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

1,402 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 barely half.

Best time to leave 8–9 am 86% arrive on time from DCA

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).

DCA

% 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 5 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 4853	DCA 08:00	STL 09:10	2h 10m	49	83%	2.0%	32 min
WN 4752	DCA 12:00	STL 13:15	2h 15m	33	75%	0.0%	41 min
WN 644	DCA 12:00	STL 13:15	2h 15m	16	75%	0.0%	42 min
WN 1461	DCA 14:35	STL 15:50	2h 15m	49	43%	0.0%	96 min
WN 1462	DCA 18:40	STL 20:00	2h 20m	49	49%	8.2%	75 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	DCA	STL	2h 20m	76%	1.4%	1,402	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