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

1,322 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s 73%.

Best time to leave 5–6 am 90% arrive on time from IAH

Best single flight DL 1389 IAH 05:20 → DTW 09:11 · 90% on time Avoid DL 1043 IAH 11:32 → DTW 15:20 · 85% 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).

IAH

% 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 1389	IAH 05:20	DTW 09:11	90%
DL 1043	IAH 11:32	DTW 15:20	85%

All 5 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 1389	IAH 05:20	DTW 09:11	2h 51m	365	90%	1.4%	95 min
DL 1043	IAH 11:32	DTW 15:20	2h 48m	266	85%	0.8%	53 min
DL 1307	IAH 15:25	DTW 19:14	2h 49m	31	74%	0.0%	69 min
DL 1865	IAH 15:27	DTW 19:15	2h 48m	48	67%	0.0%	36 min
DL 1529	IAH 19:25	DTW 23:16	2h 51m	140	70%	1.4%	82 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	IAH	DTW	2h 48m	83%	0.8%	1,322	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