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

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

No clear winner: Southwest’s MDW → DSM flights land within a few points of 72% on time whatever the hour.

Best time to leave 10–11 am 88% arrive on time from MDW

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).

MDW

% 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.

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

All 4 Southwest 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 1771	MDW 10:10	DSM 11:30	1h 20m	50	86%	0.0%	27 min
WN 41	MDW 21:20	DSM 22:48	1h 28m	16	44%	0.0%	53 min
WN 4277	MDW 22:05	DSM 23:30	1h 25m	29	43%	0.0%	77 min
WN 4279	MDW 22:05	DSM 23:35	1h 30m	12	50%	0.0%	98 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	MDW	DSM	1h 25m	72%	1.4%	290	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