Sun, Oct 4 has passed, so this is the 12-month record.

2,067 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 73%.

Best time to leave 6–7 am 93% arrive on time from AUS

Best single flight DL 780 AUS 06:00 → SEA 08:26 · 93% on time Avoid AS 339 AUS 19:07 → SEA 21:35 · 74% on time

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).

AUS

% 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.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.


Delta	943	85%	1.1%	91 min
Alaska	1,066	83%	0.8%	52 min
Southwest	58	–	1.7%	34 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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.


DL 780	AUS 06:00	SEA 08:26	93%
AS 503	AUS 16:17	SEA 18:47	87%
DL 831	AUS 18:14	SEA 20:50	76%
AS 339	AUS 19:07	SEA 21:35	74%

All 11 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.


Delta	AUS	SEA	4h 36m	85%	1.1%	943	Flying now
Alaska	AUS	SEA	4h 36m	83%	0.8%	1,066	Flying now
Southwest	AUS	SEA	4h 20m	51%	1.7%	58	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