Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 727
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
WN 727 · BOS → BWI
departs 5:45 AM ET · arrives 7:20 AM ET
Forecast issued Thu 10:00 PM ET · 8h before departure
Watch this flight
Other days
Today
Sat 10/3 3%
Sun 10/4 3%
Mon 10/5 4%
Tue 10/6 3%
Wed 10/7 3%
Odds over time
Arrive at BWI more than 15 minutes late?
8%
chance · ±0 pts
+5 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
8%
Leave 15+ late
7%
Arrive 1h+ late
2%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
3%
6%
9%
12%
3.3d
2d
1d
12h
Now
Departs
Lands
Arrive at BWI more than 15 minutes late?
Calm-weather odds: 3% · changed +5 pts in 24h
+5 pts
8%
Yes 8%
No 92%
Leave BOS more than 15 minutes late?
Calm-weather odds: 3% · changed +4 pts in 24h
+4 pts
7%
Yes 7%
No 93%
Arrive at BWI more than an hour late?
Calm-weather odds: <1% · changed +1 pt in 24h
+1 pt
2%
Yes 2%
No 98%
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
91%
15–30 min late
6%
30 min–1 hour late
0%
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
↓
Early flights usually leave on time
↓
5am departures from BOS are usually not late
Weather at each end
BOS (origin)
Gusts 22 kt Ceiling 6,000 ft Visibility 10+ mi Precip 0.05 in
BWI (destination)
Gusts 14 kt Ceiling 2,700 ft Visibility 10+ mi Precip 0.09 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.