Best Time to Fly LGA to ATL: On-Time Stats by Hour & Airline
LaGuardia → Hartsfield-Jackson Atlanta International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 76.5% of New York (LGA) to Atlanta (ATL) flights arrived on time (8,411 scheduled flights). That is 1.2 points below the national average of 77.6%.
Among 4 airlines, Delta Air Lines led with 80.0% on time and Frontier Airlines was last with 56.1%.
Over 24 months, Tuesday was the most reliable day (81% on time) and July the worst month (69%).
The cancellation rate was 4.1% (US average 1.8%).
LGA to ATL 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 | 80.0% | 73 min | 3.3% | 4,932 |
| Republic Airways | 77.1% | 67 min | 5.2% | 1,733 |
| Southwest Airlines | 75.2% | 72 min | 2.9% | 815 |
| Frontier Airlines | 56.1% | 104 min | 7.5% | 919 |
| American Airlines | Limited data | 6 | ||
| Spirit Airlines | Limited data | 6 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly LGA to ATL
On-time arrival % by scheduled departure hour (local time), 15,788 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 85.2% | 3.8% | 2,070 |
| 7am–8am | 89.9% | 2.0% | 1,019 |
| 8am–9am | 87.3% | 2.8% | 860 |
| 9am–10am | 87.2% | 2.0% | 1,054 |
| 10am–11am | 84.1% | 1.3% | 712 |
| 11am–12pm | 81.5% | 1.8% | 1,355 |
| 12pm–1pm | 80.6% | 2.3% | 1,340 |
| 1pm–2pm | 77.0% | 1.3% | 945 |
| 2pm–3pm | 77.4% | 1.8% | 380 |
| 3pm–4pm | 76.7% | 2.6% | 699 |
| 4pm–5pm | 65.8% | 3.5% | 1,364 |
| 5pm–6pm | 66.6% | 3.0% | 1,017 |
| 6pm–7pm | 65.2% | 4.2% | 1,045 |
| 7pm–8pm | 68.0% | 4.6% | 480 |
| 8pm–9pm | 65.5% | 6.1% | 1,240 |
| 9pm–10pm | Limited data | 12 | |
| 10pm–11pm | 59.4% | 7.7% | 195 |
| 11pm–12am | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on LGA to ATL
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) | 77.1% | -2.0 pts | 0.7% | 304 |
| Christmas & New Year (Dec 20 - Jan 3) | 76.8% | -2.3 pts | 3.2% | 561 |
| Summer peak (Jun 15 - Aug 15) | 69.8% | -9.2 pts | 6.2% | 2,635 |
| All other days | 79.0% | — | 2.4% | 12,288 |
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).