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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
Boston flights leaving CLE 11 am–12 pm: 1Close ×
DL 5674flown by Republic CLE 11:15 BOS 13:14 1h 59m 194 90% 1.0% 69 min

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