UA1259 BWI → SFO

United Airlines · Baltimore, MD to San Francisco, CA · 49 flights observed, 2025-07-01 to 2025-08-18 · 2,457 mi

This flight's reliability varies a lot by day of week — 100% on-time on Mondays vs. 57% on Thursdays.

UA1259 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”.

On-time arrival
88%
Median delay
-12 min
90th percentile
+19 min
Cancellation rate
0%

How often is UA1259 on time?

Across 49 flights on BWI → SFO from 2025-07-01 to 2025-08-18, UA1259 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +19 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time4388%
16-30 min24%
31-60 min12%
61-120 min36%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073190%-7 min
2025-081883%+6 min

Performance by day of week

DayFlightsOn-time
Mon7100%
Tue7100%
Wed7100%
Thu757%
Fri771%
Sat786%
Sun7100%

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