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 452 at 09:55, with a 15% chance of arriving 15+ min late.

Nonstops that day

All 1 nonstop →


WN 452 Southwest Flight history →	SLC 09:55	HOU 14:00	15%	3%	1.2%	69%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	SLC 05:00 → DAL 08:30WN 1725	2h 00m Dallas	DAL 10:30 → HOU 11:45WN 23	5h 45m	100%	86%
Southwest Details →	SLC 06:15 → PHX 06:55WN 3751	1h 10m Phoenix	PHX 08:05 → HOU 12:40WN 2833	5h 25m	99%	85%
Southwest Details →	SLC 05:35 → DEN 07:00WN 3737	3h 15m Denver	DEN 10:15 → HOU 13:55WN 1543	7h 20m	100%	84%
Southwest Details →	SLC 06:30 → LAS 06:55WN 4205	50m Las Vegas	LAS 07:45 → HOU 12:55WN 981	5h 25m	93%	82%
Delta Details →	SLC 07:00 → ATL 12:44DL 907	2h 28m Atlanta	ATL 15:12 → HOU 16:22DL 2381	8h 22m	99%	79%
American Details →	SLC 05:00 → DFW 08:46AA 1214	2h 05m Dallas-Fort Worth	DFW 10:51 → HOU 12:16AA 6413 · flown by SkyWest	6h 16m	99%	79%
Southwest Details →	SLC 07:25 → DEN 08:55WN 3738	3h 35m Denver	DEN 12:30 → HOU 16:05WN 1544	7h 40m	100%	78%
Delta Details →	SLC 11:05 → ATL 16:49DL 885	3h 56m Atlanta	ATL 20:45 → HOU 21:51DL 2051	9h 46m	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