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 3377
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
F9 3377 · SJU → MIA
departs 5:30 AM AT · arrives 8:15 AM ET
Forecast issued Fri 10:00 PM ET · 8h before departure
Watch this flight
Other days
Today 15%
Sat 10/3
Sun 10/4 14%
Mon 10/5 16%
Tue 10/6 10%
Wed 10/7 10%
Odds over time
Arrive at MIA more than 15 minutes late?
17%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
17%
Leave 15+ late
18%
Arrive 1h+ late
5%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.3d
2d
1d
12h
Now
Departs
Lands
Arrive at MIA more than 15 minutes late?
Calm-weather odds: 18% · changed +1 pt in 24h
+1 pt
17%
Yes 17%
No 83%
Leave SJU more than 15 minutes late?
Calm-weather odds: 14% · changed +4 pts in 24h
+4 pts
18%
Yes 18%
No 82%
Arrive at MIA more than an hour late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: 1% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
How late will it get to MIA?
On time or early
82%
15–30 min late
5%
30 min–1 hour late
6%
1–2 hours late
2%
Over 2 hours late
4%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
F9's recent on-time record
↑
Other factors
↑
SJU is prone to delays
↓
Early flights usually leave on time
↓
Mostly benign weather forecast at MIA
Weather at each end
SJU (origin)
Gusts 14 kt Ceiling 4,200 ft Visibility 10+ mi Precip 0.01 in
MIA (destination)
Gusts 22 kt Ceiling none (clear) Visibility 10+ 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.