Great-circle route ATL ↔ 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. The two directions are not identical — that is normal on scheduled routes.
| Direction | Frequency | Days | Airlines |
|---|---|---|---|
| ATL → IAD Atlanta to Washington |
82/wk | Daily | Delta Air Lines, Frontier Airlines, United Airlines |
| IAD → ATL Washington to Atlanta |
74/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 886,651 passengers on 7,817 flights between ATL and IAD — about 2,431 a day — filling 77% of the 1,150,663 seats flown. Delta Air Lines Inc. carried the most passengers (55%).
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 ATL–IAD nonstop, including Delta Air Lines, Frontier Airlines, United Airlines.
Recent scheduled departures on this route have used the Boeing 737-700, Airbus A319, Boeing 737, Boeing 737-800 and 4 other types.
Aircraft assignments change by season and by time of day.
The distance between Hartsfield Jackson Atlanta International Airport and Washington Dulles International Airport is 534 miles, or 859 kilometres.
| Great-circle distance | 534 mi |
| Kilometres | 859 km |
| Nautical miles | 464 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 156 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 1h 41m in the air. That is a great-circle estimate from the 534-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 82 a week from Atlanta to Washington and 74 a week from Washington to Atlanta, from our most recent schedule sample.
Delta Air Lines, Frontier Airlines, United Airlines.
In 2025, airlines reported 886,651 passengers on 7,817 scheduled flights between ATL and IAD — about 2,431 a day — filling 77% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Boeing 737-700, Airbus A319, Boeing 737, Boeing 737-800. Assignments change by season and by time of day.
