Great-circle route IAH ↔ DTW. 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 → DTW Houston to Detroit |
53/wk | Daily | Delta Air Lines, Frontier Airlines, United Airlines |
| DTW → IAH Detroit to Houston |
54/wk | Daily | Delta Air Lines, 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 615,516 passengers on 5,648 flights between IAH and DTW — about 1,687 a day — filling 81% of the 760,977 seats flown. Delta Air Lines Inc. carried the most passengers (46%).
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–DTW nonstop, including Delta Air Lines, Frontier Airlines, United Airlines.
Recent scheduled departures on this route have used the Airbus A319, Embraer 175, Airbus A320, Boeing 737 and 1 other types.
Aircraft assignments change by season and by time of day.
The distance between George Bush Intercontinental Houston Airport and Detroit Metropolitan Wayne County Airport is 1,076 miles, or 1,732 kilometres.
| Great-circle distance | 1,076 mi |
| Kilometres | 1,732 km |
| Nautical miles | 935 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 107 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 2h 42m in the air. That is a great-circle estimate from the 1,076-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 53 a week from Houston to Detroit and 54 a week from Detroit to Houston, from our most recent schedule sample.
Delta Air Lines, Frontier Airlines, United Airlines.
In 2025, airlines reported 615,516 passengers on 5,648 scheduled flights between IAH and DTW — about 1,687 a day — filling 81% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Airbus A319, Embraer 175, Airbus A320, Boeing 737. Assignments change by season and by time of day.
