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 4372
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Yesterday
WN 4372 · BNA → BOS
departs 1:30 PM CT · arrives 5:05 PM ET
Forecast issued Wed 10:00 PM ET · 8h after departure
Watch this flight
Other days
Wed 9/30
Today 50%
Fri 10/2 41%
Sat 10/3 30%
Sun 10/4 45%
Mon 10/5 42%
Tue 10/6 28%
Wed 10/7 40%
Odds over time
Arrive at BOS more than 15 minutes late?
39%
chance · ±0 pts
+2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
39%
Leave 15+ late
36%
Arrive 1h+ late
11%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at BOS more than 15 minutes late?
Calm-weather odds: 39% · changed +2 pts in 24h
+2 pts
39%
Yes 39%
No 61%
Leave BNA more than 15 minutes late?
Calm-weather odds: 36% · changed +1 pt in 24h
+1 pt
36%
Yes 36%
No 64%
Arrive at BOS more than an hour late?
Calm-weather odds: 11% · changed +3 pts in 24h
+3 pts
11%
Yes 11%
No 89%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to BOS?
On time or early
61%
15–30 min late
12%
30 min–1 hour late
15%
1–2 hours late
9%
Over 2 hours late
2%
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 34% of the time recently
↑
Arrivals into BOS at that hour are often late
↑
1pm departures from BNA are often late
↓
Wednesdays in September are usually quieter than average
↓
BNA usually runs smoothly
Weather at each end
BNA (origin)
Gusts 15 kt Ceiling none (clear) Visibility 10+ mi Precip none
BOS (destination)
Gusts 8 kt Ceiling 700 ft Visibility 2 mi Precip 0.02 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.