UA5220 SFO → SMF

United Airlines · San Francisco, CA to Sacramento, CA · 362 flights observed, 2025-07-01 to 2026-06-30 · 86 mi

This flight's scheduled flight time has grown by 12 min since 2025-07 — some of the on-time performance may reflect a more generous published schedule, not a faster or more reliable flight.

UA5220 covers more than one route in the data window — the stats below are for SFO → SMF, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
83%
Median delay
-6 min
90th percentile
+36 min
Cancellation rate
2%

How often is UA5220 on time?

Across 362 flights on SFO → SMF from 2025-07-01 to 2026-06-30, UA5220 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +36 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time29383%
16-30 min216%
31-60 min175%
61-120 min103%
2+ hrs123%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073187%0 min
2025-083190%+13 min
2025-093080%+13 min
2025-103190%-5 min
2025-112383%+3 min
2025-122976%+5 min
2026-012857%+29 min
2026-022864%+26 min
2026-033184%-2 min
2026-043087%0 min
2026-053194%+8 min
2026-0630100%-13 min

Performance by day of week

DayFlightsOn-time
Mon5082%
Tue5288%
Wed5188%
Thu4873%
Fri5078%
Sat5186%
Sun5184%

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