Leave before 9 am: 96% depart on time. After 4 pm it’s 64%.
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).
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 3773 | SMF 05:55 | DEN 09:15 | 2h 20m | 50 | 100% | 0.0% | – |
| WN 2837 | SMF 07:25 | DEN 10:40 | 2h 15m | 16 | 100% | 0.0% | – |
| WN 3774 | SMF 10:15 | DEN 13:35 | 2h 20m | 26 | 96% | 0.0% | 37 min |
| WN 3775 | SMF 12:00 | DEN 15:20 | 2h 20m | 50 | 76% | 0.0% | 47 min |
| WN 4061 | SMF 13:05 | DEN 16:25 | 2h 20m | 16 | 33% | 0.0% | 44 min |
| WN 4105 | SMF 13:40 | DEN 17:00 | 2h 20m | 41 | 54% | 0.0% | 39 min |
| WN 2993 | SMF 15:00 | DEN 18:20 | 2h 20m | 42 | 63% | 0.0% | 67 min |
| WN 1001 | SMF 16:00 | DEN 19:20 | 2h 20m | 42 | 64% | 0.0% | 36 min |
| WN 670 | SMF 17:40 | DEN 21:00 | 2h 20m | 26 | 77% | 0.0% | 74 min |
| WN 2045 | SMF 19:50 | DEN 23:08 | 2h 18m | 16 | 81% | 0.0% | 55 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 | SMF | DEN | 2h 20m | 79% | 0.2% | 1,869 | Flying now |
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