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.
DELTA · FLIGHT DL 2356
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
DL 2356 · JAX → ATL
departs 11:48 AM ET · arrives 1:03 PM ET
Forecast issued Wed 1:00 PM ET · 1h after departure
Watch this flight
Other days
Today
Thu 10/1 9%
Fri 10/2 12%
Sat 10/3 9%
Sun 10/4 10%
Mon 10/5 8%
Tue 10/6 9%
Odds over time
Arrive at ATL more than 15 minutes late?
13%
chance · ±0 pts
+5 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
13%
Leave 15+ late
9%
Arrive 1h+ late
2%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 13% · changed +5 pts in 24h
+5 pts
13%
Yes 13%
No 87%
Leave JAX more than 15 minutes late?
Calm-weather odds: 9% · changed +3 pts in 24h
+3 pts
9%
Yes 9%
No 91%
Arrive at ATL 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 ATL?
On time or early
87%
15–30 min late
7%
30 min–1 hour late
3%
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
↑
Other factors
↑
ATL is busy at that time
↑
Arrivals into ATL at that hour are often late
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at JAX
Weather at each end
JAX (origin)
Gusts 14 kt Ceiling 10,000 ft Visibility 8 mi Precip none
ATL (destination)
Gusts 10 kt Ceiling 200 ft Visibility 0.5 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.