Schedule: the flights that flew on Saturday, Oct 24, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4572
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 31 Tomorrow
WN 4572 · MDW → GRR
departs 6:56 PM CT · arrives 9:01 PM ET
Forecast issued Fri 5:00 PM ET · 27h before departure
Watch this flight
Other days
Today 33%
Sat 10/31
Sun 11/1 35%
Mon 11/2 23%
Tue 11/3 20%
Wed 11/4 28%
Thu 11/5 26%
Odds over time
Arrive at GRR more than 15 minutes late?
26%
chance · ±1 pts
+6 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
26%
Leave 15+ late
35%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.8d
2d
Now
12h
6h
Departs
Lands
Arrive at GRR more than 15 minutes late?
Calm-weather odds: 19% · changed +6 pts in 24h
+6 pts
26%
Yes 26%
No 74%
Leave MDW more than 15 minutes late?
Calm-weather odds: 28% · changed +1 pt in 24h
+1 pt
35%
Yes 35%
No 65%
Arrive at GRR more than an hour late?
Calm-weather odds: 3% · changed +1 pt in 24h
+1 pt
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to GRR?
On time or early
73%
15–30 min late
12%
30 min–1 hour late
10%
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
↑
Later flights pick up delays from earlier in the day
↑
WN's recent on-time record
↑
6pm departures from MDW are often late
↓
GRR usually runs smoothly
↓
Saturdays in October are usually quieter than average
Weather at each end
MDW (origin)
Gusts 11 kt Ceiling 7,000 ft Visibility 10+ mi Precip 0.07 in
GRR (destination)
Gusts 15 kt Ceiling 6,000 ft Visibility 8 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.