1,048 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: airlines and hours on this route all land within a few points of 82% on time.

Best time to leave 7–8 am 96% arrive on time from PWM

Best single flight B6 307 PWM 06:00 → JFK 07:22 · 94% on time Avoid B6 407 PWM 14:30 → JFK 15:59 · 69% 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).

PWM

% 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. Endeavor, Republic)	712	82%	5.8%	81 min
JetBlue	336	82%	3.9%	102 min

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 307	PWM 06:00	JFK 07:22	94%
DL 5277flown by Endeavor	PWM 06:20	JFK 07:44	92%
DL 5399flown by Endeavor	PWM 14:59	JFK 16:32	72%
B6 407	PWM 14:30	JFK 15:59	69%

All 5 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.


Delta	PWM	JFK	1h 31m	82%	5.8%	712	Flying now
JetBlue	PWM	JFK	1h 22m	82%	3.9%	336	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