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

No clear winner: Southwest’s DEN → BDL flights land within a few points of 57% on time whatever the hour.

Best time to leave 6–7 pm 56% 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).

17
18
DEN
55
54
% 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.

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 BDL 3h 30m 57% 3.7% 163 Not flying now

Alternatives with one stop

All connections →
SouthwestDetails → DEN 23:50 → BWI 05:15WN 1501 1h 30m Baltimore BWI 06:45 → BDL 08:05 +1WN 869 6h 15m 97% 93%
SouthwestDetails → DEN 05:30 → BWI 10:55WN 899 1h 55m Baltimore BWI 12:50 → BDL 14:10WN 1143 6h 40m 100% 79%
SouthwestDetails → DEN 07:10 → MDW 10:30WN 114 3h 00m Chicago MDW 13:30 → BDL 16:35WN 692 7h 25m 100% 79%
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