Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · connections flying that day

Sun, Oct 11: one nonstop, DL 2515 at 13:40, with a 20% chance of arriving 15+ min late.

Nonstops that day

All 1 nonstop →


DL 2515 Delta Flight history →	SLC 13:40	MEM 17:40	20%	6%	0.9%	85%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	SLC 00:47 → ATL 06:40DL 8770	2h 30m Atlanta	ATL 09:10 → MEM 09:27DL 2071	7h 40m	100%	86%
American Details →	SLC 05:00 → DFW 08:46AA 1214	3h 49m Dallas-Fort Worth	DFW 12:35 → MEM 14:15AA 3888 · flown by Envoy	8h 15m	99%	79%
Delta Details →	SLC 14:00 → MSP 17:32DL 2936	2h 33m Minneapolis	MSP 20:05 → MEM 22:15DL 4035 · flown by SkyWest	7h 15m	95%	78%
Delta Details →	SLC 11:10 → MSP 14:40DL 2924	1h 05m Minneapolis	MSP 15:45 → MEM 17:52DL 4063 · flown by SkyWest	5h 42m	93%	77%
United Details →	SLC 07:00 → DEN 08:42UA 1232	2h 18m Denver	DEN 11:00 → MEM 14:29UA 2789	6h 29m	96%	77%
Delta Details →	SLC 07:00 → ATL 12:44DL 907	3h 56m Atlanta	ATL 16:40 → MEM 17:06DL 1681	9h 06m	100%	77%
Delta Details →	SLC 13:19 → AUS 17:07DL 2689	2h 48m Austin	AUS 19:55 → MEM 21:48DL 3952 · flown by SkyWest	7h 29m	95%	74%
Delta Details →	SLC 08:10 → ATL 13:54DL 897	1h 17m Atlanta	ATL 15:11 → MEM 15:33DL 1700	6h 23m	92%	72%
Tight connection: often missed
Delta Details →	SLC 13:35 → ATL 19:22DL 906	46m Atlanta	ATL 20:08 → MEM 20:32DL 3020	5h 57m	53%	37%
American Details →	SLC 16:52 → DFW 20:39AA 1456	54m Dallas-Fort Worth	DFW 21:33 → MEM 23:17AA 1758	5h 25m	54%	31%
United Details →	SLC 16:15 → ORD 20:32UA 1963	48m Chicago	ORD 21:20 → MEM 23:21UA 2317	6h 06m	0%	0%

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 Sun, Oct 11 (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