Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 3156
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
DL 3156 · CLT → ATL
departs 8:05 AM ET · arrives 9:19 AM ET
Forecast issued Thu 1:00 AM ET · 55h before departure
Watch this flight
Other days
Today 20%
Fri 10/2 9%
Sat 10/3
Sun 10/4 11%
Mon 10/5 9%
Tue 10/6 9%
Wed 10/7 8%
Odds over time
Arrive at ATL more than 15 minutes late?
15%
chance · ±2 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
15%
Leave 15+ late
10%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.4d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 8% · changed – in 24h
–
15%
Yes 15%
No 85%
Leave CLT more than 15 minutes late?
Calm-weather odds: 8% · changed – in 24h
–
10%
Yes 10%
No 90%
Arrive at ATL more than an hour late?
Calm-weather odds: 2% · changed – in 24h
–
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to ATL?
On time or early
85%
15–30 min late
5%
30 min–1 hour late
6%
1–2 hours late
2%
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
↑
Cloud base down to 300 ft, 0.5 in of rain forecast at ATL that day
↑
Other factors
↑
Arrivals into ATL at that hour are often late
↓
DL's recent on-time record
↓
This flight has been late 10% of the time recently
Weather at each end
CLT (origin)
Gusts 16 kt Ceiling 200 ft Visibility 3 mi Precip 0.41 in
ATL (destination)
Gusts 10 kt Ceiling 3,800 ft Visibility 4 mi Precip 0.46 in
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.