The nonstop is quickest: Southwest DCA → AUS (3h 50m), on time 56% of the time. Delta via Atlanta (6h 27m) is more reliable, 83%, but takes 2h 37m longer.
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.
Airlines on this route
Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
| Southwest | 364 | 56% | 0.5% | 60 min |
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 flight on this route ran 150+ times in the year.
All 1 flights on this route →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 | DCA | AUS | 3h 50m | 56% | 0.5% | 364 | Flying now |
Alternatives with one stop
All connections →| SouthwestDetails → | DCA 06:15 → HOU 08:25WN 1432 | 1h 00m Houston | HOU 09:25 → AUS 10:20WN 270 | 5h 05m | 90% | 83% |
| DeltaDetails → | DCA 09:00 → ATL 10:52DL 455 | 1h 24m Atlanta | ATL 12:16 → AUS 13:39DL 2104 | 5h 39m | 93% | 76% |
| DeltaDetails → | DCA 08:00 → ATL 09:52DL 343 | 1h 13m Atlanta | ATL 11:05 → AUS 12:25DL 2011 | 5h 26m | 90% | 76% |
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