Knoxville to Washington, D.C. Flights on Allegiant from $40*
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Flights from Knoxville to Washington, D.C.
$
*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply.
Deals from Knoxville to Washington, D.C.
$
From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: June 1 2026 | From $40 Seen: 1 day ago |
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: June 29 2026 | From $40 Seen: 1 day ago |
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: June 26 2026 | From $40 Seen: 1 day ago |
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: May 7 2026 | From $40 Seen: 3 hrs ago |
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: August 6 2026 | From $40 Seen: 20 hrs ago |
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: April 16 2026 | From $40 Seen: 12 hrs ago |
*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply.
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