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

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

Leave before 9 am: 88% depart on time. After 4 pm it’s 3 in 4.

Best time to leave 7–8 am 86% arrive on time from PHL

Best single flight DL 2023 PHL 07:23 → SLC 10:06 · 86% on time Avoid DL 2022 PHL 18:53 → SLC 21:47 · 71% 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).

PHL

% 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 2023	PHL 07:23	SLC 10:06	86%
DL 2022	PHL 18:53	SLC 21:47	71%

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 2023	PHL 07:23	SLC 10:06	4h 43m	364	86%	1.4%	66 min
DL 2022	PHL 18:53	SLC 21:47	4h 54m	154	71%	0.0%	72 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	PHL	SLC	4h 57m	81%	1.2%	598	Flying now

Alternatives with one stop

All connections →


Delta Details →	PHL 05:15 → ATL 07:22DL 1269	53m Atlanta	ATL 08:15 → SLC 10:15DL 830	7h 00m	88%	76%
Delta Details →	PHL 09:46 → DTW 11:31DL 2968	54m Detroit	DTW 12:25 → SLC 14:19DL 935	6h 33m	86%	73%
Delta Details →	PHL 10:40 → ATL 12:54DL 1100	1h 01m Atlanta	ATL 13:55 → SLC 15:51DL 423	7h 13m	88%	73%

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