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 4671
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
WN 4671 · PIT → BWI
departs 9:40 AM ET · arrives 10:50 AM ET
Forecast issued Fri 1:00 PM ET · 45h before departure
Watch this flight
Other days
Today 6%
Sat 10/3 7%
Sun 10/4
Mon 10/5 6%
Wed 10/7 8%
Odds over time
Arrive at BWI more than 15 minutes late?
6%
chance · ±1 pts
+2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
6%
Leave 15+ late
7%
Arrive 1h+ late
3%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
3%
6%
9%
12%
5.5d
Now
1d
12h
6h
Departs
Lands
Arrive at BWI more than 15 minutes late?
Calm-weather odds: 3% · changed +2 pts in 24h
+2 pts
6%
Yes 6%
No 94%
Leave PIT more than 15 minutes late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
7%
Yes 7%
No 93%
Arrive at BWI more than an hour late?
Calm-weather odds: 2% · 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 BWI?
On time or early
93%
15–30 min late
2%
30 min–1 hour late
1%
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 200 ft, visibility down to 1 mi, 0.4 in of rain forecast at BWI that day
↓
Arrivals into BWI at that hour are usually not late
↓
9am departures from PIT are usually not late
Weather at each end
PIT (origin)
Gusts 10 kt Ceiling 4,000 ft Visibility 10+ mi Precip none
BWI (destination)
Gusts 11 kt Ceiling 200 ft Visibility 1 mi Precip 0.42 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.