MIA to PHL flight delays
Miami, FL (MIA) Philadelphia, PA (PHL) · 1,013 miles
3,158 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
75.76%
Arrived on time
Within 15 minutes of schedule
2.28%
Cancelled
Share of scheduled flights
79 min
When late, late by
Average across delayed arrivals
20 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The 3 airlines here are separated by under 4 points — close enough to call a tie. Choose on price and departure time.
Flights from Miami to Philadelphia run late more often than the average route, though not severely.
Which airline should you fly on this route?
Over January 2025 – August 2026, American Airlines arrived on time most often on MIA to PHL. Frontier Airlines was late most often. Flights ran closest to schedule in October and worst in July.
Every airline on MIA to PHL
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| American Airlines | 2,569 | 76.38% | 2.1% | 79 min | D |
| Frontier Airlines | 353 | 72.46% | 2.27% | 91 min | D |
| Spirit Airlines | 236 | 73.89% | 4.24% | 66 min | D |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
PHL to MIA Philadelphia back to Miami 77.21% on time COther routes from Miami
Common questions
Are flights from Miami to Philadelphia usually delayed?
75.76% of flights on the MIA to PHL route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
Which airline is most on time from Miami to Philadelphia?
American Airlines, at 76.38% on time across 2,569 flights. The least punctual on the route was Frontier Airlines at 72.46%.
How often are MIA to PHL flights cancelled?
2.28% of scheduled flights did not operate — about 23 in every thousand. That is in the normal range.
What is the best month to fly Miami to Philadelphia?
October, when 81.9% of flights arrived on time. The worst was July at 65.1%.
When MIA to PHL flights are late, how late are they?
About 79 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on MIA to PHL during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →