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Showing American only (incl. its regional partners)All airlines ×
1,007 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: American’s LGA → BUF flights land within a few points of 3 in 4 on time whatever the hour.

Best time to leave 9–10 am 80% arrive on time from LGA

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).

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LGA
82
73
74
76
72
72
65
% 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.

No American flight on this route ran 150+ times in the year.

All 4 American 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.
AA 4379flown by Republic LGA 09:07 BUF 10:40 1h 33m 72 84% 4.2% 46 min
AA 4570flown by Republic LGA 12:00 BUF 13:26 1h 33m 27 93% 0.0% 17 min
AA 4378flown by Republic LGA 16:08 BUF 17:48 1h 40m 72 67% 9.7% 88 min
AA 4521flown by Republic LGA 19:29 BUF 21:07 1h 38m 90 74% 6.7% 86 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.
American LGA BUF 1h 33m 74% 6.0% 1,007 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