAD → PHL from 2026-03-05 to 2026-05-20, UA4516 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +78 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 | 47 | 71% |
| 16-30 min | 4 | 6% |
| 31-60 min | 6 | 9% |
| 61-120 min | 3 | 5% |
| 2+ hrs | 6 | 9% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 23 | 65% | +23 min |
| 2026-04 | 24 | 75% | +14 min |
| 2026-05 | 19 | 74% | +16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 11 | 73% |
| Tue | 11 | 82% |
| Wed | 5 | 60% |
| Thu | 11 | 64% |
| Fri | 11 | 55% |
| Sat | 6 | 83% |
| Sun | 11 | 82% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…