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 1324
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
DL 1324 · IAD → ATL
departs 10:21 AM ET · arrives 12:05 PM ET
Forecast issued Fri 2:00 PM ET · 44h before departure
Watch this flight
Other days
Today 8%
Sat 10/3 15%
Sun 10/4
Mon 10/5 10%
Tue 10/6 8%
Wed 10/7 8%
Thu 10/8 7%
Odds over time
Arrive at ATL more than 15 minutes late?
25%
chance · ±3 pts
+2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
25%
Leave 15+ late
13%
Arrive 1h+ late
6%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.5d
Now
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 7% · changed +2 pts in 24h
+2 pts
25%
Yes 25%
No 75%
Leave IAD more than 15 minutes late?
Calm-weather odds: 8% · changed +3 pts in 24h
+3 pts
13%
Yes 13%
No 87%
Arrive at ATL more than an hour late?
Calm-weather odds: 3% · changed +1 pt in 24h
+1 pt
6%
Yes 6%
No 94%
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
73%
15–30 min late
12%
30 min–1 hour late
6%
1–2 hours late
3%
Over 2 hours late
3%
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, 2.1 in of rain forecast at ATL that day
↑
Cloud base down to 200 ft, visibility down to 1 mi, 0.4 in of rain forecast at IAD that day
↑
Other factors
↓
10am departures from IAD are usually not late
↓
Sundays in October are usually quieter than average
Weather at each end
IAD (origin)
Gusts 8 kt Ceiling 200 ft Visibility 1 mi Precip 0.43 in
ATL (destination)
Gusts 11 kt Ceiling 300 ft Visibility 1 mi Precip 2.09 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.