Schedule: a typical summer Saturday (the flights of Jul 25, 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
Saturday, October 3 Today
F9 2871 · SJU → ATL
departs 5:15 PM AT · arrives 9:24 PM ET
Forecast issued Fri 11:00 PM ET · 18h before departure
Watch this flight
Other days
Today
Sun 10/4 50%
Mon 10/5 38%
Tue 10/6 26%
Wed 10/7 16%
Thu 10/8 35%
Fri 10/9 42%
Odds over time
Arrive at ATL more than 15 minutes late?
41%
chance · ±0 pts
−4 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
41%
Leave 15+ late
42%
Arrive 1h+ late
9%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
4.8d
2d
1d
Now
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 44% · changed −4 pts in 24h
−4 pts
41%
Yes 41%
No 59%
Leave SJU more than 15 minutes late?
Calm-weather odds: 37% · changed +5 pts in 24h
+5 pts
42%
Yes 42%
No 58%
Arrive at ATL more than an hour late?
Calm-weather odds: 10% · changed −1 pt in 24h
−1 pt
9%
Yes 9%
No 91%
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
58%
15–30 min late
15%
30 min–1 hour late
17%
1–2 hours late
5%
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
↑
This flight has been late 44% of the time recently
↑
F9's recent on-time record
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at SJU
↓
Saturdays in October are usually quieter than average
Weather at each end
SJU (origin)
Gusts 14 kt Ceiling 4,200 ft Visibility 10+ mi Precip 0.01 in
ATL (destination)
Gusts 8 kt Ceiling 300 ft Visibility 1 mi Precip 0.05 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.