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8,411 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 63%.

Best time to leave 7–8 am 92% arrive on time from LGA
Best single flight DL 342 LGA 06:59 → ATL 09:20 · 94% on time Avoid F9 3453 LGA 18:48 → ATL 21:41 · 46% 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
22
LGA
88
93
90
91
86
84
81
78
78
75
67
64
61
70
59
42
% 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 4,932 81% 3.3% 74 min
American (incl. Republic) 1,739 78% 5.2% 68 min
Southwest 815 76% 2.9% 74 min
Frontier 919 57% 7.5% 106 min
Spirit 6 – 0.0% –

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 342 LGA 06:59 ATL 09:20 94%
DL 364 LGA 08:00 ATL 10:29 92%
DL 550 LGA 06:00 ATL 08:15 91%
DL 992 LGA 09:00 ATL 11:28 87%
DL 989 LGA 10:00 ATL 12:27 84%
· · ·
F9 3287 LGA 06:29 ATL 09:17 63%
F9 4347 LGA 22:00 ATL 00:27 60%
F9 3453 LGA 18:48 ATL 21:41 46%
All 25 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 LGA ATL 2h 30m 81% 3.3% 4,932 Flying now
American LGA ATL 2h 37m 78% 5.2% 1,739 Flying now
Frontier LGA ATL 2h 48m 57% 7.5% 919 Flying now
Southwest LGA ATL 2h 35m 76% 2.9% 815 Not flying now
Spirit LGA ATL – 100%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