Flight OddsUnited Airlines · Jacksonville, FL to Washington, DC · 280 flights observed, 2025-07-01 to 2026-05-20 · 631 mi
UA1938 covers more than one route in the data window — the stats below are for JAX → IAD, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA1938 on time?
Across 280 flights on JAX → IAD from 2025-07-01 to 2026-05-20, UA1938 arrived within 15 minutes of schedule 91% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +13 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 | 252 | 91% |
| 16-30 min | 6 | 2% |
| 31-60 min | 6 | 2% |
| 61-120 min | 6 | 2% |
| 2+ hrs | 7 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 25 | 68% | +53 min |
| 2025-08 | 28 | 89% | +3 min |
| 2025-09 | 27 | 96% | -14 min |
| 2025-10 | 31 | 97% | -11 min |
| 2025-11 | 25 | 92% | -4 min |
| 2025-12 | 15 | 93% | -10 min |
| 2026-01 | 21 | 90% | -3 min |
| 2026-02 | 24 | 92% | -7 min |
| 2026-03 | 31 | 90% | -5 min |
| 2026-04 | 30 | 97% | -14 min |
| 2026-05 | 20 | 95% | -9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 43 | 88% |
| Tue | 45 | 93% |
| Wed | 45 | 89% |
| Thu | 42 | 90% |
| Fri | 43 | 95% |
| Sat | 21 | 100% |
| Sun | 38 | 84% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…