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1,259 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: United’s IAD → ROC flights land within a few points of 4 in 5 on time whatever the hour.

Best time to leave 8–9 am 87% arrive on time from IAD
Best single flight UA 4871 IAD 17:30 → ROC 19:05 · 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).

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IAD
% 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. CommuteAir, GoJet, Mesa, Republic) 1,259 81% 2.5% 86 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 4871flown by CommuteAir IAD 17:30 ROC 19:05 75%

All 7 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 4615flown by GoJet IAD 08:25 ROC 09:52 1h 27m 31 90% 0.0% 61 min
UA 4873flown by CommuteAir IAD 08:25 ROC 09:53 1h 28m 29 93% 3.4% 126 min
UA 4864flown by CommuteAir IAD 12:50 ROC 14:19 1h 29m 30 79% 0.0% 130 min
UA 4485flown by GoJet IAD 12:50 ROC 14:18 1h 28m 27 92% 7.4% 29 min
UA 4871flown by CommuteAir IAD 17:30 ROC 19:05 1h 35m 165 75% 6.1% 82 min
UA 4394flown by GoJet IAD 22:37 ROC 23:58 1h 21m 34 82% 2.9% 113 min
UA 4841flown by CommuteAir IAD 22:37 ROC 23:59 1h 22m 34 82% 2.9% 33 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 IAD ROC 1h 27m 81% 2.5% 1,259 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