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.
SOUTHWEST · FLIGHT WN 4542
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2
WN 4542 · LGB → MDW
departs 8:15 AM PT · arrives 2:05 PM CT
Forecast issued Fri 10:00 PM ET · 11h after departure
Watch this flight
Other days
Fri 10/2
Mon 10/5 10%
Fri 10/9 10%
Odds over time
Arrive at MDW more than 15 minutes late?
11%
chance · ±0 pts
−15 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
11%
Leave 15+ late
10%
Arrive 1h+ late
2%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
3.6d
2d
1d
12h
6h
Departs
Lands
Arrive at MDW more than 15 minutes late?
Calm-weather odds: 11% · changed −15 pts in 24h
−15 pts
11%
Yes 11%
No 89%
Leave LGB more than 15 minutes late?
Calm-weather odds: 10% · changed −8 pts in 24h
−8 pts
10%
Yes 10%
No 90%
Arrive at MDW more than an hour late?
Calm-weather odds: 2% · changed −4 pts in 24h
−4 pts
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed −11 pts in 24h
−11 pts
<1%
Yes <1%
No 99%
How late will it get to MDW?
On time or early
88%
15–30 min late
6%
30 min–1 hour late
2%
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
↑
Other factors
↓
8am departures from LGB are usually not late
↓
Early flights usually leave on time
Weather at each end
LGB (origin)
Gusts 12 kt Ceiling 900 ft Visibility 5 mi Precip none
MDW (destination)
Gusts 15 kt Ceiling 900 ft Visibility 7 mi Precip 0.12 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.