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: February 5 2026 | From $40 Seen: 1 day ago |
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: January 8 2026 | From $40 Seen: 16 hrs ago |
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: January 11 2026 | From $40 Seen: 16 hrs ago |
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: December 31 2025 | From $43 Seen: 16 hrs ago |
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: December 24 2025 | From $43 Seen: 3 hrs ago |
| Knoxville (TYS) | Washington, D.C. (IAD) | One-way / Economy | Departing: December 21 2025 | From $43 Seen: 6 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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