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Showing Southwest only (incl. its regional partners)All airlines ×
2,521 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am from National: 94% depart on time. After 4 pm it’s barely half.

Best time to leave 6–7 am 94% arrive on time from DCA, 93% arrive on time from BWI
Best airport pair DCA → HOU 77% on time, 1.8% cancelled, 1,053 flights

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).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
DCA
94
43
70
49
49
BWI
95
86
88
77
72
77
76
64
53
65
59
52
41
55
47
% 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 12 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 1076 DCA 06:05 HOU 08:15 3h 10m 14 69% 7.1% 26 min
WN 1432 DCA 06:15 HOU 08:25 3h 10m 40 90% 0.0% 58 min
WN 3246 BWI 06:50 HOU 09:00 3h 10m 57 81% 0.0% 28 min
WN 4158 BWI 08:25 HOU 10:40 3h 15m 12 92% 0.0% 22 min
WN 956 BWI 10:00 HOU 12:15 3h 15m 33 88% 0.0% 42 min
WN 757 BWI 11:00 HOU 13:15 3h 15m 16 100% 0.0% –
WN 1433 DCA 12:48 HOU 14:58 3h 10m 48 47% 2.1% 53 min
WN 4254 BWI 13:00 HOU 15:15 3h 15m 34 53% 0.0% 69 min
WN 925 BWI 18:10 HOU 20:25 3h 15m 16 53% 6.2% 95 min
WN 2730 DCA 18:10 HOU 20:35 3h 25m 24 26% 4.2% 78 min
WN 4418 DCA 18:35 HOU 20:50 3h 15m 16 43% 12.5% 81 min
WN 958 BWI 20:00 HOU 22:15 3h 15m 42 48% 4.8% 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 HOU 3h 30m 77% 1.8% 1,053 Flying now
Southwest BWI HOU 3h 25m 77% 1.4% 1,468 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