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 4127
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
WN 4127 · MEM → DAL
departs 2:30 PM CT · arrives 3:50 PM CT
Forecast issued Fri 1:00 AM ET · 14h before departure
Watch this flight
Other days
Today
Sat 10/3 42%
Mon 10/5 24%
Tue 10/6 20%
Wed 10/7 18%
Odds over time
Arrive at DAL more than 15 minutes late?
46%
chance · ±5 pts
+1 pt · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
46%
Leave 15+ late
47%
Arrive 1h+ late
16%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
3.7d
2d
1d
Now
6h
Departs
Lands
Arrive at DAL more than 15 minutes late?
Calm-weather odds: 26% · changed +1 pt in 24h
+1 pt
46%
Yes 46%
No 54%
Leave MEM more than 15 minutes late?
Calm-weather odds: 28% · changed −1 pt in 24h
−1 pt
47%
Yes 47%
No 53%
Arrive at DAL more than an hour late?
Calm-weather odds: 5% · changed +1 pt in 24h
+1 pt
16%
Yes 16%
No 84%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
How late will it get to DAL?
On time or early
52%
15–30 min late
13%
30 min–1 hour late
17%
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
↑
Cloud base down to 700 ft, visibility down to 2 mi, 0.9 in of rain forecast at DAL that day
↑
Cloud base down to 667 ft, 0.4 in of rain forecast at MEM that day
↑
DAL is prone to delays
↓
MEM usually runs smoothly
↓
Fridays in October are usually quieter than average
Weather at each end
MEM (origin)
Gusts 17 kt Ceiling 800 ft Visibility 7 mi Precip 0.42 in
DAL (destination)
Gusts 16 kt Ceiling 800 ft Visibility 4 mi Precip 0.83 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.