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2,798 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 72%.

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 F9 1958 IAH 14:54 → DTW 18:49 · 69% 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).

5
6
7
8
9
10
11
12
13
14
15
16
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18
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20
IAH
92
90
85
87
77
88
84
79
84
77
80
68
71
% 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 1,322 83% 0.8% 74 min
United (incl. SkyWest, Mesa) 967 82% 0.3% 59 min
Spirit 357 77% 2.8% 80 min
Frontier 152 69% 1.3% 78 min

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%
UA 685 IAH 18:30 DTW 22:24 71%
F9 1958 IAH 14:54 DTW 18:49 69%
All 10 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 IAH DTW 2h 48m 83% 0.8% 1,322 Flying now
United IAH DTW 2h 57m 82% 0.3% 967 Flying now
Frontier IAH DTW 2h 55m 69% 1.3% 152 Flying now
Spirit IAH DTW 2h 45m 77% 2.8% 357 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