Flight OddsUA3497 IAD → PHL
United Airlines · Washington, DC to Philadelphia, PA · 34 flights observed, 2026-05-21 to 2026-06-24 · 135 mi
UA3497 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
88%
Median delay
-4 min
90th percentile
+31 min
Cancellation rate
6%
How often is UA3497 on time?
Across 34 flights on IAD → PHL from 2026-05-21 to 2026-06-24, UA3497 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +31 min or later. 6% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 28 | 88% |
| 16-30 min | 0 | 0% |
| 31-60 min | 1 | 3% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 2 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 10 | 90% | -1 min |
| 2026-06 | 22 | 86% | +9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 5 | 80% |
| Wed | 5 | 100% |
| Thu | 4 | 100% |
| Fri | 4 | 75% |
| Sat | 4 | 100% |
| 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…