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 Denver, leaving 06:10, is the safest bet: 89% chance of reaching Salt Lake City on time; the tightest one-ticket connections make it only 62% of the time.

Nonstops that day

All 1 nonstop →


DL 2137 Delta Flight history →	IND 07:55	SLC 09:26	6%	2%	0.6%	89%

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 Indianapolis). Layovers up to 4 hours. Pick a connection for its 12-month details.


American Details →	IND 06:01 → PHX 06:44AA 1773	1h 55m Phoenix	PHX 08:39 → SLC 11:37AA 6422 · flown by SkyWest	7h 36m	100%	90%
Southwest Details →	IND 05:50 → AUS 07:20WN 2108	1h 55m Austin	AUS 09:15 → SLC 11:00WN 403	7h 10m	100%	90%
Southwest Details →	IND 06:10 → DEN 06:50WN 1365	55m Denver	DEN 07:45 → SLC 09:20WN 452	5h 10m	94%	89%
Southwest Details →	IND 06:45 → MDW 06:55WN 2133	3h 05m Chicago	MDW 10:00 → SLC 12:25WN 2951	7h 40m	99%	88%
Delta Details →	IND 05:55 → ATL 07:30DL 3105	2h 40m Atlanta	ATL 10:10 → SLC 12:10DL 387	8h 15m	99%	88%
United Details →	IND 07:00 → ORD 07:21UA 3661 · flown by Republic	1h 34m Chicago	ORD 08:55 → SLC 11:39UA 1972	6h 39m	100%	87%
Delta Details →	IND 06:55 → ATL 08:36DL 3106	3h 20m Atlanta	ATL 11:56 → SLC 13:50DL 663	8h 55m	100%	86%
Delta Details →	IND 06:45 → BOS 09:10DL 5631 · flown by Republic	2h 05m Boston	BOS 11:15 → SLC 14:20DL 464	9h 35m	100%	86%
Tight connection: often missed
Southwest Details →	IND 19:15 → DEN 20:05WN 1064	50m Denver	DEN 20:55 → SLC 22:40WN 1737	5h 25m	70%	51%
Southwest Details →	IND 21:15 → PHX 22:00WN 2136	50m Phoenix	PHX 22:50 → SLC 01:30 +1WN 849	6h 15m	62%	42%

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