Wednesday, October 7 · typical odds for a Wednesday (too early for a weather forecast) · issued Sat 12:00 PM ET · connections flying that day

Wed, Oct 7: one nonstop, WN 1255 at 10:37, with a 10% chance of arriving 15+ min late.

Nonstops that day

All 1 nonstop →


WN 1255 Southwest	DAL 10:37	SLC 12:17	10%	2%	0.6%	no record

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	DAL 06:00 → HOU 07:10WN 1628	2h 19m Houston	HOU 09:29 → SLC 11:29WN 2031	6h 29m	100%	92%
Delta Details →	DAL 06:05 → ATL 09:17DL 516	2h 39m Atlanta	ATL 11:56 → SLC 13:50DL 663	8h 45m	99%	90%
Delta Details →	DAL 12:00 → ATL 15:12DL 441	2h 48m Atlanta	ATL 18:00 → SLC 20:02DL 653	9h 02m	99%	86%
Delta Details →	DAL 15:59 → ATL 19:14DL 512	3h 11m Atlanta	ATL 22:25 → SLC 00:26 +1DL 453	9h 27m	98%	85%
Southwest Details →	DAL 17:01 → MDW 19:18WN 1327	1h 36m Chicago	MDW 20:54 → SLC 23:16WN 2833	7h 15m	91%	71%

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 Wed, Oct 7 (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