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1,704 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 93% depart on time. After 4 pm it’s 3 in 5.

Best time to leave 6–7 am 97% arrive on time from STL

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
17
18
19
20
21
STL
92
97
92
94
83
81
80
82
84
65
54
66
55
70
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

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.
Southwest 1,704 81% 1.2% 54 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.

No flight on this route ran 150+ times in the year.

All 10 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.
WN 1008 STL 05:40 MDW 06:45 1h 05m 56 89% 1.8% 38 min
WN 2570 STL 08:55 MDW 10:00 1h 05m 34 88% 0.0% 32 min
WN 2665 STL 09:40 MDW 10:45 1h 05m 16 69% 0.0% 20 min
WN 1373 STL 11:20 MDW 12:25 1h 05m 16 80% 6.2% 23 min
WN 3344 STL 12:40 MDW 13:45 1h 05m 26 60% 3.8% 93 min
WN 556 STL 15:35 MDW 16:40 1h 05m 34 61% 2.9% 40 min
WN 448 STL 16:00 MDW 17:05 1h 05m 16 50% 0.0% 32 min
WN 2289 STL 17:55 MDW 19:05 1h 10m 16 80% 0.0% 28 min
WN 596 STL 18:30 MDW 19:35 1h 05m 26 52% 3.8% 73 min
WN 3957 STL 21:45 MDW 22:55 1h 05m 57 67% 0.0% 80 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.
Southwest STL MDW 1h 10m 81% 1.2% 1,704 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