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 1226
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4 Tomorrow
F9 1226 · RDU → SJU
departs 8:23 PM ET · arrives 12:07 AM AT
Forecast issued Sat 9:00 AM ET · 35h before departure
Watch this flight
Odds over time
Arrive at SJU more than 15 minutes late?
37%
chance · ±1 pts
−5 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
37%
Leave 15+ late
44%
Arrive 1h+ late
18%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.9d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at SJU more than 15 minutes late?
Calm-weather odds: 28% · changed −5 pts in 24h
−5 pts
37%
Yes 37%
No 63%
Leave RDU more than 15 minutes late?
Calm-weather odds: 35% · changed −1 pt in 24h
−1 pt
44%
Yes 44%
No 56%
Arrive at SJU more than an hour late?
Calm-weather odds: 13% · changed −3 pts in 24h
−3 pts
18%
Yes 18%
No 82%
Cancelled?
Calm-weather odds: 1% · changed −1 pt in 24h
−1 pt
1%
Yes 1%
No 99%
How late will it get to SJU?
On time or early
62%
15–30 min late
8%
30 min–1 hour late
11%
1–2 hours late
11%
Over 2 hours late
7%
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
↑
Cloud base down to 300 ft, visibility down to 2 mi, 0.5 in of rain forecast at RDU that day
↑
This flight has been late 34% of the time recently
↓
Sundays in October are usually quieter than average
↓
RDU usually runs smoothly
Weather at each end
RDU (origin)
Gusts 8 kt Ceiling 200 ft Visibility 2 mi Precip 0.41 in
SJU (destination)
Gusts 13 kt Ceiling 5,000 ft Visibility 10+ mi Precip 0.06 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.