UA5644 SFO → BOI

United Airlines · San Francisco, CA to Boise, ID · 231 flights observed, 2025-07-01 to 2026-06-29 · 522 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -10 min, while the worst 10% run +66 min or later.

UA5644 covers more than one route in the data window — the stats below are for SFO → BOI, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
77%
Median delay
-10 min
90th percentile
+66 min
Cancellation rate
0%

How often is UA5644 on time?

Across 231 flights on SFO → BOI from 2025-07-01 to 2026-06-29, UA5644 arrived within 15 minutes of schedule 77% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +66 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time17677%
16-30 min146%
31-60 min157%
61-120 min136%
2+ hrs125%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073171%+11 min
2025-081867%+18 min
2025-121242%+50 min
2026-013171%+22 min
2026-022886%-1 min
2026-0331100%-19 min
2026-041989%-1 min
2026-053171%+11 min
2026-062972%+35 min

Performance by day of week

DayFlightsOn-time
Mon3560%
Tue3087%
Wed2986%
Thu3574%
Fri3571%
Sat3281%
Sun3479%

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