Miami International Airport (MIA) delays & on-time performance
Miami, Florida · 97 nonstop destinations · 10 airlines · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at MIA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
On-time arrivals
74%
arrived < 15 min late
Cancelled
1.6%
1,756 flights
Avg arrival delay
20 min
71 min when late
Departed on time
74%
avg taxi-out 21 min
Figures cover 111,186 departures from MIA; on-time is measured at arrival. Arrivals into MIA were on time 77% of the time.
Key facts
- Flights departing Miami International Airport (MIA) arrived on time 74% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.6% were cancelled, and 10% arrived an hour or more late.
- Envoy Air was the most punctual airline here (83% on time); Southwest Airlines was the least (70%).
- Departures scheduled around 6am did best (91% on time); around 5pm did worst (63%).
- The largest source of delay minutes was late-arriving aircraft (40%).
Most delayed routes from MIA
Lowest on-time arrival rates among regularly flown routes.
- MEM · Memphis61%559 flts
- SDF · Louisville65%430 flts
- SEA · Seattle67%1,212 flts
- LGA · New York68%5,990 flts
- MDW · Chicago68%503 flts
- CHS · Charleston69%1,006 flts
- SAT · San Antonio69%483 flts
- DAL · Dallas69%419 flts
- BOS · Boston70%3,381 flts
- SFO · San Francisco70%1,746 flts
Most reliable routes from MIA
Highest on-time arrival rates among regularly flown routes.
- EYW · Key West86%1,250 flts
- BHM · Birmingham83%650 flts
- IAD · Washington83%625 flts
- TLH · Tallahassee83%1,191 flts
- PNS · Pensacola83%1,210 flts
- SAV · Savannah81%789 flts
- GSP · Greer80%727 flts
- GSO · Greensboro/High Point80%519 flts
- CVG · Cincinnati79%983 flts
- CLT · Charlotte78%3,722 flts
Best airline at MIA
Departures from this airport, ranked by on-time arrival.
| Airline | On time | Cancelled | Avg delay | Routes | Flights |
|---|---|---|---|---|---|
| Envoy Air | 83% | 0.8% | 10 min | 57 | 14,139 |
| United Airlines | 78% | 1.0% | 19 min | 6 | 6,821 |
| Delta Air Lines | 74% | 2.2% | 21 min | 16 | 11,640 |
| JetBlue | 74% | 0.0% | 12 min | 1 | 35 |
| Frontier Airlines | 74% | 2.3% | 23 min | 23 | 4,324 |
| American Airlines | 72% | 1.5% | 21 min | 67 | 64,171 |
| Alaska Airlines | 71% | 1.3% | 17 min | 2 | 533 |
| Southwest Airlines | 70% | 1.1% | 18 min | 17 | 5,348 |
| Republic Airways | 70% | 1.4% | 27 min | 50 | 991 |
| Spirit Airlines | 66% | 4.8% | 27 min | 17 | 3,184 |
Best time to fly out of MIA
On-time arrival rate by scheduled departure hour (local time).
- 6am91%5,463 flts
- 7am89%7,433 flts
- 8am89%8,867 flts
- 9am85%4,760 flts
- 10am81%3,051 flts
- 11am77%3,951 flts
- 12pm75%4,652 flts
- 1pm74%4,329 flts
- 2pm72%5,291 flts
- 3pm68%7,527 flts
- 4pm66%6,923 flts
- 5pm63%7,315 flts
- 6pm64%6,510 flts
- 7pm65%9,689 flts
- 8pm66%7,762 flts
- 9pm70%9,786 flts
- 10pm69%6,301 flts
Monthly trend
Why departures were late
- Late-arriving aircraft40%
- Airline (crew, maintenance, cleaning, fueling)32%
- Air traffic control & airport congestion22%
- Extreme weather6%
- Security0%
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.