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1,650 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 3 in 5.

Best time to leave 6–7 am 92% arrive on time from CLE
Best single flight DL 5684 CLE 06:05 → BOS 08:09 · 92% on time Avoid B6 640 CLE 16:04 → BOS 17:48 · 63% 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).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CLE
93
92
83
84
86
79
79
71
42
69
58
% 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.
Delta (incl. Republic) 876 84% 2.5% 74 min
JetBlue 695 72% 3.3% 79 min
Frontier 79 – 2.5% 47 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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%
B6 2040 CLE 10:08 BOS 11:50 81%
B6 540 CLE 07:23 BOS 09:02 71%
DL 5641flown by Republic CLE 17:46 BOS 19:55 71%
· · ·
B6 640 CLE 16:04 BOS 17:48 63%

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
JetBlue CLE BOS 1h 42m 72% 3.3% 695 Flying now
Frontier CLE BOS 1h 52m 90% 2.5% 79 Not 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