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3,665 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s 62%.

Best time to leave 7–8 am 95% arrive on time from LGA
Best single flight DL 4939 LGA 06:30 → STL 08:08 · 89% on time Avoid DL 4905 LGA 13:59 → STL 15:50 · 65% 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
LGA
94
97
81
86
85
60
79
77
68
55
73
64
58
77
% 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.
American (incl. Republic) 928 79% 4.7% 73 min
Delta (incl. Endeavor, SkyWest, Republic) 1,343 77% 5.4% 70 min
Southwest 1,394 76% 3.4% 68 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 4939flown by Endeavor LGA 06:30 STL 08:08 89%
DL 4922flown by Endeavor LGA 10:00 STL 11:47 80%
DL 4926flown by Endeavor LGA 18:51 STL 20:46 70%
DL 4905flown by Endeavor LGA 13:59 STL 15:50 65%
All 13 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.
American LGA STL 2h 56m 79% 4.7% 928 Flying now
Delta LGA STL 2h 54m 77% 5.4% 1,343 Flying now
Southwest LGA STL 2h 55m 76% 3.4% 1,394 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