Showing American only (incl. its regional partners)All airlines ×

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

Leave before 9 am: 88% depart on time. After 4 pm it’s 2 in 3.

Best time to leave 7–8 am 92% arrive on time from BUF

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).

BUF

% 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 4788flown by Republic	BUF 07:15	BOS 08:51	1h 36m	103	93%	2.9%	76 min
AA 4666flown by Republic	BUF 11:22	BOS 12:55	1h 35m	72	94%	2.8%	38 min
AA 4068flown by Envoy	BUF 16:13	BOS 17:51	1h 38m	33	67%	0.0%	67 min
AA 4440flown by Republic	BUF 16:14	BOS 17:52	1h 42m	51	69%	5.9%	90 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	BUF	BOS	1h 36m	84%	2.1%	376	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