3,249 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 2 in 3.

Best time to leave 6–7 am 93% arrive on time from MIA

Best single flight AA 551 MIA 09:00 → PHL 11:55 · 86% on time Avoid F9 1204 MIA 21:21 → PHL 00:27 · 69% 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).

MIA

% 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	2,665	77%	2.6%	82 min
Spirit	222	75%	4.5%	64 min
Frontier	362	72%	3.0%	90 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.


AA 551	MIA 09:00	PHL 11:55	86%
AA 2188	MIA 22:04	PHL 00:55	76%
AA 3061	MIA 19:55	PHL 22:53	70%
F9 1204	MIA 21:21	PHL 00:27	69%

All 14 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	MIA	PHL	2h 53m	77%	2.6%	2,665	Flying now
Frontier	MIA	PHL	3h 05m	72%	3.0%	362	Flying now
Spirit	MIA	PHL	2h 53m	75%	4.5%	222	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