Philadelphia to Knoxville Flights on Allegiant from $44*
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Flights from Philadelphia 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 Philadelphia to Knoxville
$
From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: June 4 2026 | From $44 Seen: 1 day ago |
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: June 11 2026 | From $55 Seen: 1 day ago |
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: May 31 2026 | From $44 Seen: 1 hour ago |
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: August 2 2026 | From $49 Seen: 15 hrs ago |
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: August 24 2026 | From $49 Seen: 9 hrs ago |
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: May 24 2026 | From $49 Seen: 1 hour 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.
To explore other Allegiant destinations, visit our route map. To earn 3X points on Allegiant purchases, learn more about our Allways Rewards Visa® card.
