Flight OddsUnited Airlines · Dallas/Fort Worth, TX to Washington, DC · 328 flights observed, 2025-07-01 to 2026-06-30 · 1,172 mi
UA1240 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 UA1240 on time?
Across 328 flights on DFW → IAD from 2025-07-01 to 2026-06-30, UA1240 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +64 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 | 261 | 81% |
| 16-30 min | 16 | 5% |
| 31-60 min | 12 | 4% |
| 61-120 min | 26 | 8% |
| 2+ hrs | 9 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 71% | +41 min |
| 2025-08 | 30 | 87% | 0 min |
| 2025-09 | 30 | 93% | +1 min |
| 2025-10 | 30 | 77% | +12 min |
| 2025-11 | 26 | 73% | +20 min |
| 2025-12 | 15 | 80% | -1 min |
| 2026-01 | 17 | 94% | -6 min |
| 2026-02 | 24 | 96% | -12 min |
| 2026-03 | 31 | 74% | +11 min |
| 2026-04 | 30 | 87% | +4 min |
| 2026-05 | 30 | 73% | +23 min |
| 2026-06 | 30 | 70% | +20 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 44 | 84% |
| Tue | 44 | 82% |
| Wed | 49 | 78% |
| Thu | 48 | 79% |
| Fri | 48 | 85% |
| Sat | 43 | 81% |
| Sun | 48 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…