Flight OddsUnited Airlines · San Francisco, CA to Washington, DC · 364 flights observed, 2025-07-01 to 2026-06-30 · 2,442 mi
UA1678 covers more than one route in the data window — the stats below are for SFO → DCA, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA1678 on time?
Across 364 flights on SFO → DCA from 2025-07-01 to 2026-06-30, UA1678 arrived within 15 minutes of schedule 90% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +15 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 | 318 | 90% |
| 16-30 min | 12 | 3% |
| 31-60 min | 11 | 3% |
| 61-120 min | 9 | 3% |
| 2+ hrs | 3 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 25 | 84% | +1 min |
| 2025-08 | 31 | 100% | -8 min |
| 2025-09 | 28 | 75% | +6 min |
| 2025-10 | 31 | 90% | -6 min |
| 2025-11 | 30 | 97% | -11 min |
| 2025-12 | 31 | 90% | -15 min |
| 2026-01 | 30 | 93% | -12 min |
| 2026-02 | 27 | 81% | -8 min |
| 2026-03 | 30 | 93% | -11 min |
| 2026-04 | 30 | 93% | -13 min |
| 2026-05 | 31 | 94% | -11 min |
| 2026-06 | 29 | 86% | -7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 51 | 88% |
| Tue | 51 | 92% |
| Wed | 50 | 84% |
| Thu | 51 | 86% |
| Fri | 49 | 90% |
| Sat | 50 | 94% |
| Sun | 51 | 96% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…