UA1660 SFO → BWI

United Airlines · San Francisco, CA to Baltimore, MD · 26 flights observed, 2025-09-25 to 2025-10-24 · 2,457 mi

This flight has been getting more reliable recently — 2025-10's on-time rate (100%) is well above the 60% average from earlier months.

UA1660 covers more than one route in the data window — the stats below are for SFO → BWI, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
92%
Median delay
-16 min
90th percentile
+10 min
Cancellation rate
0%

How often is UA1660 on time?

Across 26 flights on SFO → BWI from 2025-09-25 to 2025-10-24, UA1660 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -16 min, and the worst 10% of flights arrived +10 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time2492%
16-30 min28%
31-60 min00%
61-120 min00%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-09560%+2 min
2025-1021100%-16 min

Performance by day of week

DayFlightsOn-time
Mon4100%
Tue4100%
Wed4100%
Thu5100%
Fri580%
SatNo data—
Sun475%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…