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.
SKYWEST · FLIGHT OO 4890
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
OO 4890 · DFW → ACT
departs 9:41 AM CT · arrives 10:40 AM CT
Forecast issued Thu 10:00 PM ET · 61h before departure
Watch this flight
Other days
Today 42%
Sat 10/3 35%
Sun 10/4
Mon 10/5 16%
Tue 10/6 10%
Wed 10/7 10%
Odds over time
Arrive at ACT more than 15 minutes late?
30%
chance · ±4 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
30%
Leave 15+ late
28%
Arrive 1h+ late
10%
Cancelled
3%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.5d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at ACT more than 15 minutes late?
Calm-weather odds: 14% · changed – in 24h
–
30%
Yes 30%
No 70%
Leave DFW more than 15 minutes late?
Calm-weather odds: 21% · changed – in 24h
–
28%
Yes 28%
No 72%
Arrive at ACT more than an hour late?
Calm-weather odds: 6% · changed – in 24h
–
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
3%
Yes 3%
No 97%
How late will it get to ACT?
On time or early
68%
15–30 min late
15%
30 min–1 hour late
4%
1–2 hours late
7%
Over 2 hours late
3%
Cancelled
3%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 700 ft, 0.4 in of rain forecast at ACT that day
↑
9am departures from DFW are often late
↑
Cloud base down to 700 ft forecast at DFW that day
↓
Arrivals into ACT at that hour are usually not late
↓
ACT usually runs smoothly
Weather at each end
DFW (origin)
Gusts 19 kt Ceiling 700 ft Visibility 6 mi Precip 0.08 in
ACT (destination)
Gusts 22 kt Ceiling 700 ft Visibility 5 mi Precip 0.28 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.