Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 770
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
WN 770 · BNA → STL
departs 4:05 PM CT · arrives 5:25 PM CT
Forecast issued Wed 2:00 PM ET · 3h before departure
Watch this flight
Other days
Today
Thu 10/1 37%
Fri 10/2 33%
Sat 10/3 20%
Mon 10/5 22%
Tue 10/6 17%
Odds over time
Arrive at STL more than 15 minutes late?
20%
chance · ±0 pts
+6 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
20%
Leave 15+ late
29%
Arrive 1h+ late
4%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at STL more than 15 minutes late?
Calm-weather odds: 16% · changed +6 pts in 24h
+6 pts
20%
Yes 20%
No 80%
Leave BNA more than 15 minutes late?
Calm-weather odds: 25% · changed +3 pts in 24h
+3 pts
29%
Yes 29%
No 71%
Arrive at STL more than an hour late?
Calm-weather odds: 3% · changed +1 pt in 24h
+1 pt
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to STL?
On time or early
80%
15–30 min late
11%
30 min–1 hour late
5%
1–2 hours late
3%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
4pm departures from BNA are often late
↑
Later flights pick up delays from earlier in the day
↑
BNA is busy at that time
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at BNA
Weather at each end
BNA (origin)
Gusts 10 kt Ceiling none (clear) Visibility 10+ mi Precip none
STL (destination)
Gusts 14 kt Ceiling 9,000 ft Visibility 10+ 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.