Friday, October 9 · typical odds for a Friday (too early for a weather forecast) · issued Sun 4:00 PM ET · connections flying that day

Fri, Oct 9: one nonstop, WN 1375 at 14:25, with a 24% chance of arriving 15+ min late.

Nonstops that day

All 1 nonstop →


WN 1375 Southwest Flight history →	DAL 14:25	ONT 15:25	24%	6%	0.6%	61%

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 2 h behind Dallas). Layovers up to 4 hours. Pick a connection for its 12-month details.


Southwest Details →	DAL 06:00 → PHX 06:30WN 1379	1h 20m Phoenix	PHX 07:50 → ONT 09:05WN 759	5h 05m	100%	93%
Southwest Details →	DAL 06:05 → LAS 06:50WN 1318	2h 15m Las Vegas	LAS 09:05 → ONT 10:10WN 4179	6h 05m	100%	89%
Southwest Details →	DAL 06:00 → DEN 07:00WN 1296	3h 55m Denver	DEN 10:55 → ONT 12:10WN 4080	8h 10m	100%	82%
Southwest Details →	DAL 07:40 → SMF 09:15WN 4218	2h 45m Sacramento	SMF 12:00 → ONT 13:25WN 300	7h 45m	98%	79%
Southwest Details →	DAL 10:00 → BNA 11:50WN 5062	2h 05m Nashville	BNA 13:55 → ONT 16:00WN 855	8h 00m	96%	77%
Southwest Details →	DAL 08:30 → MDW 10:45WN 1356	1h 00m Chicago	MDW 11:45 → ONT 13:50WN 2846	7h 20m	91%	75%
Southwest Details →	DAL 08:45 → LAS 09:35WN 695	2h 10m Las Vegas	LAS 11:45 → ONT 12:45WN 2298	6h 00m	100%	75%
Southwest Details →	DAL 10:25 → PHX 10:55WN 1166	3h 00m Phoenix	PHX 13:55 → ONT 15:05WN 670	6h 40m	100%	71%
Tight connection: often missed
Southwest Details →	DAL 18:20 → DEN 19:50WN 1303	1h 25m Denver	DEN 21:15 → ONT 22:40WN 1663	6h 20m	75%	53%
Southwest Details →	DAL 15:10 → BWI 19:10WN 1283	1h 00m Baltimore	BWI 20:10 → ONT 22:25WN 200	9h 15m	69%	44%
Southwest Details →	DAL 20:30 → LAS 21:15WN 1128	1h 10m Las Vegas	LAS 22:25 → ONT 23:35WN 2135	5h 05m	67%	44%

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