Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4070
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
WN 4070 · HOU → PIT
departs 7:25 PM CT · arrives 11:15 PM ET
Forecast issued Wed 3:00 PM ET · 5h before departure
Watch this flight
Other days
Today
Tue 10/6 28%
Odds over time
Arrive at PIT more than 15 minutes late?
61%
chance · ±0 pts
+37 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
61%
Leave 15+ late
65%
Arrive 1h+ late
24%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.8d
2d
1d
12h
Now
Departs
Lands
Arrive at PIT more than 15 minutes late?
Calm-weather odds: 17% · changed +37 pts in 24h
+37 pts
61%
Yes 61%
No 39%
Leave HOU more than 15 minutes late?
Calm-weather odds: 24% · changed +37 pts in 24h
+37 pts
65%
Yes 65%
No 35%
Arrive at PIT more than an hour late?
Calm-weather odds: 5% · changed +18 pts in 24h
+18 pts
24%
Yes 24%
No 76%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to PIT?
On time or early
39%
15–30 min late
41%
30 min–1 hour late
0%
1–2 hours late
15%
Over 2 hours late
4%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Later flights pick up delays from earlier in the day
↑
Mostly benign weather forecast at HOU
↑
7pm departures from HOU are often late
↓
Wednesdays in September are usually quieter than average
↓
Cloud base down to 100 ft, visibility down to 0.13 mi forecast at PIT that day
Weather at each end
HOU (origin)
Gusts 20 kt Ceiling 5,000 ft Visibility 10+ mi Precip 0.02 in
PIT (destination)
Gusts 15 kt Ceiling 100 ft Visibility 0.13 mi Precip none
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.