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

Leave before 9 am: 87% depart on time. After 4 pm it’s 2 in 3.

Best time to leave 7–8 am 85% arrive on time from ROC
Best single flight DL 5311 ROC 06:00 → LGA 07:19 · 82% on time Avoid DL 5340 ROC 12:35 → LGA 13:55 · 72% 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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ROC
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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.

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 5311flown by Endeavor ROC 06:00 LGA 07:19 82%
DL 5340flown by Endeavor ROC 12:35 LGA 13:55 72%

All 3 Delta 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 5311flown by Endeavor ROC 06:00 LGA 07:19 1h 19m 339 82% 3.5% 110 min
DL 5340flown by Endeavor ROC 12:35 LGA 13:55 1h 19m 165 72% 8.5% 95 min
DL 5054flown by Endeavor ROC 19:23 LGA 20:44 1h 21m 69 63% 17.4% 68 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.
Delta ROC LGA 1h 21m 74% 6.4% 974 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