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 1121
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
WN 1121 · MHT → BWI
departs 11:30 AM ET · arrives 1:10 PM ET
Forecast issued Fri 1:00 PM ET · 2h after departure
Watch this flight
Other days
Today
Mon 10/5 6%
Wed 10/7 6%
Odds over time
Arrive at BWI more than 15 minutes late?
7%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
7%
Leave 15+ late
14%
Arrive 1h+ late
3%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
3.6d
2d
1d
12h
6h
Departs
Lands
Arrive at BWI more than 15 minutes late?
Calm-weather odds: 6% · changed +1 pt in 24h
+1 pt
7%
Yes 7%
No 93%
Leave MHT more than 15 minutes late?
Calm-weather odds: 13% · changed −1 pt in 24h
−1 pt
14%
Yes 14%
No 86%
Arrive at BWI more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
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
92%
15–30 min late
1%
30 min–1 hour late
3%
1–2 hours late
2%
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
↓
11am departures from MHT are usually not late
↓
Other factors
Weather at each end
MHT (origin)
Gusts 16 kt Ceiling 7,000 ft Visibility 10+ mi Precip 0.02 in
BWI (destination)
Gusts 15 kt Ceiling 6,000 ft Visibility 10+ mi Precip 0.02 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.