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Showing Delta only (incl. its regional partners)All airlines ×
2,380 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 88% depart on time. After 4 pm it’s 78%.

Best time to leave 1–2 pm 87% arrive on time from ATL
Best single flight DL 774 ATL 09:52 → SEA 12:20 · 84% on time Avoid DL 714 ATL 18:25 → SEA 20:49 · 67% 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).

7
8
9
10
11
12
13
14
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ATL
88
88
85
85
88
83
92
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78
72
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78
% 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 774 ATL 09:52 SEA 12:20 84%
DL 629 ATL 12:35 SEA 14:55 82%
DL 444 ATL 07:40 SEA 10:00 82%
DL 481 ATL 14:32 SEA 16:49 80%
DL 903 ATL 21:35 SEA 23:59 79%
· · ·
DL 472 ATL 16:45 SEA 19:04 70%
DL 714 ATL 18:25 SEA 20:49 67%

All 9 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 444 ATL 07:40 SEA 10:00 5h 20m 363 82% 1.7% 52 min
DL 774 ATL 09:52 SEA 12:20 5h 30m 365 84% 0.0% 50 min
DL 648 ATL 11:10 SEA 13:38 5h 28m 121 87% 0.0% 66 min
DL 629 ATL 12:35 SEA 14:55 5h 20m 365 82% 0.5% 49 min
DL 481 ATL 14:32 SEA 16:49 5h 16m 308 80% 0.0% 48 min
DL 472 ATL 16:45 SEA 19:04 5h 19m 174 70% 0.0% 63 min
DL 714 ATL 18:25 SEA 20:49 5h 24m 307 67% 0.3% 74 min
DL 834 ATL 19:22 SEA 21:48 5h 26m 45 56% 0.0% 42 min
DL 903 ATL 21:35 SEA 23:59 5h 24m 284 79% 0.7% 58 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 ATL SEA 5h 24m 78% 0.5% 2,380 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