WN2631 DEN → SFO

Southwest Airlines · Denver, CO to San Francisco, CA · 31 flights observed, 2025-11-02 to 2026-01-05 · 967 mi

This flight's reliability varies a lot by day of week — 86% on-time on Fridays vs. 50% on Mondays.

WN2631 covers more than one route in the data window — the stats below are for DEN → SFO, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
67%
Median delay
+10 min
90th percentile
+53 min
Cancellation rate
3%

How often is WN2631 on time?

Across 31 flights on DEN → SFO from 2025-11-02 to 2026-01-05, WN2631 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +10 min, and the worst 10% of flights arrived +53 min or later. 3% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2067%
16-30 min310%
31-60 min413%
61-120 min13%
2+ hrs27%

Performance by month

MonthFlightsOn-timeAvg delay
2025-111573%+16 min
2025-121258%+25 min
2026-01367%+43 min

Performance by day of week

DayFlightsOn-time
Mon650%
Tue367%
Wed10%
Thu367%
Fri786%
SatNo data—
Sun1070%

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