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

893 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: Southwest’s DEN → TUL flights land within a few points of 2 in 3 on time whatever the hour.

Best time to leave 10–11 am 84% 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).

DEN

% 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 2621	DEN 10:15	TUL 13:00	1h 45m	16	94%	0.0%	22 min
WN 1762	DEN 10:20	TUL 13:05	1h 45m	33	85%	0.0%	59 min
WN 4635	DEN 16:05	TUL 18:45	1h 35m	58	53%	0.0%	71 min
WN 1764	DEN 19:55	TUL 22:35	1h 42m	41	46%	9.8%	89 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	TUL	1h 35m	68%	1.2%	893	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