Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1518
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
DL 1518 · ATL → RDU
departs 7:25 PM ET · arrives 8:57 PM ET
Forecast issued Fri 6:00 AM ET · 37h before departure
Watch this flight
Other days
Today 36%
Sat 10/3
Sun 10/4 31%
Mon 10/5 14%
Tue 10/6 9%
Wed 10/7 10%
Thu 10/8 14%
Odds over time
Arrive at RDU more than 15 minutes late?
18%
chance · ±2 pts
−7 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
18%
Leave 15+ late
27%
Arrive 1h+ late
9%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.9d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at RDU more than 15 minutes late?
Calm-weather odds: 10% · changed −7 pts in 24h
−7 pts
18%
Yes 18%
No 82%
Leave ATL more than 15 minutes late?
Calm-weather odds: 12% · changed −10 pts in 24h
−10 pts
27%
Yes 27%
No 73%
Arrive at RDU more than an hour late?
Calm-weather odds: 3% · changed −2 pts in 24h
−2 pts
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to RDU?
On time or early
81%
15–30 min late
4%
30 min–1 hour late
5%
1–2 hours late
7%
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
↑
7pm departures from ATL are often late
↑
Cloud base down to 700 ft forecast at ATL that day
↑
Later flights pick up delays from earlier in the day
↓
DL's recent on-time record
↓
ATL usually runs smoothly
Weather at each end
ATL (origin)
Gusts 8 kt Ceiling 800 ft Visibility 6 mi Precip 0.10 in
RDU (destination)
Gusts 16 kt Ceiling 300 ft Visibility 4 mi Precip 0.15 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.