Flight OddsUnited Airlines · Baltimore, MD to San Francisco, CA · 35 flights observed, 2025-07-01 to 2025-08-18 · 2,457 mi
UA1939 covers more than one route in the data window — the stats below are for BWI → SFO, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA1939 on time?
Across 35 flights on BWI → SFO from 2025-07-01 to 2025-08-18, UA1939 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +20 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 | 30 | 86% |
| 16-30 min | 4 | 11% |
| 31-60 min | 0 | 0% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 22 | 95% | -11 min |
| 2025-08 | 13 | 69% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 71% |
| Tue | 7 | 86% |
| Wed | No data | — |
| Thu | 7 | 86% |
| Fri | 7 | 86% |
| Sat | No data | — |
| Sun | 7 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…