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

1,001 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 3 in 5.

Best time to leave 6–7 am 82% arrive on time from RDU

Best single flight DL 5006 RDU 06:00 → DCA 07:19 · 82% on time Avoid DL 5310 RDU 15:42 → DCA 17:07 · 47% 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 5006flown by Endeavor	RDU 06:00	DCA 07:19	82%
DL 5198flown by Endeavor	RDU 19:47	DCA 21:20	49%
DL 5310flown by Endeavor	RDU 15:42	DCA 17:07	47%

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 5006flown by Endeavor	RDU 06:00	DCA 07:19	1h 19m	346	82%	1.2%	64 min
DL 5310flown by Endeavor	RDU 15:42	DCA 17:07	1h 25m	346	47%	2.3%	61 min
DL 5198flown by Endeavor	RDU 19:47	DCA 21:20	1h 33m	308	49%	8.1%	78 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	DCA	1h 25m	60%	3.7%	1,001	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