Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · connections flying that day

Sun, Oct 11: Delta via Atlanta, leaving 06:00, is the safest bet: 75% chance of reaching Ontario on time; the tightest one-ticket connections make it only 54% of the time.

Nonstops that day

All 1 nonstop →


B6 355 JetBlue Flight history →	JFK 17:39	ONT 20:37	34%	11%	0.8%	62%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Ontario on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Ontario is 3 h behind New York). Layovers up to 4 hours. Pick a connection for its 12-month details.


Delta Details →	JFK 06:00 → SLC 09:03DL 892	2h 14m Salt Lake City	SLC 11:17 → ONT 12:16DL 1173	9h 16m	99%	87%
Alaska Details →	JFK 10:04 → PDX 13:05AS 19	1h 25m Portland	PDX 14:30 → ONT 16:52AS 2093 · flown by Horizon	9h 48m	94%	85%
Delta Details →	JFK 06:00 → ATL 08:29DL 2286	52m Atlanta	ATL 09:21 → ONT 10:38DL 665	7h 38m	89%	75%
American Details →	JFK 07:02 → PHX 09:18AA 2369	1h 22m Phoenix	PHX 10:40 → ONT 12:06AA 2661	8h 04m	91%	71%
Delta Details →	JFK 16:27 → SLC 19:55DL 887	3h 04m Salt Lake City	SLC 22:59 → ONT 23:48DL 1614	10h 21m	95%	68%
American Details →	JFK 08:15 → DFW 11:11AA 2234	1h 03m Dallas-Fort Worth	DFW 12:14 → ONT 13:32AA 2635	8h 17m	89%	64%
Delta Details →	JFK 11:00 → ATL 13:33DL 1029	3h 32m Atlanta	ATL 17:05 → ONT 18:30DL 2891	10h 30m	97%	63%
American Details →	JFK 12:29 → PHX 14:43AA 2829	2h 11m Phoenix	PHX 16:54 → ONT 18:20AA 1666	8h 51m	96%	59%
Tight connection: often missed
Delta Details →	JFK 18:29 → SLC 22:08DL 863	51m Salt Lake City	SLC 22:59 → ONT 23:48DL 1614	8h 19m	54%	39%
American Details →	JFK 18:51 → DFW 21:36AA 606	1h 03m Dallas-Fort Worth	DFW 22:39 → ONT 23:55AA 1695	8h 04m	64%	35%

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 Sun, Oct 11 (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