Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1339
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
WN 1339 · DAL → MEM
departs 12:20 PM CT · arrives 1:45 PM CT
Forecast issued Fri 10:00 AM ET · 51h before departure
Watch this flight
Odds over time
Arrive at MEM more than 15 minutes late?
27%
chance · ±1 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
27%
Leave 15+ late
31%
Arrive 1h+ late
7%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.6d
Now
1d
12h
6h
Departs
Lands
Arrive at MEM more than 15 minutes late?
Calm-weather odds: 15% · changed – in 24h
–
27%
Yes 27%
No 73%
Leave DAL more than 15 minutes late?
Calm-weather odds: 21% · changed – in 24h
–
31%
Yes 31%
No 69%
Arrive at MEM more than an hour late?
Calm-weather odds: 3% · changed – in 24h
–
7%
Yes 7%
No 93%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to MEM?
On time or early
72%
15–30 min late
9%
30 min–1 hour late
11%
1–2 hours late
5%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
12pm departures from DAL are often late
↑
This flight has been late 39% of the time recently
↑
Other factors
↓
Arrivals into MEM at that hour are usually not late
↓
Sundays in October are usually quieter than average
Weather at each end
DAL (origin)
Gusts 18 kt Ceiling 600 ft Visibility 10+ mi Precip 0.07 in
MEM (destination)
Gusts 17 kt Ceiling 400 ft Visibility 10+ mi Precip 0.09 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.