Schedule: a typical summer Friday (the flights of Jul 31, 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
Friday, October 2 Yesterday
DL 3100 · BHM → ATL
departs 9:30 AM CT · arrives 11:34 AM ET
Forecast issued Fri 10:00 PM ET · 12h after departure
Watch this flight
Other days
Fri 10/2
Today 20%
Sun 10/4 20%
Mon 10/5 11%
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?
7%
chance · ±0 pts
−17 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
7%
Leave 15+ late
7%
Arrive 1h+ late
3%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
3.5d
2d
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 7% · changed −17 pts in 24h
−17 pts
7%
Yes 7%
No 93%
Leave BHM more than 15 minutes late?
Calm-weather odds: 7% · changed −8 pts in 24h
−8 pts
7%
Yes 7%
No 93%
Arrive at ATL more than an hour late?
Calm-weather odds: 3% · changed −4 pts in 24h
−4 pts
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed −2 pts in 24h
−2 pts
<1%
Yes <1%
No 99%
How late will it get to ATL?
On time or early
92%
15–30 min late
2%
30 min–1 hour late
2%
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
↓
9am departures from BHM are usually not late
↓
Mostly benign weather forecast at BHM
Weather at each end
BHM (origin)
Gusts 8 kt Ceiling 3,700 ft Visibility 10+ mi Precip none
ATL (destination)
Gusts 8 kt Ceiling 600 ft Visibility 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.