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

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

Leave before 9 am: 92% depart on time. After 4 pm it’s barely half.

Best time to leave 6–7 am 94% arrive on time from RDU

Best single flight DL 5120 RDU 07:05 → EWR 08:59 · 89% on time Avoid DL 5222 RDU 17:00 → EWR 18:49 · 58% 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).

RDU

% 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 5120flown by Endeavor	RDU 07:05	EWR 08:59	89%
DL 5273flown by Endeavor	RDU 11:35	EWR 13:23	73%
DL 5222flown by Endeavor	RDU 17:00	EWR 18:49	58%

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 5120flown by Endeavor	RDU 07:05	EWR 08:59	1h 54m	346	89%	3.2%	73 min
DL 5273flown by Endeavor	RDU 11:35	EWR 13:23	1h 48m	298	73%	3.0%	67 min
DL 5222flown by Endeavor	RDU 17:00	EWR 18:49	1h 49m	196	58%	9.2%	102 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	RDU	EWR	1h 54m	76%	4.6%	852	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