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 3150
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
DL 3150 · ATL → CHA
departs 6:40 PM ET · arrives 7:33 PM ET
Forecast issued Wed 11:00 AM ET · 8h before departure
Watch this flight
Other days
Today
Thu 10/1 19%
Fri 10/2 20%
Sat 10/3 15%
Sun 10/4 20%
Mon 10/5 14%
Tue 10/6 12%
Odds over time
Arrive at CHA more than 15 minutes late?
16%
chance · ±0 pts
+2 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
16%
Leave 15+ late
21%
Arrive 1h+ late
4%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
1d
12h
Now
6h
Departs
Lands
Arrive at CHA more than 15 minutes late?
Calm-weather odds: 15% · changed +2 pts in 24h
+2 pts
16%
Yes 16%
No 84%
Leave ATL more than 15 minutes late?
Calm-weather odds: 16% · changed +8 pts in 24h
+8 pts
21%
Yes 21%
No 79%
Arrive at CHA more than an hour late?
Calm-weather odds: 4% · changed +1 pt in 24h
+1 pt
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to CHA?
On time or early
84%
15–30 min late
4%
30 min–1 hour late
7%
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
↑
6pm departures from ATL are often late
↑
ATL is busy at that time
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at CHA
Weather at each end
ATL (origin)
Gusts 10 kt Ceiling 200 ft Visibility 0.5 mi Precip none
CHA (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.