Great-circle route MIA ↔ IAD. 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 |
|---|---|---|---|
| MIA → IAD Miami to Washington |
7/wk | Daily | United Airlines |
| IAD → MIA Washington to Miami |
7/wk | Daily | 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 172,410 passengers on 1,206 flights between MIA and IAD — about 473 a day — filling 80% of the 214,243 seats flown. United Air Lines Inc. carried the most passengers (76%).
Source: US DOT T-100 segment reports — actual airline-reported traffic, scheduled service only, both directions combined. Cargo and charter flights excluded.
United Airlines is the only airline flying the MIA–IAD nonstop.
Recent scheduled departures on this route have used the Boeing 737, Boeing 737-800.
Aircraft assignments change by season and by time of day.
The distance between Miami International Airport and Washington Dulles International Airport is 923 miles, or 1,485 kilometres.
| Great-circle distance | 923 mi |
| Kilometres | 1,485 km |
| Nautical miles | 802 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. United Airlines flies the route nonstop, with about 14 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 2h 25m in the air. That is a great-circle estimate from the 923-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 7 a week from Miami to Washington and 7 a week from Washington to Miami, from our most recent schedule sample.
United Airlines.
In 2025, airlines reported 172,410 passengers on 1,206 scheduled flights between MIA and IAD — about 473 a day — filling 80% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Boeing 737, Boeing 737-800. Assignments change by season and by time of day.
