Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 3121
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
DL 3121 · ATL → BNA
departs 11:00 PM ET · arrives 11:15 PM CT
Forecast issued Wed 9:00 PM ET · 26h before departure
Watch this flight
Other days
Today 35%
Thu 10/1
Fri 10/2 20%
Sat 10/3 11%
Sun 10/4 17%
Mon 10/5 13%
Tue 10/6 9%
Odds over time
Arrive at BNA more than 15 minutes late?
17%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
17%
Leave 15+ late
22%
Arrive 1h+ late
5%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
Now
12h
6h
Departs
Lands
Arrive at BNA more than 15 minutes late?
Calm-weather odds: 17% · changed +1 pt in 24h
+1 pt
17%
Yes 17%
No 83%
Leave ATL more than 15 minutes late?
Calm-weather odds: 19% · changed +4 pts in 24h
+4 pts
22%
Yes 22%
No 78%
Arrive at BNA more than an hour late?
Calm-weather odds: 3% · changed +1 pt in 24h
+1 pt
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to BNA?
On time or early
82%
15–30 min late
8%
30 min–1 hour late
5%
1–2 hours late
4%
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
↑
Later flights pick up delays from earlier in the day
↑
Arrivals into BNA at that hour are often late
↑
11pm departures from ATL are often late
↓
Mostly benign weather forecast at ATL
↓
ATL usually runs smoothly
Weather at each end
ATL (origin)
Gusts 13 kt Ceiling none (clear) Visibility 10+ mi Precip none
BNA (destination)
Gusts 16 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.