Sun, Oct 4 has passed, so this is the 12-month record.

1,552 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 96% depart on time. After 4 pm it’s 78%.

Best time to leave 6–7 am 94% arrive on time from SLC

Best single flight DL 2289 SLC 06:00 → DTW 11:23 · 94% on time Avoid DL 2255 SLC 18:28 → DTW 23:13 · 82% 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	1,537	89%	0.1%	62 min
Spirit	15	–	0.0%	–

Dimmed: fewer than 150 flights in the year, too few to rank.

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 2289	SLC 06:00	DTW 11:23	94%
DL 2236	SLC 09:45	DTW 15:14	94%
DL 2244	SLC 13:55	DTW 19:24	88%
DL 2255	SLC 18:28	DTW 23:13	82%

All 6 flights on this route →

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	DTW	3h 29m	89%	0.1%	1,537	Flying now
Spirit	SLC	DTW	3h 26m	100%few flights	0.0%	15	Not 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