Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 623
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Yesterday
WN 623 · BNA → PHL
departs 10:05 AM CT · arrives 1:10 PM ET
Forecast issued Tue 10:00 PM ET · 11h after departure
Watch this flight
Other days
Tue 9/29
Today 17%
Thu 10/1 14%
Fri 10/2 20%
Sat 10/3 12%
Mon 10/5 15%
Tue 10/6 13%
Odds over time
Arrive at PHL more than 15 minutes late?
19%
chance · ±0 pts
+4 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
19%
Leave 15+ late
14%
Arrive 1h+ late
3%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at PHL more than 15 minutes late?
Calm-weather odds: 19% · changed +4 pts in 24h
+4 pts
19%
Yes 19%
No 81%
Leave BNA more than 15 minutes late?
Calm-weather odds: 14% · changed +1 pt in 24h
+1 pt
14%
Yes 14%
No 86%
Arrive at PHL more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to PHL?
On time or early
81%
15–30 min late
11%
30 min–1 hour late
5%
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
↑
This flight has been late 33% of the time recently
↑
PHL is prone to delays
↑
10am departures from BNA are often late
↓
Mostly benign weather forecast at BNA
↓
Tuesdays in September are usually quieter than average
Weather at each end
BNA (origin)
Gusts 5 kt Ceiling none (clear) Visibility 10+ mi Precip none
PHL (destination)
Gusts 17 kt Ceiling 1,500 ft Visibility 10+ 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.