Great-circle route DFW ↔ IAH. 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 |
|---|---|---|---|
| DFW → IAH Dallas to Houston |
110/wk | Daily | American Airlines, United Airlines |
| IAH → DFW Houston to Dallas |
117/wk | Daily | American 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 1,277,623 passengers on 12,753 flights between DFW and IAH — about 3,502 a day — filling 74% of the 1,734,257 seats flown. American Airlines Inc. carried the most passengers (48%).
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 DFW–IAH nonstop, including American Airlines, United Airlines.
Recent scheduled departures on this route have used the Airbus A319, Boeing 737, Boeing 737-800, Embraer 175 and 4 other types.
Aircraft assignments change by season and by time of day.
The distance between Dallas Fort Worth International Airport and George Bush Intercontinental Houston Airport is 225 miles, or 362 kilometres.
| Great-circle distance | 225 mi |
| Kilometres | 362 km |
| Nautical miles | 196 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 227 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 1h 06m in the air. That is a great-circle estimate from the 225-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 110 a week from Dallas to Houston and 117 a week from Houston to Dallas, from our most recent schedule sample.
American Airlines, United Airlines.
In 2025, airlines reported 1,277,623 passengers on 12,753 scheduled flights between DFW and IAH — about 3,502 a day — filling 74% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Airbus A319, Boeing 737, Boeing 737-800, Embraer 175. Assignments change by season and by time of day.
