Schedule: the flights that flew on Wednesday, Oct 7, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4370
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 14
WN 4370 · MDW → SLC
departs 10:02 AM CT · arrives 12:15 PM MT
Forecast issued Sun 8:00 PM ET · 63h before departure
Watch this flight
Other days
Today 13%
Mon 10/12 19%
Tue 10/13 16%
Wed 10/14
Thu 10/15 15%
Fri 10/16 12%
Odds over time
Arrive at SLC more than 15 minutes late?
18%
chance · ±3 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
18%
Leave 15+ late
15%
Arrive 1h+ late
2%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.5d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 7% · changed – in 24h
–
18%
Yes 18%
No 82%
Leave MDW more than 15 minutes late?
Calm-weather odds: 11% · changed – in 24h
–
15%
Yes 15%
No 85%
Arrive at SLC more than an hour late?
Calm-weather odds: 1% · changed – in 24h
–
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to SLC?
On time or early
81%
15–30 min late
13%
30 min–1 hour late
3%
1–2 hours late
<1%
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 forecast at MDW that day
↑
This flight has been late 28% of the time recently
↑
Other factors
↓
Wednesdays in October are usually quieter than average
↓
Early flights usually leave on time
Weather at each end
MDW (origin)
Gusts 15 kt Ceiling 200 ft Visibility 4 mi Precip 0.18 in
SLC (destination)
Gusts 11 kt Ceiling 4,600 ft Visibility 10+ mi Precip 0.33 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.