United Airlines · Dallas/Fort Worth, TX to Washington, DC · 292 flights observed, 2025-07-01 to 2026-06-30 · 1,172 mi
UA2639 covers more than one route in the data window — the stats below are for DFW → IAD, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA2639 on time?
Across 292 flights on DFW → IAD from 2025-07-01 to 2026-06-30, UA2639 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +21 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 | 254 | 88% |
| 16-30 min | 11 | 4% |
| 31-60 min | 9 | 3% |
| 61-120 min | 7 | 2% |
| 2+ hrs | 7 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 81% | +20 min |
| 2025-08 | 23 | 87% | +19 min |
| 2025-09 | 17 | 94% | -5 min |
| 2025-10 | 19 | 79% | +23 min |
| 2025-11 | 22 | 86% | -6 min |
| 2025-12 | 31 | 90% | -4 min |
| 2026-01 | 25 | 100% | -15 min |
| 2026-02 | 21 | 95% | -12 min |
| 2026-03 | 23 | 87% | +3 min |
| 2026-04 | 30 | 90% | -10 min |
| 2026-05 | 27 | 89% | -7 min |
| 2026-06 | 19 | 79% | +9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 50 | 92% |
| Tue | 27 | 89% |
| Wed | 26 | 88% |
| Thu | 50 | 80% |
| Fri | 51 | 92% |
| Sat | 39 | 87% |
| Sun | 45 | 89% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…