Great-circle route IAH ↔ CLT. 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. The two directions are not identical — that is normal on scheduled routes.
| Direction | Frequency | Days | Airlines |
|---|---|---|---|
| IAH → CLT Houston to Charlotte |
59/wk | Daily | American Airlines, Frontier Airlines, United Airlines |
| CLT → IAH Charlotte to Houston |
51/wk | Daily | American Airlines, Frontier Airlines, 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 732,089 passengers on 5,723 flights between IAH and CLT — about 2,007 a day — filling 79% of the 924,534 seats flown. American Airlines Inc. carried the most passengers (67%).
Source: US DOT T-100 segment reports — actual airline-reported traffic, scheduled service only, both directions combined. Cargo and charter flights excluded.
3 airlines fly the IAH–CLT nonstop, including American Airlines, Frontier Airlines, United Airlines.
Recent scheduled departures on this route have used the Boeing 737-800, Embraer 175, Airbus A321, Airbus A320 NEO and 1 other types.
Aircraft assignments change by season and by time of day.
The distance between George Bush Intercontinental Houston Airport and Charlotte Douglas International Airport is 911 miles, or 1,466 kilometres.
| Great-circle distance | 911 mi |
| Kilometres | 1,466 km |
| Nautical miles | 792 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. 3 airlines fly the route nonstop, with about 110 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 2h 23m in the air. That is a great-circle estimate from the 911-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.
About 59 a week from Houston to Charlotte and 51 a week from Charlotte to Houston, from our most recent schedule sample.
American Airlines, Frontier Airlines, United Airlines.
In 2025, airlines reported 732,089 passengers on 5,723 scheduled flights between IAH and CLT — about 2,007 a day — filling 79% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Boeing 737-800, Embraer 175, Airbus A321, Airbus A320 NEO. Assignments change by season and by time of day.
