SJC → DEN Southwest Airlines

Southwest Airlines · San Jose, CA to Denver, CO · 1,527 flights, 2025-07-01 to 2026-06-30 · aggregated across 75 flight numbers

This route runs much more reliably at some times of day than others — 95% on-time departing 6–9am vs. 58% departing 3–6pm.
On-time arrival
77%
Median delay
-3 min
90th percentile
+42 min
Cancellation rate
0%

How on-time is Southwest Airlines from SJC to DEN?

Across every Southwest Airlines flight number on SJC → DEN (1,527 flights, 2025-07-01 to 2026-06-30), 77% arrived within 15 minutes of schedule. Median arrival delay -3 min; the worst 10% ran +42 min or later. 0% were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1,16777%
16-30 min1339%
31-60 min1198%
61-120 min695%
2+ hrs282%

Performance by month

MonthFlightsOn-timeAvg delay
2025-0714767%+21 min
2025-0813871%+13 min
2025-0913778%+6 min
2025-1011880%+3 min
2025-1113283%+7 min
2025-1213679%+6 min
2026-0112393%-6 min
2026-0211887%-3 min
2026-0311083%+3 min
2026-0410582%+8 min
2026-0511170%+9 min
2026-0614155%+21 min

Performance by day of week

DayFlightsOn-time
Mon23372%
Tue20784%
Wed20383%
Thu22670%
Fri23372%
Sat18585%
Sun22976%

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