Best Time to Fly MIA to LGA: On-Time Stats by Hour & Airline
Miami International → LaGuardia
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 67.7% of Miami (MIA) to New York (LGA) flights arrived on time (5,990 scheduled flights). That is 9.9 points below the national average of 77.6%.
Among 4 airlines, Delta Air Lines led with 73.2% on time and Spirit Airlines was last with 58.2%.
Over 24 months, Tuesday was the most reliable day (75% on time) and July the worst month (56%).
The cancellation rate was 3.9% (US average 1.8%).
MIA to LGA 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 | 73.2% | 64 min | 3.8% | 1,916 |
| American Airlines | 66.0% | 83 min | 3.3% | 3,560 |
| Frontier Airlines | 60.0% | 90 min | 11.8% | 119 |
| Spirit Airlines | 58.2% | 73 min | 7.9% | 391 |
| Republic Airways | Limited data | 4 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MIA to LGA
On-time arrival % by scheduled departure hour (local time), 11,885 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 88.1% | 3.5% | 427 |
| 7am–8am | 89.6% | 1.9% | 1,115 |
| 8am–9am | 87.7% | 1.6% | 697 |
| 9am–10am | 82.2% | 2.1% | 843 |
| 10am–11am | 72.5% | 1.0% | 198 |
| 11am–12pm | 74.8% | 2.5% | 839 |
| 12pm–1pm | 72.7% | 2.3% | 649 |
| 1pm–2pm | 67.1% | 3.4% | 653 |
| 2pm–3pm | 63.7% | 2.9% | 629 |
| 3pm–4pm | 64.5% | 2.7% | 1,291 |
| 4pm–5pm | 63.6% | 4.5% | 839 |
| 5pm–6pm | 59.2% | 3.6% | 1,034 |
| 6pm–7pm | 59.8% | 4.6% | 496 |
| 7pm–8pm | 58.5% | 4.2% | 1,351 |
| 8pm–9pm | 65.0% | 4.0% | 809 |
| 9pm–10pm | Limited data | 15 | |
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 LGA
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) | 76.1% | +4.0 pts | 0.5% | 210 |
| Christmas & New Year (Dec 20 - Jan 3) | 71.2% | -0.9 pts | 2.5% | 518 |
| Summer peak (Jun 15 - Aug 15) | 60.9% | -11.3 pts | 6.2% | 1,883 |
| All other days | 72.1% | — | 2.5% | 9,274 |
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).