Showing Delta only (incl. its regional partners)All airlines ×

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

No clear winner: Delta’s GJT → SLC flights land within a few points of 95% on time whatever the hour.

Best time to leave 5–6 am 98% arrive on time from GJT

Best single flight DL 4230 GJT 07:34 → SLC 08:45 · 97% on time Avoid DL 4246 GJT 18:50 → SLC 20:00 · 91% 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).

GJT

% 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.

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 4230flown by SkyWest	GJT 07:34	SLC 08:45	97%
DL 4246flown by SkyWest	GJT 18:50	SLC 20:00	91%

All 2 Delta 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.


DL 4230flown by SkyWest	GJT 07:34	SLC 08:45	1h 12m	365	97%	0.0%	138 min
DL 4246flown by SkyWest	GJT 18:50	SLC 20:00	1h 10m	218	91%	0.0%	48 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	GJT	SLC	1h 12m	95%	0.0%	583	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