Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 27
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Today
WN 27 · HOU → BWI
departs 5:45 PM CT · arrives 10:00 PM ET
Forecast issued Tue 9:00 PM ET · 2h after departure
Watch this flight
Other days
Today
Wed 9/30 34%
Odds over time
Arrive at BWI more than 15 minutes late?
25%
chance · ±1 pts
+7 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
25%
Leave 15+ late
34%
Arrive 1h+ late
5%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at BWI more than 15 minutes late?
Calm-weather odds: 22% · changed +7 pts in 24h
+7 pts
25%
Yes 25%
No 75%
Leave HOU more than 15 minutes late?
Calm-weather odds: 31% · changed +10 pts in 24h
+10 pts
34%
Yes 34%
No 66%
Arrive at BWI more than an hour late?
Calm-weather odds: 4% · changed +1 pt in 24h
+1 pt
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to BWI?
On time or early
74%
15–30 min late
11%
30 min–1 hour late
9%
1–2 hours late
3%
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
↑
5pm departures from HOU are often late
↑
This flight has been late 24% of the time recently
↓
Tuesdays in September are usually quieter than average
↓
Mostly benign weather forecast at BWI
Weather at each end
HOU (origin)
Gusts 26 kt Ceiling none (clear) Visibility 10+ mi Precip 0.01 in
BWI (destination)
Gusts 7 kt Ceiling 3,600 ft Visibility 8.5 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.