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 4543
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
WN 4543 · DAL → AUS
departs 6:00 AM CT · arrives 7:00 AM CT
Forecast issued Fri 6:00 PM ET · 37h before departure
Watch this flight
Odds over time
Arrive at AUS more than 15 minutes late?
8%
chance · ±0 pts
−2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
8%
Leave 15+ late
6%
Arrive 1h+ late
2%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
5.4d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at AUS more than 15 minutes late?
Calm-weather odds: 3% · changed −2 pts in 24h
−2 pts
8%
Yes 8%
No 92%
Leave DAL more than 15 minutes late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
Arrive at AUS more than an hour late?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
<1%
Yes <1%
No 99%
How late will it get to AUS?
On time or early
92%
15–30 min late
3%
30 min–1 hour late
2%
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
↑
Cloud base down to 1,100 ft forecast at AUS that day
↑
DAL is prone to delays
↑
Cloud base down to 900 ft forecast at DAL that day
↓
Early flights usually leave on time
↓
Arrivals into AUS at that hour are usually not late
Weather at each end
DAL (origin)
Gusts 18 kt Ceiling 800 ft Visibility 7 mi Precip 0.03 in
AUS (destination)
Gusts 24 kt Ceiling 1,100 ft Visibility 10+ mi Precip 0.02 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.