Schedule: a typical summer Thursday (the flights of Jul 30, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 1726
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Yesterday
F9 1726 · PHL → SJU
departs 10:59 PM ET · arrives 2:59 AM AT
Forecast issued Thu 10:00 PM ET · 1h before departure
Watch this flight
Other days
Thu 10/1
Today 45%
Sat 10/3 33%
Mon 10/5 33%
Tue 10/6 25%
Wed 10/7 26%
Odds over time
Arrive at SJU more than 15 minutes late?
39%
chance · ±3 pts
−2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
39%
Leave 15+ late
42%
Arrive 1h+ late
15%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.7d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at SJU more than 15 minutes late?
Calm-weather odds: 37% · changed −2 pts in 24h
−2 pts
39%
Yes 39%
No 61%
Leave PHL more than 15 minutes late?
Calm-weather odds: 39% · changed +2 pts in 24h
+2 pts
42%
Yes 42%
No 58%
Arrive at SJU more than an hour late?
Calm-weather odds: 14% · changed −1 pt in 24h
−1 pt
15%
Yes 15%
No 85%
Cancelled?
Calm-weather odds: 1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to SJU?
On time or early
60%
15–30 min late
9%
30 min–1 hour late
15%
1–2 hours late
9%
Over 2 hours late
6%
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 38% of the time recently
↑
Later flights pick up delays from earlier in the day
↓
Cloud base down to 900 ft forecast at PHL that day
↓
Thursdays in October are usually quieter than average
Weather at each end
PHL (origin)
Gusts 8 kt Ceiling 900 ft Visibility 10+ mi Precip none
SJU (destination)
Gusts 25 kt Ceiling 3,200 ft Visibility 10+ mi Precip 0.08 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.