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

No clear winner: Southwest’s HOU → MEM flights land within a few points of 3 in 4 on time whatever the hour.

Best time to leave 11 am–12 pm 91% arrive on time from HOU

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
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% 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 4013 HOU 09:48 MEM 11:20 1h 32m 50 91% 4.0% 50 min
WN 410 HOU 14:45 MEM 16:20 1h 35m 26 62% 0.0% 52 min
WN 4024 HOU 15:55 MEM 17:30 1h 35m 16 69% 0.0% 51 min
WN 4745 HOU 20:35 MEM 22:10 1h 38m 50 60% 0.0% 62 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 MEM 1h 30m 75% 1.3% 830 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