UA1259 ATL → SFO

United Airlines · Atlanta, GA to San Francisco, CA · 214 flights observed, 2025-09-25 to 2026-05-19 · 2,139 mi

This flight's scheduled flight time has grown by 14 min since 2025-09 — some of the on-time performance may reflect a more generous published schedule, not a faster or more reliable flight.

UA1259 covers more than one route in the data window — the stats below are for ATL → SFO, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
86%
Median delay
-10 min
90th percentile
+21 min
Cancellation rate
0%

How often is UA1259 on time?

Across 214 flights on ATL → SFO from 2025-09-25 to 2026-05-19, UA1259 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +21 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time18386%
16-30 min178%
31-60 min31%
61-120 min84%
2+ hrs21%

Performance by month

MonthFlightsOn-timeAvg delay
2025-096100%-20 min
2025-103184%+3 min
2025-113080%+1 min
2025-123070%+15 min
2026-013184%-6 min
2026-021191%-14 min
2026-032796%-31 min
2026-043093%-5 min
2026-051794%-16 min

Performance by day of week

DayFlightsOn-time
Mon3184%
Tue3184%
Wed2889%
Thu3197%
Fri3181%
Sat3087%
Sun3181%

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