Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 673
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
WN 673 · BNA → SFO
departs 1:45 PM CT · arrives 4:25 PM PT
Forecast issued Fri 5:00 PM ET · 46h before departure
Watch this flight
Other days
Today 37%
Sat 10/3 35%
Sun 10/4
Mon 10/5 30%
Odds over time
Arrive at SFO more than 15 minutes late?
30%
chance · ±3 pts
−3 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
30%
Leave 15+ late
32%
Arrive 1h+ late
7%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.7d
Now
1d
12h
6h
Departs
Lands
Arrive at SFO more than 15 minutes late?
Calm-weather odds: 19% · changed −3 pts in 24h
−3 pts
30%
Yes 30%
No 70%
Leave BNA more than 15 minutes late?
Calm-weather odds: 28% · changed −4 pts in 24h
−4 pts
32%
Yes 32%
No 68%
Arrive at SFO more than an hour late?
Calm-weather odds: 6% · changed −2 pts in 24h
−2 pts
7%
Yes 7%
No 93%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SFO?
On time or early
70%
15–30 min late
14%
30 min–1 hour late
9%
1–2 hours late
4%
Over 2 hours late
3%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This flight has been late 56% of the time recently
↑
Cloud base down to 800 ft, visibility down to 2 mi forecast at BNA that day
↑
1pm departures from BNA are often late
↓
Mostly benign weather forecast at SFO
↓
BNA usually runs smoothly
Weather at each end
BNA (origin)
Gusts 11 kt Ceiling 800 ft Visibility 2 mi Precip 0.13 in
SFO (destination)
Gusts 13 kt Ceiling none (clear) Visibility 5 mi Precip none
How this resolves
Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.
Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.