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

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

No clear winner: Delta’s SLC → PHL flights land within a few points of 84% on time whatever the hour.

Best time to leave 5–6 pm 89% arrive on time from SLC

Best single flight DL 2022 SLC 11:20 → PHL 17:39 · 86% on time Avoid DL 2075 SLC 23:59 → PHL 06:12 · 83% 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.

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 2022	SLC 11:20	PHL 17:39	86%
DL 2075	SLC 23:59	PHL 06:12	83%

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 2022	SLC 11:20	PHL 17:39	4h 20m	322	86%	0.3%	63 min
DL 2075	SLC 23:59	PHL 06:12	4h 12m	252	83%	1.6%	46 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	PHL	4h 12m	84%	1.0%	598	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