2,378 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: airlines and hours on this route all land within a few points of 86% on time.

Best time to leave 6–7 am 92% arrive on time from SAN

Best single flight DL 819 SAN 22:30 → ATL 05:50 · 95% on time Avoid DL 540 SAN 14:18 → ATL 22:00 · 83% 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).

SAN

% 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.


Delta	2,167	87%	0.7%	75 min
Alaska	211	79%	0.5%	57 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 819	SAN 22:30	ATL 05:50	95%
DL 729	SAN 06:15	ATL 13:43	92%
DL 725	SAN 10:43	ATL 18:12	87%
DL 1179	SAN 08:00	ATL 15:28	86%
DL 540	SAN 14:18	ATL 22:00	83%

All 9 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	SAN	ATL	4h 22m	87%	0.7%	2,167	Flying now
Alaska	SAN	ATL	4h 31m	79%	0.5%	211	Not 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