Schedule: the flights that flew on Wednesday, Oct 21, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 3937
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 28 Today
F9 3937 · SJU → BDL
departs 3:38 PM AT · arrives 7:44 PM ET
Forecast issued Wed 2:00 AM ET · 14h before departure
Watch this flight
Other days
Today
Fri 10/30 39%
Mon 11/2 45%
Odds over time
Arrive at BDL more than 15 minutes late?
32%
chance · ±1 pts
−1 pt · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
32%
Leave 15+ late
30%
Arrive 1h+ late
9%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.7d
2d
1d
Now
6h
Departs
Lands
Arrive at BDL more than 15 minutes late?
Calm-weather odds: 25% · changed −1 pt in 24h
−1 pt
32%
Yes 32%
No 68%
Leave SJU more than 15 minutes late?
Calm-weather odds: 27% · changed +0 pts in 24h
+0 pts
30%
Yes 30%
No 70%
Arrive at BDL more than an hour late?
Calm-weather odds: 8% · changed −4 pts in 24h
−4 pts
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: 1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to BDL?
On time or early
67%
15–30 min late
13%
30 min–1 hour late
10%
1–2 hours late
4%
Over 2 hours late
5%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
SJU is prone to delays
↑
F9's recent on-time record
↑
BDL is prone to delays
↓
Wednesdays in October are usually quieter than average
↓
Mostly benign weather forecast at BDL
Weather at each end
SJU (origin)
Gusts 13 kt Ceiling 2,000 ft Visibility 10+ mi Precip none
BDL (destination)
Gusts 8 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.