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 3100
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4 Tomorrow
DL 3100 · BHM → ATL
departs 9:30 AM CT · arrives 11:34 AM ET
Forecast issued Sat 12:00 AM ET · 34h before departure
Watch this flight
Other days
Today 16%
Sun 10/4
Mon 10/5 7%
Tue 10/6 5%
Wed 10/7 6%
Thu 10/8 5%
Fri 10/9 7%
Odds over time
Arrive at ATL more than 15 minutes late?
19%
chance · ±3 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
19%
Leave 15+ late
18%
Arrive 1h+ late
5%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.5d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 6% · changed −1 pt in 24h
−1 pt
19%
Yes 19%
No 81%
Leave BHM more than 15 minutes late?
Calm-weather odds: 6% · changed +3 pts in 24h
+3 pts
18%
Yes 18%
No 82%
Arrive at ATL more than an hour late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
How late will it get to ATL?
On time or early
79%
15–30 min late
6%
30 min–1 hour late
8%
1–2 hours late
3%
Over 2 hours late
2%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 300 ft, visibility down to 1 mi, 1.4 in of rain forecast at ATL that day
↑
Cloud base down to 300 ft, visibility down to 1 mi, 1.4 in of rain forecast at BHM that day
↑
ATL is busy at that time
↓
9am departures from BHM are usually not late
↓
This flight has been late 8% of the time recently
Weather at each end
BHM (origin)
Gusts 10 kt Ceiling 300 ft Visibility 1 mi Precip 1.44 in
ATL (destination)
Gusts 9 kt Ceiling 300 ft Visibility 1 mi Precip 1.38 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.