Cheapest one-way flights from Nashville to Washington in September from $98

AirHint found the following cheapest one-way flights from Nashville (BNA) to Washington (IAD) in September 2025 (see full year).

One-Way flights

03 Sep United direct
22 Sep Spirit Airlines

Also check the deals for return flights from Nashville to Washington in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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