Friday, October 9 · typical odds for a Friday (too early for a weather forecast) · issued Mon 12:00 PM ET · connections flying that day

Fri, Oct 9 looks like a normal day here: all 2 nonstops are 14–18% likely to arrive 15+ min late.

Nonstops that day

All 2 nonstops →


F9 3305 Frontier Flight history →	SJU 06:45	JAX 10:04	14%	7%	1.3%	78%
B6 1742 JetBlue Flight history →	SJU 12:33	JAX 15:47	18%	8%	1.0%	81%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Jacksonville on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival. Layovers up to 4 hours. Pick a connection for its 12-month details.


Southwest Details →	SJU 05:30 → BWI 09:40WN 3717	1h 55m Baltimore	BWI 11:35 → JAX 13:35WN 970	8h 05m	99%	84%
Delta Details →	SJU 06:00 → ATL 09:45DL 1879	2h 52m Atlanta	ATL 12:37 → JAX 13:45DL 3024	7h 45m	100%	84%
American Details →	SJU 00:58 → DFW 05:00AA 2742	2h 10m Dallas-Fort Worth	DFW 07:10 → JAX 10:37AA 1975	9h 39m	98%	83%
United Details →	SJU 02:05 → IAH 06:01UA 2495	1h 34m Houston	IAH 07:35 → JAX 10:56UA 6146 · flown by Mesa	8h 51m	96%	83%
Delta Details →	SJU 07:30 → ATL 11:14DL 1763	2h 43m Atlanta	ATL 13:57 → JAX 15:09DL 2990	7h 39m	99%	81%
Delta Details →	SJU 07:35 → JFK 11:30DL 1854	2h 25m New York	JFK 13:55 → JAX 16:44DL 1035	9h 09m	98%	80%
American Details →	SJU 07:00 → PHL 11:11AA 3063	2h 20m Philadelphia	PHL 13:31 → JAX 15:53AA 5248 · flown by PSA	8h 53m	97%	79%
United Details →	SJU 07:00 → IAH 10:53UA 1644	1h 17m Houston	IAH 12:10 → JAX 15:37UA 4048 · flown by Mesa	8h 37m	95%	78%
Tight connection: often missed
American Details →	SJU 19:14 → MIA 22:05AA 3165	48m Miami	MIA 22:53 → JAX 00:15 +1AA 416	5h 01m	66%	42%

How these are worked out. Each flight’s odds are our forecast for that day (typical odds until the weather forecast covers it); flights of airlines we don’t forecast yet use their 12-month record and are marked. Makes the connection: the first flight’s 12-month lateness curve, scaled so its chance of arriving 15+ min late matches the day’s forecast, at the layover minus the 45-minute minimum (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled × second flight within 15 minutes, each from the day’s forecast.

About this data: forecast odds from our model for Fri, Oct 9 (newest published update); 12-month records from US DOT on-time data, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. JSON