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

966 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 73%.

Best time to leave 8–9 am 85% arrive on time from JFK

Best single flight DL 532 JFK 08:25 → DEN 10:55 · 85% on time Avoid DL 424 JFK 19:50 → DEN 22:45 · 70% 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).

JFK

% 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 532	JFK 08:25	DEN 10:55	85%
DL 457	JFK 15:59	DEN 18:45	75%
DL 424	JFK 19:50	DEN 22:45	70%

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 532	JFK 08:25	DEN 10:55	4h 28m	224	85%	4.0%	51 min
DL 457	JFK 15:59	DEN 18:45	4h 46m	187	75%	2.1%	58 min
DL 424	JFK 19:50	DEN 22:45	4h 55m	287	70%	2.1%	75 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	JFK	DEN	4h 34m	75%	2.3%	966	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