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 1550
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2
DL 1550 · RDU → ATL
departs 5:25 PM ET · arrives 7:01 PM ET
Forecast issued Fri 10:00 PM ET · 5h after departure
Watch this flight
Other days
Fri 10/2
Today 46%
Mon 10/5 24%
Tue 10/6 6%
Wed 10/7 12%
Thu 10/8 10%
Fri 10/9 16%
Sat 10/10 14%
Odds over time
Arrive at ATL more than 15 minutes late?
16%
chance · ±0 pts
−2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
16%
Leave 15+ late
24%
Arrive 1h+ late
4%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
3.8d
2d
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 15% · changed −2 pts in 24h
−2 pts
16%
Yes 16%
No 84%
Leave RDU more than 15 minutes late?
Calm-weather odds: 24% · changed +0 pts in 24h
+0 pts
24%
Yes 24%
No 76%
Arrive at ATL more than an hour late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
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
84%
15–30 min late
7%
30 min–1 hour late
5%
1–2 hours late
3%
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
↑
Arrivals into ATL at that hour are often late
↑
Later flights pick up delays from earlier in the day
↑
5pm departures from RDU are often late
↓
ATL usually runs smoothly
↓
This flight has been late 17% of the time recently
Weather at each end
RDU (origin)
Gusts 19 kt Ceiling 500 ft Visibility 7 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.