Flight OddsUnited Airlines · Greensboro/High Point, NC to Washington, DC · 8 flights observed, 2026-05-05 to 2026-05-20 · 239 mi
UA4239 covers more than one route in the data window — the stats below are for GSO → IAD, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA4239 on time?
Across 8 flights on GSO → IAD from 2026-05-05 to 2026-05-20, UA4239 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +29 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 | 6 | 75% |
| 16-30 min | 1 | 13% |
| 31-60 min | 1 | 13% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 8 | 75% | -2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | 3 | 67% |
| Wed | 3 | 100% |
| Thu | 2 | 50% |
| Fri | No data | — |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…