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: February 19 2026 | From $40 Seen: 1 day ago |
| Washington, D.C. (IAD) | Knoxville (TYS) | One-way / Economy | Departing: January 11 2026 | From $40 Seen: 1 day ago |
| Washington, D.C. (IAD) | Knoxville (TYS) | One-way / Economy | Departing: December 31 2025 | From $40 Seen: 1 day ago |
| Washington, D.C. (IAD) | Knoxville (TYS) | One-way / Economy | Departing: February 22 2026 | From $40 Seen: 1 day ago |
| Washington, D.C. (IAD) | Knoxville (TYS) | One-way / Economy | Departing: January 18 2026 | From $40 Seen: 17 hrs ago |
| Washington, D.C. (IAD) | Knoxville (TYS) | One-way / Economy | Departing: January 8 2026 | From $40 Seen: 8 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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