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 4320
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2
WN 4320 · SNA → DAL
departs 6:45 AM PT · arrives 11:55 AM CT
Forecast issued Fri 10:00 PM ET · 12h after departure
Watch this flight
Other days
Fri 10/2
Mon 10/5 4%
Fri 10/9 4%
Odds over time
Arrive at DAL more than 15 minutes late?
8%
chance · ±0 pts
−25 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
8%
Leave 15+ late
6%
Arrive 1h+ late
2%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
3.5d
2d
1d
12h
6h
Departs
Lands
Arrive at DAL more than 15 minutes late?
Calm-weather odds: 8% · changed −25 pts in 24h
−25 pts
8%
Yes 8%
No 92%
Leave SNA more than 15 minutes late?
Calm-weather odds: 6% · changed −14 pts in 24h
−14 pts
6%
Yes 6%
No 94%
Arrive at DAL more than an hour late?
Calm-weather odds: 2% · changed −5 pts in 24h
−5 pts
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: 2% · changed −7 pts in 24h
−7 pts
2%
Yes 2%
No 98%
How late will it get to DAL?
On time or early
91%
15–30 min late
3%
30 min–1 hour late
2%
1–2 hours late
1%
Over 2 hours late
<1%
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, 0.4 in of rain forecast at DAL that day
↑
DAL is prone to delays
↑
This flight has been late 20% of the time recently
↓
Early flights usually leave on time
↓
6am departures from SNA are usually not late
Weather at each end
SNA (origin)
Gusts 10 kt Ceiling 300 ft Visibility 5 mi Precip none
DAL (destination)
Gusts 22 kt Ceiling 600 ft Visibility 4 mi Precip 0.24 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.