Showing Delta only (incl. its regional partners)All airlines ×

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

No clear winner: Delta’s PWM → JFK flights land within a few points of 82% on time whatever the hour.

Best time to leave 6–7 am 92% arrive on time from PWM

Best single flight DL 5277 PWM 06:20 → JFK 07:44 · 92% on time Avoid DL 5399 PWM 14:59 → JFK 16:32 · 72% 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.

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 5277flown by Endeavor	PWM 06:20	JFK 07:44	92%
DL 5399flown by Endeavor	PWM 14:59	JFK 16:32	72%

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 5277flown by Endeavor	PWM 06:20	JFK 07:44	1h 24m	349	92%	5.7%	91 min
DL 5405flown by Endeavor	PWM 14:38	JFK 16:09	1h 31m	31	77%	3.2%	49 min
DL 5399flown by Endeavor	PWM 14:59	JFK 16:32	1h 33m	254	72%	5.1%	72 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	PWM	JFK	1h 31m	82%	5.8%	712	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