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 2740
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2
WN 2740 · LGA → STL
departs 3:00 PM ET · arrives 5:00 PM CT
Forecast issued Fri 10:00 PM ET · 7h after departure
Watch this flight
Other days
Fri 10/2
Today 26%
Fri 10/9 24%
Odds over time
Arrive at STL more than 15 minutes late?
37%
chance · ±0 pts
−13 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
37%
Leave 15+ late
44%
Arrive 1h+ late
16%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
3.7d
2d
1d
12h
6h
Departs
Lands
Arrive at STL more than 15 minutes late?
Calm-weather odds: 37% · changed −13 pts in 24h
−13 pts
37%
Yes 37%
No 63%
Leave LGA more than 15 minutes late?
Calm-weather odds: 44% · changed −7 pts in 24h
−7 pts
44%
Yes 44%
No 56%
Arrive at STL more than an hour late?
Calm-weather odds: 16% · changed −2 pts in 24h
−2 pts
16%
Yes 16%
No 84%
Cancelled?
Calm-weather odds: 2% · changed −1 pt in 24h
−1 pt
2%
Yes 2%
No 98%
How late will it get to STL?
On time or early
62%
15–30 min late
10%
30 min–1 hour late
10%
1–2 hours late
8%
Over 2 hours late
7%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
0.3 in of rain forecast at LGA that day
↑
LGA is prone to delays
↑
3pm departures from LGA are often late
↓
Other factors
Weather at each end
LGA (origin)
Gusts 25 kt Ceiling 4,900 ft Visibility 10+ mi Precip 0.01 in
STL (destination)
Gusts 20 kt Ceiling 600 ft Visibility 9 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.