Philadelphia to Knoxville Flights on Allegiant from $39*
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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: September 7 2026 | From $69 Seen: 1 day ago |
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: June 4 2026 | From $39 Seen: 18 hrs ago |
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: June 18 2026 | From $44 Seen: 13 hrs ago |
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: June 19 2026 | From $49 Seen: 9 hrs ago |
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: June 21 2026 | From $62 Seen: 13 hrs ago |
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: June 22 2026 | From $69 Seen: 9 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.
To explore other Allegiant destinations, visit our route map. To earn 3X points on Allegiant purchases, learn more about our Allways Rewards Visa® card.
