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Showing Delta only (incl. its regional partners)All airlines ×
1,390 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 93% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 6–7 am 93% arrive on time from CVG
Best single flight DL 5790 CVG 06:00 → BOS 08:22 · 91% on time Avoid DL 5789 CVG 17:20 → BOS 19:45 · 67% 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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CVG
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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 5790flown by Republic CVG 06:00 BOS 08:22 91%
DL 5601flown by Republic CVG 11:49 BOS 14:09 85%
DL 5789flown by Republic CVG 17:20 BOS 19:45 67%

All 5 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 5790flown by Republic CVG 06:00 BOS 08:22 2h 22m 203 91% 3.9% 80 min
DL 5601flown by Republic CVG 11:49 BOS 14:09 2h 20m 322 85% 3.7% 58 min
DL 5598flown by Republic CVG 14:47 BOS 17:09 2h 22m 57 73% 1.8% 78 min
DL 5789flown by Republic CVG 17:20 BOS 19:45 2h 25m 285 67% 4.6% 66 min
DL 5620flown by Republic CVG 20:20 BOS 22:47 2h 27m 67 84% 6.0% 78 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 CVG BOS 2h 20m 80% 3.6% 1,390 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