Best Time to Fly HOU to LGA: On-Time Stats by Hour & Airline
William P Hobby → LaGuardia
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 64.0% of Houston (HOU) to New York (LGA) flights arrived on time (1,358 scheduled flights). That is 13.6 points below the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
September has been the best month (88% on time) and Thursday the weakest day of the week (66%).
2.6% of flights were cancelled, versus 1.8% nationally.
HOU 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 |
|---|---|---|---|---|
| Southwest Airlines | 64.0% | 63 min | 2.6% | 1,358 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly HOU to LGA
On-time arrival % by scheduled departure hour (local time), 2,717 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 94.4% | 0.4% | 269 |
| 6am–7am | 92.5% | 3.1% | 292 |
| 7am–8am | 87.1% | 1.4% | 71 |
| 8am–9am | 88.2% | 0.7% | 284 |
| 9am–10am | 87.8% | 2.0% | 151 |
| 10am–11am | 63.3% | 2.1% | 94 |
| 11am–12pm | 66.4% | 1.6% | 373 |
| 12pm–1pm | 68.2% | 2.1% | 238 |
| 1pm–2pm | 73.9% | 8.0% | 75 |
| 2pm–3pm | 31.5% | 1.2% | 83 |
| 3pm–4pm | 19.7% | 1.6% | 64 |
| 4pm–5pm | Limited data | 7 | |
| 5pm–6pm | 43.4% | 2.8% | 181 |
| 6pm–7pm | 62.4% | 2.3% | 443 |
| 7pm–8pm | 51.7% | 3.3% | 92 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on HOU 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) | 86.0% | +13.1 pts | 0.0% | 50 |
| Christmas & New Year (Dec 20 - Jan 3) | 67.0% | -5.9 pts | 1.7% | 120 |
| Summer peak (Jun 15 - Aug 15) | 65.5% | -7.4 pts | 2.8% | 460 |
| All other days | 72.9% | — | 2.0% | 2,087 |
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).