Washington, D.C. to Knoxville Flights on Allegiant from $40*
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Flights from Washington, D.C. to Knoxville
$
*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 Washington, D.C. to Knoxville
$
From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Washington, D.C. (IAD) | Knoxville (TYS) | One-way / Economy | Departing: April 12 2026 | From $40 Seen: 11 hrs ago |
| Washington, D.C. (IAD) | Knoxville (TYS) | One-way / Economy | Departing: May 10 2026 | From $40 Seen: 13 hrs ago |
| Washington, D.C. (IAD) | Knoxville (TYS) | One-way / Economy | Departing: July 31 2026 | From $40 Seen: 3 hrs ago |
| Washington, D.C. (IAD) | Knoxville (TYS) | One-way / Economy | Departing: May 17 2026 | From $40 Seen: 17 hrs ago |
| Washington, D.C. (IAD) | Knoxville (TYS) | One-way / Economy | Departing: May 7 2026 | From $40 Seen: 13 hrs ago |
| Washington, D.C. (IAD) | Knoxville (TYS) | One-way / Economy | Departing: May 25 2026 | From $40 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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