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Showing Southwest only (incl. its regional partners)All airlines ×
1,902 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 93% depart on time. After 4 pm it’s 56%.

Best time to leave 6–7 am 98% arrive on time from DEN

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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% 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 9 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 1052 DEN 05:00 BWI 10:25 3h 25m 16 93% 0.0% 76 min
WN 899 DEN 05:30 BWI 10:55 3h 25m 26 100% 0.0% –
WN 1498 DEN 07:00 BWI 12:25 3h 25m 42 83% 0.0% 25 min
WN 4434 DEN 10:55 BWI 16:20 3h 30m 57 78% 0.0% 40 min
WN 1045 DEN 14:35 BWI 20:00 3h 25m 34 66% 0.0% 46 min
WN 1040 DEN 15:30 BWI 20:55 3h 25m 16 43% 6.2% 41 min
WN 1499 DEN 18:05 BWI 23:40 3h 35m 49 39% 0.0% 88 min
WN 1500 DEN 19:05 BWI 00:35 3h 28m 50 28% 0.0% 69 min
WN 1501 DEN 23:50 BWI 05:15 3h 25m 58 66% 0.0% 32 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 DEN BWI 3h 25m 77% 1.2% 1,902 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