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Showing Southwest only (incl. its regional partners)All airlines ×
2,531 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s barely half.

Best time to leave 6–7 am 95% arrive on time from HOU
Best airport pair HOU → BWI 75% on time, fewest cancelled (1.4%), 1,479 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).

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HOU
92
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88
92
84
78
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67
64
58
55
63
57
49
46
% 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 10 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 3797 HOU 05:25 BWI 09:30 3h 05m 58 95% 1.7% 22 min
WN 4392 HOU 08:05 DCA 12:05 3h 00m 16 87% 0.0% 45 min
WN 1701 HOU 08:15 DCA 12:20 3h 05m 40 82% 0.0% 28 min
WN 1960 HOU 10:30 BWI 14:35 3h 05m 57 73% 1.8% 56 min
WN 1968 HOU 13:58 DCA 18:02 3h 05m 50 67% 10.0% 68 min
WN 184 HOU 15:25 BWI 19:35 3h 10m 26 27% 15.4% 41 min
WN 1887 HOU 15:55 BWI 20:08 3h 12m 16 31% 0.0% 66 min
WN 4669 HOU 18:15 BWI 22:25 3h 10m 12 58% 0.0% 55 min
WN 4888 HOU 19:55 DCA 23:55 3h 00m 50 48% 4.0% 48 min
WN 1961 HOU 20:35 BWI 00:35 3h 05m 57 54% 0.0% 51 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 HOU BWI 2h 55m 75% 1.4% 1,479 Flying now
Southwest HOU DCA 2h 55m 71% 1.7% 1,052 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