Saturday, October 10 · typical odds for a Saturday (too early for a weather forecast) · issued Sun 8:00 PM ET · connections flying that day

Sat, Oct 10 looks like a normal day here: all 2 nonstops are 7–12% likely to arrive 15+ min late.

Nonstops that day

All 2 nonstops →


DL 2363 Delta Flight history →	STL 08:00	SLC 10:12	7%	2%	0.5%	91%
DL 1492 Delta Flight history →	STL 17:00	SLC 19:09	12%	4%	0.5%	84%

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


Delta Details →	STL 06:00 → ATL 08:38DL 1524	1h 32m Atlanta	ATL 10:10 → SLC 12:10DL 387	7h 10m	98%	85%
Delta Details →	STL 06:30 → DTW 09:04DL 1626	3h 16m Detroit	DTW 12:20 → SLC 14:11DL 935	8h 41m	98%	81%
Delta Details →	STL 08:00 → ATL 10:35DL 1536	3h 20m Atlanta	ATL 13:55 → SLC 15:51DL 423	8h 51m	98%	80%
Delta Details →	STL 13:15 → ATL 16:01DL 566	1h 54m Atlanta	ATL 17:55 → SLC 19:56DL 653	7h 41m	98%	80%
Delta Details →	STL 10:16 → ATL 12:54DL 1400	2h 26m Atlanta	ATL 15:20 → SLC 17:18DL 526	8h 02m	98%	79%
United Details →	STL 09:06 → DEN 10:30UA 2459	3h 20m Denver	DEN 13:50 → SLC 15:23UA 1840	7h 17m	98%	78%
Delta Details →	STL 16:09 → DTW 18:47DL 1371	1h 33m Detroit	DTW 20:20 → SLC 22:15DL 2117	7h 06m	93%	77%
Delta Details →	STL 15:39 → ATL 18:25DL 2700	4h 00m Atlanta	ATL 22:25 → SLC 00:26 +1DL 453	9h 47m	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 Sat, Oct 10 (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