Schedule: a typical summer Tuesday (the flights of Jul 28, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4030
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29
WN 4030 · MSY → LGA
departs 9:45 AM CT · arrives 1:40 PM ET
Forecast issued Tue 10:00 PM ET · 11h after departure
Watch this flight
Odds over time
Arrive at LGA more than 15 minutes late?
22%
chance · ±0 pts
−1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
22%
Leave 15+ late
16%
Arrive 1h+ late
3%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at LGA more than 15 minutes late?
Calm-weather odds: 22% · changed −1 pt in 24h
−1 pt
22%
Yes 22%
No 78%
Leave MSY more than 15 minutes late?
Calm-weather odds: 16% · changed +3 pts in 24h
+3 pts
16%
Yes 16%
No 84%
Arrive at LGA more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to LGA?
On time or early
77%
15–30 min late
14%
30 min–1 hour late
5%
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
↑
Arrivals into LGA at that hour are often late
↑
LGA is prone to delays
↑
WN's recent on-time record
↓
Tuesdays in September are usually quieter than average
↓
Mostly benign weather forecast at MSY
Weather at each end
MSY (origin)
Gusts 11 kt Ceiling none (clear) Visibility 10+ mi Precip none
LGA (destination)
Gusts 11 kt Ceiling 1,600 ft 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.