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 2777
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4 Today
WN 2777 · BOS → MDW
departs 4:45 PM ET · arrives 6:35 PM CT
Forecast issued Sun 3:00 PM ET · 2h before departure
Watch this flight
Odds over time
Arrive at MDW more than 15 minutes late?
46%
chance · ±0 pts
+10 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
46%
Leave 15+ late
57%
Arrive 1h+ late
10%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
5.8d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at MDW more than 15 minutes late?
Calm-weather odds: 25% · changed +10 pts in 24h
+10 pts
46%
Yes 46%
No 54%
Leave BOS more than 15 minutes late?
Calm-weather odds: 37% · changed +9 pts in 24h
+9 pts
57%
Yes 57%
No 43%
Arrive at MDW more than an hour late?
Calm-weather odds: 6% · changed +1 pt in 24h
+1 pt
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to MDW?
On time or early
54%
15–30 min late
30%
30 min–1 hour late
6%
1–2 hours late
9%
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
↑
4pm departures from BOS are often late
↑
Arrivals into MDW at that hour are often late
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at MDW
↓
Other factors
Weather at each end
BOS (origin)
Gusts 13 kt Ceiling 6,000 ft Visibility 10+ mi Precip none
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.