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 Today
DL 1550 · ATL → RDU
departs 2:52 PM ET · arrives 4:20 PM ET
Forecast issued Fri 10:00 AM ET · 5h before departure
Watch this flight
Other days
Today
Sun 10/4 22%
Mon 10/5 10%
Tue 10/6 7%
Wed 10/7 9%
Thu 10/8 9%
Odds over time
Arrive at RDU more than 15 minutes late?
40%
chance · ±0 pts
+23 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
40%
Leave 15+ late
46%
Arrive 1h+ late
15%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
3.7d
2d
1d
12h
Now
Departs
Lands
Arrive at RDU more than 15 minutes late?
Calm-weather odds: 14% · changed +23 pts in 24h
+23 pts
40%
Yes 40%
No 60%
Leave ATL more than 15 minutes late?
Calm-weather odds: 14% · changed +30 pts in 24h
+30 pts
46%
Yes 46%
No 54%
Arrive at RDU more than an hour late?
Calm-weather odds: 2% · changed +12 pts in 24h
+12 pts
15%
Yes 15%
No 85%
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
59%
15–30 min late
32%
30 min–1 hour late
0%
1–2 hours late
7%
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
↑
2pm departures from ATL are often late
↑
Arrivals into RDU at that hour are often late
↑
Later flights pick up delays from earlier in the day
↓
ATL usually runs smoothly
↓
Mostly benign weather forecast at RDU
Weather at each end
ATL (origin)
Gusts 8 kt Ceiling 600 ft Visibility 6 mi Precip none
RDU (destination)
Gusts 14 kt Ceiling 500 ft Visibility 7 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.