Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3720
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Yesterday
WN 3720 · SRQ → MDW
departs 4:35 PM ET · arrives 6:15 PM CT
Forecast issued Sat 10:00 PM ET · 5h after departure
Watch this flight
Odds over time
Arrive at MDW more than 15 minutes late?
34%
chance · ±0 pts
−1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
34%
Leave 15+ late
27%
Arrive 1h+ late
6%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.8d
2d
1d
12h
6h
Departs
Lands
Arrive at MDW more than 15 minutes late?
Calm-weather odds: 34% · changed −1 pt in 24h
−1 pt
34%
Yes 34%
No 66%
Leave SRQ more than 15 minutes late?
Calm-weather odds: 27% · changed −6 pts in 24h
−6 pts
27%
Yes 27%
No 73%
Arrive at MDW more than an hour late?
Calm-weather odds: 6% · changed −5 pts in 24h
−5 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 MDW?
On time or early
65%
15–30 min late
14%
30 min–1 hour late
14%
1–2 hours late
4%
Over 2 hours late
2%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Thunderstorms forecast at SRQ that day
↑
Arrivals into MDW at that hour are often late
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at MDW
↓
Saturdays in October are usually quieter than average
Weather at each end
SRQ (origin)
Gusts 9 kt Ceiling 3,400 ft Visibility 10+ mi Precip none
MDW (destination)
Gusts 20 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.