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Showing United only (incl. its regional partners)All airlines ×
1,101 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: United’s AUS → IAD flights land within a few points of 9 in 10 on time whatever the hour.

Best time to leave 7–8 am 95% arrive on time from AUS
Best single flight UA 525 AUS 07:30 → IAD 11:48 · 95% on time Avoid UA 376 AUS 17:00 → IAD 21:19 · 89% 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).

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AUS
93
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90
83
% 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.
UA 525 AUS 07:30 IAD 11:48 95%
UA 2344 AUS 12:00 IAD 16:19 89%
UA 376 AUS 17:00 IAD 21:19 89%

All 3 United 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.
UA 525 AUS 07:30 IAD 11:48 3h 18m 327 95% 1.5% 52 min
UA 2344 AUS 12:00 IAD 16:19 3h 19m 303 89% 0.7% 102 min
UA 376 AUS 17:00 IAD 21:19 3h 19m 276 89% 0.7% 93 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.
United AUS IAD 3h 16m 91% 0.9% 1,101 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