Best Time to Fly MIA to LAX: On-Time Stats by Hour & Airline
Miami International → Los Angeles International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 75.4% of Miami (MIA) to Los Angeles (LAX) flights arrived on time (3,250 scheduled flights). That is 2.3 points below the national average of 77.6%.
Among 2 airlines, Delta Air Lines led with 78.8% on time and American Airlines was last with 74.8%.
Over 24 months, Wednesday was the most reliable day (80% on time) and July the worst month (66%).
The cancellation rate was 0.7% (US average 1.8%).
MIA to LAX on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Lines | 78.8% | 82 min | 1.6% | 494 |
| American Airlines | 74.8% | 66 min | 0.5% | 2,756 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MIA to LAX
On-time arrival % by scheduled departure hour (local time), 6,446 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 1 | |
| 6am–7am | 85.3% | 0.2% | 437 |
| 7am–8am | 87.1% | 0.3% | 1,155 |
| 8am–9am | 88.1% | 0.1% | 819 |
| 9am–10am | 87.3% | 0.0% | 308 |
| 10am–11am | 83.1% | 0.3% | 309 |
| 12pm–1pm | Limited data | 22 | |
| 1pm–2pm | 73.2% | 1.2% | 329 |
| 2pm–3pm | 65.4% | 0.5% | 387 |
| 3pm–4pm | 69.9% | 0.6% | 175 |
| 4pm–5pm | 71.2% | 0.4% | 237 |
| 5pm–6pm | 63.8% | 0.6% | 343 |
| 6pm–7pm | 67.2% | 1.7% | 354 |
| 7pm–8pm | 67.0% | 0.6% | 550 |
| 8pm–9pm | 67.0% | 0.0% | 355 |
| 9pm–10pm | 66.6% | 0.7% | 593 |
| 10pm–11pm | 50.7% | 1.4% | 72 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MIA to LAX
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 70.6% | -7.8 pts | 0.0% | 126 |
| Christmas & New Year (Dec 20 - Jan 3) | 74.2% | -4.3 pts | 0.0% | 306 |
| Summer peak (Jun 15 - Aug 15) | 68.9% | -9.5 pts | 0.7% | 1,088 |
| All other days | 78.4% | — | 0.5% | 4,926 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).