Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 3039
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
DL 3039 · CHA → ATL
departs 6:45 AM ET · arrives 7:38 AM ET
Forecast issued Fri 12:00 AM ET · 55h before departure
Watch this flight
Other days
Sun 10/4
Thu 10/8 8%
Odds over time
Arrive at ATL more than 15 minutes late?
27%
chance · ±4 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
27%
Leave 15+ late
15%
Arrive 1h+ late
12%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.4d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 9% · changed – in 24h
–
27%
Yes 27%
No 73%
Leave CHA more than 15 minutes late?
Calm-weather odds: 9% · changed – in 24h
–
15%
Yes 15%
No 85%
Arrive at ATL more than an hour late?
Calm-weather odds: 5% · changed – in 24h
–
12%
Yes 12%
No 88%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
2%
Yes 2%
No 98%
How late will it get to ATL?
On time or early
71%
15–30 min late
11%
30 min–1 hour late
4%
1–2 hours late
6%
Over 2 hours late
5%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 600 ft, visibility down to 0.6 mi, 1.6 in of rain forecast at CHA that day
↑
Cloud base down to 300 ft, visibility down to 2 mi, 1.4 in of rain forecast at ATL that day
↑
Other factors
↓
Early flights usually leave on time
↓
This flight has been late 10% of the time recently
Weather at each end
CHA (origin)
Gusts 8 kt Ceiling 600 ft Visibility 0.6 mi Precip 1.57 in
ATL (destination)
Gusts 10 kt Ceiling 300 ft Visibility 2 mi Precip 1.35 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.