Cheapest one-way flights from Knoxville to Washington in April from 26€

AirHint found the following cheapest one-way flights from Knoxville (TYS) to Washington (IAD) in April 2026 (see full year).

One-Way flights

19 Apr Allegiant Air direct
09 Apr Allegiant Air direct
23 Apr Allegiant Air direct
20 Apr Allegiant Air
20 Apr United direct

Also check the deals for return flights from Knoxville to Washington in April.

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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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