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.
FRONTIER · FLIGHT F9 2871
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2
F9 2871 · SJU → ATL
departs 5:15 PM AT · arrives 9:24 PM ET
Forecast issued Fri 10:00 PM ET · 5h after departure
Watch this flight
Other days
Fri 10/2
Today 51%
Mon 10/5 41%
Tue 10/6 28%
Wed 10/7 16%
Thu 10/8 35%
Fri 10/9 42%
Sat 10/10 42%
Odds over time
Arrive at ATL more than 15 minutes late?
37%
chance · ±0 pts
−4 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
37%
Leave 15+ late
38%
Arrive 1h+ late
11%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
3.8d
2d
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 37% · changed −4 pts in 24h
−4 pts
37%
Yes 37%
No 63%
Leave SJU more than 15 minutes late?
Calm-weather odds: 37% · changed +0 pts in 24h
+0 pts
38%
Yes 38%
No 62%
Arrive at ATL more than an hour late?
Calm-weather odds: 12% · changed −1 pt in 24h
−1 pt
11%
Yes 11%
No 89%
Cancelled?
Calm-weather odds: 1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to ATL?
On time or early
62%
15–30 min late
14%
30 min–1 hour late
12%
1–2 hours late
6%
Over 2 hours late
4%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
F9's recent on-time record
↑
This flight has been late 44% of the time recently
↑
Arrivals into ATL at that hour are often late
↓
Cloud base down to 600 ft forecast at ATL that day
↓
Fridays in October are usually quieter than average
Weather at each end
SJU (origin)
Gusts 22 kt Ceiling none (clear) Visibility 10+ mi Precip none
ATL (destination)
Gusts 8 kt Ceiling 600 ft Visibility 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.