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 2839
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
DL 2839 · DTW → RDU
departs 9:40 PM ET · arrives 11:25 PM ET
Forecast issued Thu 10:00 PM ET · 24h before departure
Watch this flight
Other days
Today
Sat 10/3 14%
Sun 10/4 19%
Mon 10/5 13%
Tue 10/6 10%
Wed 10/7 11%
Odds over time
Arrive at RDU more than 15 minutes late?
15%
chance · ±2 pts
+0 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
15%
Leave 15+ late
20%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.0d
2d
Now
12h
6h
Departs
Lands
Arrive at RDU more than 15 minutes late?
Calm-weather odds: 15% · changed +0 pts in 24h
+0 pts
15%
Yes 15%
No 85%
Leave DTW more than 15 minutes late?
Calm-weather odds: 17% · changed −2 pts in 24h
−2 pts
20%
Yes 20%
No 80%
Arrive at RDU more than an hour late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
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
84%
15–30 min late
3%
30 min–1 hour late
6%
1–2 hours late
5%
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
↑
Later flights pick up delays from earlier in the day
↑
Arrivals into RDU at that hour are often late
↑
9pm departures from DTW are often late
↓
DTW usually runs smoothly
↓
Mostly benign weather forecast at RDU
Weather at each end
DTW (origin)
Gusts 17 kt Ceiling 700 ft Visibility 4 mi Precip 0.89 in
RDU (destination)
Gusts 14 kt Ceiling none (clear) Visibility 10+ 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.