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

Leave before 9 am: 94% depart on time. After 4 pm it’s 82%.

Best time to leave 8–9 am 94% arrive on time from IAD
Best single flight UA 1789 IAD 08:25 → SAT 10:59 · 94% on time Avoid UA 1869 IAD 17:45 → SAT 20:22 · 81% 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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IAD
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% 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.
United (incl. Mesa) 686 88% 0.6% 109 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.
UA 1789 IAD 08:25 SAT 10:59 94%
UA 1869 IAD 17:45 SAT 20:22 81%

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 IAD SAT 3h 37m 88% 0.6% 686 Flying now

Alternatives with one stop

All connections →
UnitedDetails → IAD 06:30 → IAH 08:39UA 1935 1h 00m Houston IAH 09:39 → SAT 10:46UA 6201 · flown by Mesa 5h 16m 100% 88%
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