Great-circle route IAD ↔ 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.
| Direction | Frequency | Days | Airlines |
|---|---|---|---|
| IAD → DTW Washington to Detroit |
47/wk | Daily | Delta Air Lines, United Airlines |
| DTW → IAD Detroit to Washington |
47/wk | Daily | 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 260,980 passengers on 4,441 flights between IAD and DTW — about 715 a day — filling 79% of the 330,779 seats flown. SkyWest Airlines Inc. carried the most passengers (39%).
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 IAD–DTW nonstop, including Delta Air Lines, United Airlines.
Recent scheduled departures on this route have used the Bombardier CRJ900, Embraer 175, Boeing 717-200.
Aircraft assignments change by season and by time of day.
The distance between Washington Dulles International Airport and Detroit Metropolitan Wayne County Airport is 383 miles, or 616 kilometres.
| Great-circle distance | 383 mi |
| Kilometres | 616 km |
| Nautical miles | 333 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 94 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 1h 24m in the air. That is a great-circle estimate from the 383-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 47 a week from Washington to Detroit and 47 a week from Detroit to Washington, from our most recent schedule sample.
Delta Air Lines, United Airlines.
In 2025, airlines reported 260,980 passengers on 4,441 scheduled flights between IAD and DTW — about 715 a day — filling 79% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Bombardier CRJ900, Embraer 175, Boeing 717-200. Assignments change by season and by time of day.
