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 3548
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Tomorrow
WN 3548 · BWI → BNA
departs 7:40 PM ET · arrives 8:40 PM CT
Forecast issued Tue 8:00 PM ET · 24h before departure
Watch this flight
Other days
Today 17%
Wed 9/30
Sat 10/3 15%
Odds over time
Arrive at BNA more than 15 minutes late?
21%
chance · ±2 pts
+7 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
21%
Leave 15+ late
36%
Arrive 1h+ late
4%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
Now
12h
6h
Departs
Lands
Arrive at BNA more than 15 minutes late?
Calm-weather odds: 16% · changed +7 pts in 24h
+7 pts
21%
Yes 21%
No 79%
Leave BWI more than 15 minutes late?
Calm-weather odds: 32% · changed +8 pts in 24h
+8 pts
36%
Yes 36%
No 64%
Arrive at BNA more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to BNA?
On time or early
79%
15–30 min late
13%
30 min–1 hour late
4%
1–2 hours late
3%
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
↑
7pm departures from BWI are often late
↑
Later flights pick up delays from earlier in the day
↑
Arrivals into BNA at that hour are often late
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at BWI
Weather at each end
BWI (origin)
Gusts 10 kt Ceiling 9,914 ft Visibility 3 mi Precip none
BNA (destination)
Gusts 11 kt Ceiling none (clear) 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.