Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4791
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 4791 · BNA → SLC
departs 12:10 PM CT · arrives 2:45 PM MT
Forecast issued Fri 11:00 AM ET · 26h before departure
Watch this flight
Other days
Today 52%
Sat 10/3
Sun 10/4 25%
Mon 10/5 24%
Tue 10/6 24%
Wed 10/7 21%
Odds over time
Arrive at SLC more than 15 minutes late?
16%
chance · ±1 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
16%
Leave 15+ late
22%
Arrive 1h+ late
2%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.6d
2d
Now
12h
6h
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 10% · changed +1 pt in 24h
+1 pt
16%
Yes 16%
No 84%
Leave BNA more than 15 minutes late?
Calm-weather odds: 16% · changed −2 pts in 24h
−2 pts
22%
Yes 22%
No 78%
Arrive at SLC more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SLC?
On time or early
83%
15–30 min late
7%
30 min–1 hour late
7%
1–2 hours late
1%
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
↑
This flight has been late 41% of the time recently
↑
12pm departures from BNA are often late
↑
Cloud base down to 500 ft forecast at BNA that day
↓
Mostly benign weather forecast at SLC
↓
BNA usually runs smoothly
Weather at each end
BNA (origin)
Gusts 10 kt Ceiling 500 ft Visibility 6 mi Precip 0.14 in
SLC (destination)
Gusts 10 kt Ceiling none (clear) 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.