Friday, October 9 · typical odds for a Friday (too early for a weather forecast) · issued Mon 12:00 PM ET · connections flying that day

Fri, Oct 9: Southwest via Midway, leaving 08:45, is the safest bet: 74% chance of reaching Salt Lake City on time; the tightest one-ticket connections make it only 72% of the time.

Nonstops that day

All 1 nonstop →


DL 1188 Delta Flight history →	PIT 17:40	SLC 19:49	18%	5%	0.7%	76%

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


Southwest Details →	PIT 05:30 → DEN 06:55WN 3368	3h 10m Denver	DEN 10:05 → SLC 11:45WN 4027	8h 15m	98%	88%
Delta Details →	PIT 05:45 → ATL 07:25DL 1504	2h 45m Atlanta	ATL 10:10 → SLC 12:10DL 387	8h 25m	99%	88%
Delta Details →	PIT 06:00 → BOS 08:00DL 5690 · flown by Republic	3h 15m Boston	BOS 11:15 → SLC 14:20DL 464	10h 20m	100%	86%
Delta Details →	PIT 07:05 → ATL 08:50DL 1383	3h 06m Atlanta	ATL 11:56 → SLC 13:50DL 663	8h 45m	99%	85%
United Details →	PIT 06:15 → IAH 08:18UA 1859	1h 27m Houston	IAH 09:45 → SLC 11:59UA 756	7h 44m	98%	84%
Delta Details →	PIT 07:20 → JFK 09:00DL 5677 · flown by Republic	2h 14m New York	JFK 11:14 → SLC 14:21DL 917	9h 01m	97%	84%
Delta Details →	PIT 11:23 → MSP 12:35DL 845	1h 50m Minneapolis	MSP 14:25 → SLC 16:16DL 2658	6h 53m	94%	83%
United Details →	PIT 08:30 → DEN 09:59UA 1765	1h 41m Denver	DEN 11:40 → SLC 13:13UA 1963	6h 43m	99%	83%
Tight connection: often missed
Southwest Details →	PIT 18:40 → DEN 20:05WN 4072	50m Denver	DEN 20:55 → SLC 22:40WN 1737	6h 00m	72%	52%

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