Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3345
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
WN 3345 · MEM → MDW
departs 3:20 PM CT · arrives 4:55 PM CT
Forecast issued Fri 1:00 PM ET · 51h before departure
Watch this flight
Other days
Today 38%
Sat 10/3 16%
Sun 10/4
Mon 10/5 18%
Wed 10/7 18%
Odds over time
Arrive at MDW more than 15 minutes late?
19%
chance · ±1 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
19%
Leave 15+ late
24%
Arrive 1h+ late
6%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.8d
Now
1d
12h
6h
Departs
Lands
Arrive at MDW more than 15 minutes late?
Calm-weather odds: 18% · changed – in 24h
–
19%
Yes 19%
No 81%
Leave MEM more than 15 minutes late?
Calm-weather odds: 22% · changed – in 24h
–
24%
Yes 24%
No 76%
Arrive at MDW more than an hour late?
Calm-weather odds: 5% · changed – in 24h
–
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to MDW?
On time or early
80%
15–30 min late
9%
30 min–1 hour late
4%
1–2 hours late
5%
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
↑
Arrivals into MDW at that hour are often late
↑
Later flights pick up delays from earlier in the day
↑
WN's recent on-time record
↓
Mostly benign weather forecast at MDW
↓
Sundays in October are usually quieter than average
Weather at each end
MEM (origin)
Gusts 17 kt Ceiling 200 ft Visibility 8 mi Precip 0.09 in
MDW (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.