Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
WN 1646 · Denver (DEN) → San Diego (SAN)
Sold by Southwest. Still flying: 16 of the last 56 days (Tue, Wed).
Arrives on time28%within 15 minutes, of 18 flights
Cancelled0.0%of scheduled flights
An hour or more late39%of flights that operated
When late, on average100 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (San Diego is 1 h behind Denver).
- Leaves DEN
- 17:20
- Arrives SAN
- 18:45
- Flight time
- 2h 25m
- Days flown, last 8 weeks
- 16 of 56
Each square is a day, Sat Jun 6 to Fri Jul 31, two weeks per row (each column is the same weekday); filled = flew.
How late it arrives
Share of flights that operated arriving more than this late.
Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.
Its hour at DEN
All flights leaving Denver (DEN) at 5–6 pm, wherever they’re going: 72% left within 15 minutes and 0.8% were cancelled (30,749 flights in the year). Other Southwest flights on this route →
Upcoming forecasts
This flight isn’t in our published forecasts for the next few days.