Schedule: the flights that flew on Wednesday, Nov 4, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1937
SCHEDULED · TYPICAL SCHEDULE
Wednesday, November 11
DL 1937 · ATL → SJO
departs 10:00 AM ET · arrives 1:18 PM CST
Forecast issued Sun 3:00 PM ET · 67h before departure
Watch this flight
Other days
Today 20%
Mon 11/9 10%
Tue 11/10 6%
Wed 11/11
Thu 11/12 12%
Fri 11/13 12%
Sat 11/14 14%
Odds over time
Arrive at SJO more than 15 minutes late?
7%
chance · ±1 pts
−4 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
7%
Leave 15+ late
9%
Arrive 1h+ late
2%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
6.4d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at SJO more than 15 minutes late?
Calm-weather odds: 7% · changed −4 pts in 24h
−4 pts
7%
Yes 7%
No 93%
Leave ATL more than 15 minutes late?
Calm-weather odds: 9% · changed −7 pts in 24h
−7 pts
9%
Yes 9%
No 91%
Arrive at SJO more than an hour late?
Calm-weather odds: 2% · 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 SJO?
On time or early
93%
15–30 min late
3%
30 min–1 hour late
2%
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
↑
This flight has been late 21% of the time recently
↑
10am departures from ATL are often late
↑
ATL is busy at that time
↓
Mostly benign weather forecast at ATL
↓
Wednesdays in November are usually quieter than average
Weather at each end
ATL (origin)
Gusts 11 kt Ceiling none (clear) Visibility 10+ mi Precip none
SJO (destination)
Gusts 8 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.