2,068 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 78%.

Best time to leave 8–9 am 95% arrive on time from SEA

Best single flight DL 739 SEA 07:15 → AUS 13:24 · 90% on time Avoid DL 848 SEA 17:50 → AUS 23:56 · 75% 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).

SEA

% 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.


Alaska	1,066	82%	0.7%	47 min
Delta	944	81%	1.2%	69 min
Southwest	58	–	0.0%	56 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 739	SEA 07:15	AUS 13:24	90%
AS 502	SEA 08:34	AUS 14:47	85%
AS 352	SEA 11:43	AUS 18:04	84%
DL 831	SEA 11:04	AUS 17:18	79%
AS 372	SEA 18:19	AUS 00:31	78%
· · ·
DL 848	SEA 17:50	AUS 23:56	75%

All 10 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.


DL 739	SEA 07:15	AUS 13:24	4h 09m	281	90%	0.7%	81 min
AS 502	SEA 08:34	AUS 14:47	4h 13m	313	85%	1.6%	45 min
AS 422	SEA 09:05	AUS 15:14	4h 09m	52	69%	0.0%	47 min
DL 831	SEA 11:04	AUS 17:18	4h 14m	353	79%	1.7%	66 min
AS 352	SEA 11:43	AUS 18:04	4h 21m	299	84%	0.3%	57 min
AS 604	SEA 11:46	AUS 18:04	4h 18m	51	78%	0.0%	32 min
WN 4956	SEA 13:30	AUS 19:40	4h 10m	50	40%	0.0%	56 min
DL 848	SEA 17:50	AUS 23:56	4h 06m	305	75%	0.7%	69 min
AS 461	SEA 18:10	AUS 00:24	4h 14m	73	84%	0.0%	28 min
AS 372	SEA 18:19	AUS 00:31	4h 12m	254	78%	0.4%	50 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.


Alaska	SEA	AUS	4h 13m	82%	0.7%	1,066	Flying now
Delta	SEA	AUS	4h 09m	81%	1.2%	944	Flying now
Southwest	SEA	AUS	4h 10m	48%	0.0%	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