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 1666
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
DL 1666 · MEM → ATL
departs 5:15 AM CT · arrives 7:34 AM ET
Forecast issued Fri 2:00 PM ET · 8h after departure
Watch this flight
Other days
Today
Sat 10/3 5%
Sun 10/4 8%
Mon 10/5 4%
Tue 10/6 4%
Wed 10/7 4%
Thu 10/8 4%
Odds over time
Arrive at ATL more than 15 minutes late?
6%
chance · ±1 pts
+1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
6%
Leave 15+ late
5%
Arrive 1h+ late
2%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
3.3d
2d
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 5% · changed +1 pt in 24h
+1 pt
6%
Yes 6%
No 94%
Leave MEM more than 15 minutes late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
5%
Yes 5%
No 95%
Arrive at ATL more than an hour late?
Calm-weather odds: 2% · changed −1 pt in 24h
−1 pt
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to ATL?
On time or early
93%
15–30 min late
2%
30 min–1 hour late
2%
1–2 hours late
<1%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 667 ft, 0.5 in of rain forecast at MEM that day
↑
Other factors
↓
Early flights usually leave on time
↓
5am departures from MEM are usually not late
Weather at each end
MEM (origin)
Gusts 17 kt Ceiling 1,100 ft Visibility 1 mi Precip 2.30 in
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.