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1,914 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 86% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 7–8 am 93% arrive on time from DTW
Best single flight DL 2868 DTW 08:50 → STL 09:32 · 88% on time Avoid DL 1541 DTW 20:00 → STL 20:39 · 78% 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).

7
8
9
10
11
12
13
14
15
16
17
18
19
20
DTW
94
83
81
70
80
76
63
76
58
% 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
St Louis flights leaving DTW 7–8 am: 1Close ×
WN 1783 DTW 07:00 STL 07:35 1h 35m 50 98% 0.0% 129 min

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 (incl. Endeavor, SkyWest) 1,298 78% 1.3% 71 min
Southwest 597 77% 0.5% 55 min
Spirit 19 – 0.0% 156 min

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 2868 DTW 08:50 STL 09:32 88%
DL 2822 DTW 16:41 STL 17:23 79%
DL 1541 DTW 20:00 STL 20:39 78%
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 DTW STL 1h 42m 78% 1.3% 1,298 Flying now
Southwest DTW STL 1h 40m 77% 0.5% 597 Flying now
Spirit DTW STL 1h 32m 89%few flights 0.0% 19 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