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6,801 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 3 in 5.

Best time to leave 6–7 am 92% arrive on time from DCA
Best single flight DL 410 DCA 06:00 → ATL 07:48 · 95% on time Avoid DL 850 DCA 18:25 → ATL 20:30 · 68% 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).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
DCA
92
88
86
83
86
81
78
77
64
71
66
57
54
64
67
52
% 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
Atlanta flights leaving DCA 8–9 am: 2Close ×
DL 343 DCA 08:00 ATL 09:52 1h 52m 329 87% 2.7% 116 min
AA 3976flown by Envoy DCA 08:20 ATL 10:27 2h 07m 62 82% 0.0% 73 min

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 3,842 81% 2.6% 86 min
Southwest 1,106 80% 1.9% 62 min
American (incl. Envoy, PSA, Republic) 1,853 73% 5.7% 77 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.
DL 410 DCA 06:00 ATL 07:48 95%
DL 330 DCA 06:59 ATL 08:51 93%
DL 926 DCA 10:16 ATL 12:08 87%
DL 343 DCA 08:00 ATL 09:52 87%
DL 455 DCA 09:00 ATL 10:52 86%
· · ·
DL 360 DCA 16:00 ATL 17:57 73%
DL 950 DCA 19:35 ATL 21:35 70%
DL 850 DCA 18:25 ATL 20:30 68%
All 26 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 DCA ATL 2h 00m 81% 2.6% 3,842 Flying now
Southwest DCA ATL 1h 55m 80% 1.9% 1,106 Flying now
American DCA ATL 2h 05m 73% 5.7% 1,853 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