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8,413 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 62%.

Best time to leave 6–7 am 92% arrive on time from ATL
Best single flight DL 404 ATL 06:00 → LGA 08:11 · 92% on time Avoid F9 3288 ATL 20:22 → LGA 22:43 · 41% 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
ATL
93
92
86
85
86
81
78
75
67
69
73
62
62
61
53
66
% 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 4,935 77% 3.2% 64 min
American (incl. Republic) 1,738 76% 5.8% 89 min
Southwest 815 73% 2.5% 67 min
Frontier 919 50% 6.6% 103 min
Spirit 6 – 0.0% 29 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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 404 ATL 06:00 LGA 08:11 92%
DL 323 ATL 07:30 LGA 09:42 91%
DL 513 ATL 08:30 LGA 10:43 88%
DL 371 ATL 10:30 LGA 12:44 86%
DL 467 ATL 11:30 LGA 13:44 86%
· · ·
DL 490 ATL 20:00 LGA 22:27 63%
F9 3454 ATL 15:30 LGA 17:51 53%
F9 3288 ATL 20:22 LGA 22:43 41%
All 24 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 ATL LGA 2h 18m 77% 3.2% 4,935 Flying now
American ATL LGA 2h 18m 76% 5.8% 1,738 Flying now
Frontier ATL LGA 2h 21m 50% 6.6% 919 Flying now
Southwest ATL LGA 2h 10m 73% 2.5% 815 Not flying now
Spirit ATL LGA – 83%few flights 0.0% 6 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