Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4948
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
WN 4948 · MDW → PHL
departs 3:20 PM CT · arrives 6:20 PM ET
Forecast issued Tue 11:00 PM ET · 41h before departure
Watch this flight
Other days
Today 42%
Thu 10/1
Fri 10/2 31%
Sun 10/4 27%
Mon 10/5 23%
Tue 10/6 20%
Odds over time
Arrive at PHL more than 15 minutes late?
41%
chance · ±1 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
41%
Leave 15+ late
34%
Arrive 1h+ late
10%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at PHL more than 15 minutes late?
Calm-weather odds: 18% · changed +0 pts in 24h
+0 pts
41%
Yes 41%
No 59%
Leave MDW more than 15 minutes late?
Calm-weather odds: 27% · changed −1 pt in 24h
−1 pt
34%
Yes 34%
No 66%
Arrive at PHL more than an hour late?
Calm-weather odds: 3% · changed +1 pt in 24h
+1 pt
10%
Yes 10%
No 90%
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
58%
15–30 min late
20%
30 min–1 hour late
11%
1–2 hours late
7%
Over 2 hours late
3%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 300 ft, 0.9 in of rain forecast at MDW that day
↑
WN's recent on-time record
↑
Arrivals into PHL at that hour are often late
↓
Mostly benign weather forecast at PHL
↓
Thursdays in October are usually quieter than average
Weather at each end
MDW (origin)
Gusts 10 kt Ceiling 300 ft Visibility 3 mi Precip 0.94 in
PHL (destination)
Gusts 10 kt Ceiling 9,000 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.