Cheapest return flights from Knoxville to Washington in April from 61€

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

Return flights

16 Apr - 19 Apr Allegiant Air direct
09 Apr - 12 Apr Allegiant Air direct
16 Apr - 23 Apr Allegiant Air direct
09 Apr - 23 Apr Allegiant Air direct
09 Apr - 19 Apr Allegiant Air direct
30 Apr - 07 May Allegiant Air direct
19 Apr - 07 May Allegiant Air direct
19 Apr - 30 Apr Allegiant Air direct
16 Apr - 30 Apr Allegiant Air direct
23 Apr - 07 May Allegiant Air direct
23 Apr - 30 Apr Allegiant Air direct
10 Apr - 12 Apr Allegiant Air
17 Apr - 19 Apr Allegiant Air

Also check the deals for one-way flights from Knoxville to Washington in April.

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