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1,222 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 barely half.

Best time to leave 7–8 am 93% arrive on time from PBI
Best single flight B6 544 PBI 13:00 → ISP 15:50 · 81% 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).

7
8
9
10
11
12
13
14
15
16
17
18
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20
21
PBI
94
90
72
80
63
62
32
66
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
Islip flights leaving PBI 10–11 am: 1Close ×
B6 444 PBI 10:12 ISP 12:56 2h 45m 141 66% 1.4% 75 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.

JetBlue 573 77% 1.7% 66 min
Southwest 580 75% 1.0% 56 min
Frontier 69 – 5.8% 67 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.

B6 544 PBI 13:00 ISP 15:50 81%
All 4 flights on this route →

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.

JetBlue PBI ISP 2h 45m 77% 1.7% 573 Flying now
Southwest PBI ISP 2h 40m 75% 1.0% 580 Flying now
Frontier PBI ISP 2h 47m 50% 5.8% 69 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