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 556
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2
WN 556 · MDW → LGA
departs 5:15 PM CT · arrives 8:20 PM ET
Forecast issued Fri 10:00 PM ET · 4h after departure
Watch this flight
Other days
Fri 10/2
Mon 10/5 46%
Fri 10/9 43%
Odds over time
Arrive at LGA more than 15 minutes late?
64%
chance · ±0 pts
+0 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
64%
Leave 15+ late
52%
Arrive 1h+ late
21%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
25%
50%
75%
100%
3.8d
2d
1d
12h
6h
Departs
Lands
Arrive at LGA more than 15 minutes late?
Calm-weather odds: 64% · changed +0 pts in 24h
+0 pts
64%
Yes 64%
No 36%
Leave MDW more than 15 minutes late?
Calm-weather odds: 52% · changed +0 pts in 24h
+0 pts
52%
Yes 52%
No 48%
Arrive at LGA more than an hour late?
Calm-weather odds: 21% · changed −9 pts in 24h
−9 pts
21%
Yes 21%
No 79%
Cancelled?
Calm-weather odds: 2% · changed −2 pts in 24h
−2 pts
2%
Yes 2%
No 98%
How late will it get to LGA?
On time or early
36%
15–30 min late
20%
30 min–1 hour late
22%
1–2 hours late
17%
Over 2 hours late
4%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Arrivals into LGA at that hour are often late
↑
Later flights pick up delays from earlier in the day
↑
This flight has been late 41% of the time recently
↓
Mostly benign weather forecast at MDW
↓
Mostly benign weather forecast at LGA
Weather at each end
MDW (origin)
Gusts 15 kt Ceiling 900 ft Visibility 7 mi Precip 0.12 in
LGA (destination)
Gusts 25 kt Ceiling 4,900 ft Visibility 10+ mi Precip 0.01 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.