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4,078 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 7 in 10.

Best time to leave 8–9 am 89% arrive on time from IAD
Best single flight DL 2127 IAD 06:00 → ATL 07:46 · 90% on time Avoid UA 2081 IAD 17:17 → ATL 19:16 · 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).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
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IAD
90
86
92
86
82
80
85
79
76
74
58
66
54
79
% 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.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
United (incl. Mesa, Republic) 1,202 81% 0.7% 79 min
Delta 2,224 81% 2.8% 98 min
Frontier 652 70% 2.1% 83 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 2127 IAD 06:00 ATL 07:46 90%
UA 2739 IAD 08:15 ATL 10:14 89%
UA 471 IAD 12:35 ATL 14:34 86%
DL 1324 IAD 10:21 ATL 12:05 85%
DL 1444 IAD 12:37 ATL 14:34 83%
· · ·
DL 1695 IAD 17:51 ATL 19:54 74%
F9 4707 IAD 07:30 ATL 09:44 71%
UA 2081 IAD 17:17 ATL 19:16 70%

All 15 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 2127 IAD 06:00 ATL 07:46 1h 46m 268 90% 2.6% 134 min
F9 4707 IAD 07:30 ATL 09:44 2h 14m 334 71% 0.9% 82 min
UA 2739 IAD 08:15 ATL 10:14 1h 59m 275 89% 0.4% 78 min
DL 3080 IAD 08:27 ATL 10:17 1h 48m 66 83% 1.5% 70 min
DL 1324 IAD 10:21 ATL 12:05 1h 48m 207 85% 4.3% 107 min
F9 1081 IAD 11:17 ATL 13:18 2h 01m 208 75% 1.9% 75 min
UA 471 IAD 12:35 ATL 14:34 1h 59m 307 86% 0.7% 90 min
DL 1444 IAD 12:37 ATL 14:34 1h 56m 224 83% 3.6% 92 min
DL 2135 IAD 15:02 ATL 16:54 1h 52m 114 73% 0.0% 106 min
UA 2081 IAD 17:17 ATL 19:16 1h 59m 315 70% 0.6% 83 min
DL 1695 IAD 17:51 ATL 19:54 2h 08m 347 74% 2.0% 123 min
DL 2902 IAD 19:35 ATL 21:39 2h 00m 137 78% 6.6% 89 min
F9 3691 IAD 20:40 ATL 22:56 2h 16m 74 56% 4.1% 104 min
F9 4409 IAD 20:52 ATL 23:16 2h 24m 36 59% 11.1% 64 min
UA 1635 IAD 22:28 ATL 00:30 2h 02m 111 75% 2.7% 64 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.
United IAD ATL 2h 01m 81% 0.7% 1,202 Flying now
Delta IAD ATL 1h 58m 81% 2.8% 2,224 Flying now
Frontier IAD ATL 2h 16m 70% 2.1% 652 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