MIA to PHL flight delays & on-time performance
Nonstop flights from Miami International Airport to Philadelphia International Airport · 1,013 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at MIA or PHL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Miami (MIA) to Philadelphia (PHL) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.8% were cancelled, and 10% arrived an hour or more late.
- American Airlines was the most punctual airline here (76% on time); Frontier Airlines was the least (71%).
- Departures scheduled around 6am did best (92% on time); around 3pm did worst (65%).
- Wednesday was the most reliable day to fly (80% on time) and Sunday the least (65%).
- The largest source of delay minutes was late-arriving aircraft (39%).
Which airline is most on time from MIA to PHL?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| American Airlines | 76% | 2.6% | 20 min | 9.3% | 2,665 |
| Spirit Airlines | 75% | 4.5% | 17 min | 9.4% | 222 |
| Frontier Airlines | 71% | 3.0% | 26 min | 14.5% | 362 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am92%375 flights
- 7am89%111 flights
- 8am88%258 flights
- 9am84%162 flights
- 11am74%46 flights
- 1pm76%233 flights
- 2pm69%264 flights
- 3pm65%138 flights
- 4pm72%178 flights
- 5pm66%274 flights
- 6pm68%229 flights
- 7pm72%246 flights
- 8pm69%164 flights
- 9pm70%412 flights
- 10pm68%120 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday72%4.8% cancelled
- Tuesday78%2.6% cancelled
- Wednesday80%0.9% cancelled
- Thursday79%0.2% cancelled
- Friday78%1.2% cancelled
- Saturday77%3.0% cancelled
- Sunday65%6.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft39%
- Airline (crew, maintenance, cleaning, fueling)39%
- Air traffic control & airport congestion17%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather81%
- Airline (crew, maintenance, cleaning, fueling)13%
- Air traffic control & airport congestion6%
- Security0%
MIA to PHL: common questions
- How often are MIA to PHL flights on time?
- 75% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Miami to Philadelphia cancelled?
- 2.8% of scheduled flights were cancelled (90 of 3,249).
- How long are typical delays?
- Across all flights the average arrival delay was 21 min (early arrivals count as zero). Flights that were late arrived 80 min behind schedule on average, and 9.9% of flights were an hour or more late.
- How long is taxi time at MIA?
- Flights on this route spent 21 min taxiing from the gate to takeoff on average.
Related routes
Return trip: PHL to MIA — 77% on time
More flights from Miami
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: MIA → PHL, nonstop flights by US airlines that report to the DOT. How we calculate this.