1,567 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Delta is clearly ahead here: 92% of its flights arrive on time, 13 points better than Southwest.

Best time to leave 3–4 pm 93% arrive on time from SLC

Best single flight DL 3793 SLC 15:05 → LGB 16:10 · 94% on time Avoid DL 1116 SLC 11:05 → LGB 12:02 · 90% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

SLC

% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

Pick an hour to see this route’s flights leaving then.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.


Delta (incl. SkyWest)	1,089	92%	0.5%	51 min
Southwest	478	79%	0.2%	41 min

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.


DL 3793flown by SkyWest	SLC 15:05	LGB 16:10	94%
DL 1116	SLC 11:05	LGB 12:02	90%

All 7 flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.


WN 543	SLC 08:20	LGB 09:30	2h 10m	34	97%	0.0%	63 min
WN 1092	SLC 10:55	LGB 11:50	1h 55m	16	100%	0.0%	–
DL 1116	SLC 11:05	LGB 12:02	1h 57m	224	90%	1.8%	78 min
DL 3793flown by SkyWest	SLC 15:05	LGB 16:10	2h 05m	359	94%	0.0%	49 min
WN 4983	SLC 19:20	LGB 20:15	1h 55m	26	54%	0.0%	52 min
DL 3124	SLC 20:33	LGB 21:29	1h 56m	55	83%	1.8%	52 min
DL 954	SLC 20:45	LGB 21:43	1h 58m	18	78%	0.0%	40 min

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.


Delta	SLC	LGB	1h 58m	92%	0.5%	1,089	Flying now
Southwest	SLC	LGB	1h 55m	79%	0.2%	478	Flying now

Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON