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

Take the nonstop: United SAT → IAD (3h 27m) reaches Dulles on time 93% of the time; the most reliable connection, Delta via Atlanta (6h 22m), 82%.

Best time to leave 7–8 am 96% arrive on time from SAT
Best single flight UA 471 SAT 07:00 → IAD 11:27 · 95% on time Avoid UA 2250 SAT 12:01 → IAD 16:28 · 92% 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).

7
8
9
10
11
12
SAT
95
94
90
% 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 93% 0.6% 111 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 471 SAT 07:00 IAD 11:27 95%
UA 2250 SAT 12:01 IAD 16:28 92%

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 SAT IAD 3h 27m 93% 0.6% 686 Flying now

Alternatives with one stop

All connections →
AmericanDetails → SAT 05:01 → DFW 06:18AA 2342 47m Dallas-Fort Worth DFW 07:05 → IAD 11:07AA 1906 5h 06m 81% 66%
DeltaDetails → SAT 10:47 → ATL 14:11DL 1676 48m Atlanta ATL 14:59 → IAD 16:47DL 1695 5h 00m 80% 58%
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