Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3370
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
WN 3370 · BWI → IND
departs 9:20 PM ET · arrives 11:15 PM ET
Forecast issued Wed 4:00 AM ET · 17h before departure
Watch this flight
Other days
Today
Tue 10/6 16%
Odds over time
Arrive at IND more than 15 minutes late?
15%
chance · ±0 pts
+0 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
15%
Leave 15+ late
31%
Arrive 1h+ late
4%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
1d
Now
12h
6h
Departs
Lands
Arrive at IND more than 15 minutes late?
Calm-weather odds: 16% · changed +0 pts in 24h
+0 pts
15%
Yes 15%
No 85%
Leave BWI more than 15 minutes late?
Calm-weather odds: 30% · changed +0 pts in 24h
+0 pts
31%
Yes 31%
No 69%
Arrive at IND more than an hour late?
Calm-weather odds: 4% · 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 100%
How late will it get to IND?
On time or early
84%
15–30 min late
4%
30 min–1 hour late
7%
1–2 hours late
3%
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
↑
Later flights pick up delays from earlier in the day
↑
WN's recent on-time record
↑
9pm departures from BWI are often late
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at BWI
Weather at each end
BWI (origin)
Gusts 10 kt Ceiling 6,000 ft Visibility 10+ mi Precip none
IND (destination)
Gusts 13 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.