Great-circle route IAH ↔ LGA. Faint dots are other airports, for geographic context. Download this map — free to reuse with a link back to this page.
Frequencies below are per direction, from our most recent schedule sample.
| Direction | Frequency | Days | Airlines |
|---|---|---|---|
| IAH → LGA Houston to New York |
79/wk | Daily | Delta Air Lines, United Airlines |
| LGA → IAH New York to Houston |
— | — | Delta Air Lines, United Airlines |
Where a direction shows “—” we track it as an operating nonstop but hold no schedule sample for it — we would rather show nothing than guess.
In 2025, airlines reported 1,097,390 passengers on 8,625 flights between IAH and LGA — about 3,008 a day — filling 85% of the 1,291,949 seats flown. United Air Lines Inc. carried the most passengers (61%).
Source: US DOT T-100 segment reports — actual airline-reported traffic, scheduled service only, both directions combined. Cargo and charter flights excluded.
2 airlines fly the IAH–LGA nonstop, including Delta Air Lines, United Airlines.
Recent scheduled departures on this route have used the Airbus A220-300, Boeing 737-800, Boeing 737.
Aircraft assignments change by season and by time of day.
The distance between George Bush Intercontinental Houston Airport and La Guardia Airport is 1,415 miles, or 2,277 kilometres.
| Great-circle distance | 1,415 mi |
| Kilometres | 2,277 km |
| Nautical miles | 1,230 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. 2 airlines fly the route nonstop, with about 79 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 3h 21m in the air. That is a great-circle estimate from the 1,415-mile distance, not a scheduled block time — an airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
Delta Air Lines, United Airlines.
In 2025, airlines reported 1,097,390 passengers on 8,625 scheduled flights between IAH and LGA — about 3,008 a day — filling 85% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Airbus A220-300, Boeing 737-800, Boeing 737. Assignments change by season and by time of day.
