Great-circle route IAD ↔ BNA. 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 → BNA Washington to Nashville |
22/wk | Daily | Allegiant Air, United Airlines |
| BNA → IAD Nashville to Washington |
22/wk | Daily | Allegiant Air, 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 238,469 passengers on 2,247 flights between IAD and BNA — about 654 a day — filling 76% of the 313,671 seats flown. United Air Lines Inc. carried the most passengers (88%).
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–BNA nonstop, including Allegiant Air, United Airlines.
Recent scheduled departures on this route have used the Airbus A319, Boeing 737-800, Boeing 737-700, Airbus A320 and 1 other types.
Aircraft assignments change by season and by time of day.
The distance between Washington Dulles International Airport and Nashville International Airport is 541 miles, or 871 kilometres.
| Great-circle distance | 541 mi |
| Kilometres | 871 km |
| Nautical miles | 470 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 44 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 541-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 22 a week from Washington to Nashville and 22 a week from Nashville to Washington, from our most recent schedule sample.
Allegiant Air, United Airlines.
In 2025, airlines reported 238,469 passengers on 2,247 scheduled flights between IAD and BNA — about 654 a day — filling 76% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Airbus A319, Boeing 737-800, Boeing 737-700, Airbus A320. Assignments change by season and by time of day.
