Schedule: a typical summer Wednesday (the flights of Jul 29, 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
Wednesday, September 30
F9 1726 · PHL → SJU
departs 10:59 PM ET · arrives 2:59 AM AT
Forecast issued Wed 10:00 PM ET · 1h before departure
Watch this flight
Other days
Wed 9/30
Today 55%
Mon 10/5 38%
Fri 10/9 39%
Odds over time
Arrive at SJU more than 15 minutes late?
30%
chance · ±5 pts
+2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
30%
Leave 15+ late
35%
Arrive 1h+ late
13%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.7d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at SJU more than 15 minutes late?
Calm-weather odds: 30% · changed +2 pts in 24h
+2 pts
30%
Yes 30%
No 70%
Leave PHL more than 15 minutes late?
Calm-weather odds: 35% · changed −2 pts in 24h
−2 pts
35%
Yes 35%
No 65%
Arrive at SJU more than an hour late?
Calm-weather odds: 11% · changed +3 pts in 24h
+3 pts
13%
Yes 13%
No 87%
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
69%
15–30 min late
9%
30 min–1 hour late
8%
1–2 hours late
9%
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 38% of the time recently
↑
Mostly benign weather forecast at SJU
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at PHL
Weather at each end
PHL (origin)
Gusts 8 kt Ceiling 4,500 ft Visibility 10+ mi Precip none
SJU (destination)
Gusts 24 kt Ceiling none (clear) Visibility 10+ mi Precip 0.07 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.