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: 19 hrs ago |
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: April 19 2026 | From $40 Seen: 6 hrs ago |
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: April 16 2026 | From $43 Seen: 8 hrs ago |
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: April 23 2026 | From $40 Seen: 1 day ago |
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: May 14 2026 | From $40 Seen: 1 day ago |
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: April 26 2026 | From $43 Seen: 1 day 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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