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 1427
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
DL 1427 · DTW → RDU
departs 7:05 AM ET · arrives 8:48 AM ET
Forecast issued Fri 2:00 PM ET · 41h before departure
Watch this flight
Other days
Today 7%
Sun 10/4
Mon 10/5 5%
Tue 10/6 4%
Wed 10/7 5%
Thu 10/8 5%
Odds over time
Arrive at RDU more than 15 minutes late?
7%
chance · ±1 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
7%
Leave 15+ late
6%
Arrive 1h+ late
3%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
3%
6%
9%
12%
5.4d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at RDU more than 15 minutes late?
Calm-weather odds: 5% · changed −1 pt in 24h
−1 pt
7%
Yes 7%
No 93%
Leave DTW more than 15 minutes late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
Arrive at RDU more than an hour late?
Calm-weather odds: 3% · changed −1 pt in 24h
−1 pt
3%
Yes 3%
No 97%
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
92%
15–30 min late
3%
30 min–1 hour late
<1%
1–2 hours late
2%
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
↑
Cloud base down to 200 ft, visibility down to 1 mi, 1.3 in of rain forecast at RDU that day
↑
Other factors
↓
Mostly benign weather forecast at DTW
↓
Early flights usually leave on time
Weather at each end
DTW (origin)
Gusts 15 kt Ceiling none (clear) Visibility 8 mi Precip none
RDU (destination)
Gusts 8 kt Ceiling 200 ft Visibility 1 mi Precip 1.31 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.