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 754
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5 Tomorrow
WN 754 · BOS → STL
departs 6:50 PM ET · arrives 8:55 PM CT
Forecast issued Sun 6:00 AM ET · 37h before departure
Watch this flight
Other days
Today 50%
Mon 10/5
Fri 10/9 30%
Odds over time
Arrive at STL more than 15 minutes late?
27%
chance · ±1 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
27%
Leave 15+ late
39%
Arrive 1h+ late
12%
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 STL more than 15 minutes late?
Calm-weather odds: 22% · changed −1 pt in 24h
−1 pt
27%
Yes 27%
No 73%
Leave BOS more than 15 minutes late?
Calm-weather odds: 31% · changed −3 pts in 24h
−3 pts
39%
Yes 39%
No 61%
Arrive at STL more than an hour late?
Calm-weather odds: 6% · changed +2 pts in 24h
+2 pts
12%
Yes 12%
No 88%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to STL?
On time or early
72%
15–30 min late
5%
30 min–1 hour late
10%
1–2 hours late
10%
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
↑
Later flights pick up delays from earlier in the day
↑
6pm departures from BOS are often late
↑
Arrivals into STL at that hour are often late
↓
Mostly benign weather forecast at STL
↓
Mondays in October are usually quieter than average
Weather at each end
BOS (origin)
Gusts 25 kt Ceiling 300 ft Visibility 6.33333 mi Precip 0.08 in
STL (destination)
Gusts 9 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.