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: WN 1725 at 05:00 is the safest bet, 3% chance of being 15+ min late; the others run 31%.

Nonstops that day

All 2 nonstops →


WN 1725 Southwest Flight history →	SLC 05:00	DAL 08:30	3%	1%	0.6%	94%
WN 3736 Southwest Flight history →	SLC 19:20	DAL 22:55	31%	8%	0.6%	43%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Dallas on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Dallas is 1 h ahead of Salt Lake City). Layovers up to 4 hours. Pick a connection for its 12-month details.


Southwest Details →	SLC 05:35 → DEN 07:00WN 3737	1h 45m Denver	DEN 08:45 → DAL 11:40WN 1360	5h 05m	100%	91%
Southwest Details →	SLC 06:30 → LAS 06:55WN 4205	55m Las Vegas	LAS 07:50 → DAL 12:40WN 1317	5h 10m	100%	90%
Southwest Details →	SLC 06:15 → PHX 06:55WN 3751	1h 05m Phoenix	PHX 08:00 → DAL 12:25WN 875	5h 10m	98%	87%
Southwest Details →	SLC 06:55 → MDW 10:55WN 3749	1h 25m Chicago	MDW 12:20 → DAL 14:35WN 2757	6h 40m	100%	85%
Southwest Details →	SLC 07:25 → DEN 08:55WN 3738	1h 10m Denver	DEN 10:05 → DAL 13:10WN 1518	4h 45m	96%	83%
Southwest Details →	SLC 06:05 → AUS 09:45WN 4932	2h 25m Austin	AUS 12:10 → DAL 13:15WN 910	6h 10m	100%	82%
Delta Details →	SLC 07:00 → ATL 12:44DL 907	1h 15m Atlanta	ATL 13:59 → DAL 15:03DL 512	7h 03m	97%	81%
Delta Details →	SLC 08:10 → ATL 13:54DL 897	2h 50m Atlanta	ATL 16:44 → DAL 17:54DL 2780	8h 44m	99%	76%

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