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Showing Delta only (incl. its regional partners)All airlines ×
876 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 2 in 3.

Best time to leave 6–7 am 93% arrive on time from CLE
Best single flight DL 5684 CLE 06:05 → BOS 08:09 · 92% on time Avoid DL 5641 CLE 17:46 → BOS 19:55 · 71% 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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% 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 5684flown by Republic CLE 06:05 BOS 08:09 92%
DL 5674flown by Republic CLE 11:15 BOS 13:14 90%
DL 5641flown by Republic CLE 17:46 BOS 19:55 71%

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 5684flown by Republic CLE 06:05 BOS 08:09 2h 04m 365 92% 1.6% 77 min
DL 5674flown by Republic CLE 11:15 BOS 13:14 1h 59m 194 90% 1.0% 69 min
DL 5641flown by Republic CLE 17:46 BOS 19:55 2h 08m 299 71% 4.3% 75 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 CLE BOS 2h 04m 84% 2.5% 876 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