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 997
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
WN 997 · BWI → MDW
departs 5:45 PM ET · arrives 6:50 PM CT
Forecast issued Fri 6:00 PM ET · 48h before departure
Watch this flight
Other days
Today 30%
Sun 10/4
Mon 10/5 18%
Odds over time
Arrive at MDW more than 15 minutes late?
45%
chance · ±3 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
45%
Leave 15+ late
58%
Arrive 1h+ late
10%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.8d
Now
1d
12h
6h
Departs
Lands
Arrive at MDW more than 15 minutes late?
Calm-weather odds: 22% · changed −1 pt in 24h
−1 pt
45%
Yes 45%
No 55%
Leave BWI more than 15 minutes late?
Calm-weather odds: 35% · changed +3 pts in 24h
+3 pts
58%
Yes 58%
No 42%
Arrive at MDW more than an hour late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to MDW?
On time or early
55%
15–30 min late
19%
30 min–1 hour late
14%
1–2 hours late
8%
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
↑
Cloud base down to 200 ft, visibility down to 1 mi, 0.4 in of rain forecast at BWI that day
↑
5pm departures from BWI are often late
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at MDW
↓
Sundays in October are usually quieter than average
Weather at each end
BWI (origin)
Gusts 12 kt Ceiling 200 ft Visibility 1 mi Precip 0.38 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.