Houston (IAH) to New York (LGA): On-Time Performance
Data through July 2026
The calendar drives reliability on IAH–LGA. October 2024 flights landed on schedule 89% of the time, but March 2026 dropped to 54% — a gap of 35 points. Across the full period the route averages 74% on-time against a national 78%. Morning departures also hold up better than evening ones (84% vs 65%), which matters most in the rough months.
- On-time
- 74%
- arrived <15 min late
- Avg delay
- 21 min
- completed flights
- Cancelled
- 2.5%
- Flights/day
- 11
- last 12 months
- Duration
- 3h 33m
- scheduled
- Distance
- 1,416 mi
Best airline from IAH to LGA
4 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 80% | 12 min | 2.4% | 290 |
| Delta Air Lines | 76% | 21 min | 3.3% | 2,788 |
| United Airlines | 72% | 21 min | 1.8% | 4,846 |
| Spirit Airlines | 70% | 25 min | 3.8% | 783 |
Monthly on-time trend
Best time to fly from IAH to LGA
Aim for departures around 8 a.m. (89% on-time); avoid 3 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 71% | 22 min |
| Tuesday | 77% | 17 min |
| Wednesday | 76% | 17 min |
| Thursday | 72% | 21 min |
| Friday | 72% | 22 min |
| Saturdaybest | 80% | 21 min |
| Sunday | 69% | 28 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft25%
- Airline operations27%
- National airspace system42%
- Weather6%
Frequently asked questions
- How often are flights from IAH to LGA delayed?
- 27% of IAH–LGA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 21 minutes.
- Which airline is most reliable from IAH to LGA?
- SkyWest Airlines has the best on-time record on this route at 80%, based on 290 flights. 4 airlines flew IAH–LGA frequently enough to compare in this period.
- What is the best time of day to fly from IAH to LGA?
- Departures around 8 a.m. have the best record (89% on-time), while departures around 3 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from IAH to LGA?
- The scheduled IAH–LGA flight time averages 3h 33m over 1,416 miles. Actual arrival times vary — flights on this route land 15+ minutes late 27% of the time.
- How often are IAH to LGA flights cancelled?
- 2.5% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from IAH to LGA?
- March 2026 was the roughest month in this dataset, with only 54% of arrivals on time. The best was October 2024 at 89%. If your dates are flexible, that 35-point gap is worth planning around.
Explore related pages
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Related guides
Based on 8,707 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.