Flight history · Aug 2025 – Jul 2026 · US DOT on-time records

WN 3657 · San Jose (SJC) → Nashville (BNA)

Sold by Southwest. Still flying: 48 of the last 56 days (Mon, Tue, Wed, Thu, Fri, Sun).

Arrives on time84%within 15 minutes, of 50 flights
Cancelled0.0%of scheduled flights
An hour or more late0%of flights that operated
When late, on average23 minlate, among flights 15+ min late

Schedule

Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Nashville is 2 h ahead of San Jose).

Leaves SJC
09:32
Arrives BNA
15:48
Flight time
4h 15m
Days flown, last 8 weeks
48 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.

15+ min late16%
30+ min late4%
1h+ late0%
2h+ late0%
20%40%60% 015301h1h302h3h

Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.

Its hour at SJC

All flights leaving San Jose (SJC) at 9–10 am, wherever they’re going: 91% left within 15 minutes and 0.7% were cancelled (3,002 flights in the year). Other Southwest flights on this route →

Upcoming forecasts

Our odds that this flight is late or cancelled on the days we publish.