Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 437
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5 Tomorrow
WN 437 · BHM → DEN
departs 5:15 PM CT · arrives 7:05 PM MT
Forecast issued Sun 7:00 AM ET · 35h before departure
Watch this flight
Other days
Mon 10/5
Fri 10/9 35%
Odds over time
Arrive at DEN more than 15 minutes late?
28%
chance · ±4 pts
+2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
28%
Leave 15+ late
28%
Arrive 1h+ late
4%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 26% · changed +2 pts in 24h
+2 pts
28%
Yes 28%
No 72%
Leave BHM more than 15 minutes late?
Calm-weather odds: 26% · changed +0 pts in 24h
+0 pts
28%
Yes 28%
No 72%
Arrive at DEN 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 DEN?
On time or early
72%
15–30 min late
17%
30 min–1 hour late
7%
1–2 hours late
2%
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
↑
Arrivals into DEN at that hour are often late
↑
Later flights pick up delays from earlier in the day
↑
5pm departures from BHM are often late
↓
Mondays in October are usually quieter than average
↓
Mostly benign weather forecast at DEN
Weather at each end
BHM (origin)
Gusts 15 kt Ceiling 700 ft Visibility 7 mi Precip 0.03 in
DEN (destination)
Gusts 18 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.