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.
FRONTIER · FLIGHT F9 1166
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
F9 1166 · PHL → SJU
departs 11:55 AM ET · arrives 3:57 PM AT
Forecast issued Fri 10:00 AM ET · 50h before departure
Watch this flight
Other days
Today 53%
Sat 10/3 35%
Sun 10/4
Mon 10/5 41%
Tue 10/6 34%
Wed 10/7 30%
Thu 10/8 36%
Odds over time
Arrive at SJU more than 15 minutes late?
41%
chance · ±3 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
41%
Leave 15+ late
32%
Arrive 1h+ late
14%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.6d
Now
1d
12h
6h
Departs
Lands
Arrive at SJU more than 15 minutes late?
Calm-weather odds: 34% · changed – in 24h
–
41%
Yes 41%
No 59%
Leave PHL more than 15 minutes late?
Calm-weather odds: 28% · changed – in 24h
–
32%
Yes 32%
No 68%
Arrive at SJU more than an hour late?
Calm-weather odds: 10% · changed – in 24h
–
14%
Yes 14%
No 86%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
2%
Yes 2%
No 98%
How late will it get to SJU?
On time or early
58%
15–30 min late
11%
30 min–1 hour late
15%
1–2 hours late
8%
Over 2 hours late
6%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This flight has been late 46% of the time recently
↑
F9's recent on-time record
↑
Cloud base down to 200 ft, visibility down to 1 mi forecast at PHL that day
↓
Sundays in October are usually quieter than average
↓
Early flights usually leave on time
Weather at each end
PHL (origin)
Gusts 12 kt Ceiling 200 ft Visibility 1 mi Precip 0.26 in
SJU (destination)
Gusts 12 kt Ceiling 6,000 ft Visibility 10+ mi Precip 0.09 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.