SMF → BOI Southwest Airlines

Southwest Airlines · Sacramento, CA to Boise, ID · 855 flights, 2025-07-01 to 2026-06-30 · aggregated across 44 flight numbers

This route runs much more reliably at some times of day than others — 100% on-time departing 3–6am vs. 63% departing 3–6pm.
On-time arrival
81%
Median delay
-5 min
90th percentile
+30 min
Cancellation rate
0%

How on-time is Southwest Airlines from SMF to BOI?

Across every Southwest Airlines flight number on SMF → BOI (855 flights, 2025-07-01 to 2026-06-30), 81% arrived within 15 minutes of schedule. Median arrival delay -5 min; the worst 10% ran +30 min or later. 0% were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time69681%
16-30 min759%
31-60 min475%
61-120 min304%
2+ hrs71%

Performance by month

MonthFlightsOn-timeAvg delay
2025-078475%+6 min
2025-087485%+0 min
2025-097388%+1 min
2025-105884%+1 min
2025-117576%+19 min
2025-127777%+5 min
2026-016787%-3 min
2026-027080%+0 min
2026-036488%+0 min
2026-046387%-1 min
2026-056782%+2 min
2026-068373%+10 min

Performance by day of week

DayFlightsOn-time
Mon13284%
Tue11983%
Wed11388%
Thu12877%
Fri13374%
Sat9186%
Sun13981%

Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…