Knoxville to Philadelphia Flights on Allegiant from $39*
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Flights from Knoxville to Philadelphia
$
*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 Philadelphia
$
From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Knoxville (TYS) | Philadelphia (PHL) | One-way / Economy | Departing: December 7 2026 | From $39 Seen: 17 hrs ago |
| Knoxville (TYS) | Philadelphia (PHL) | One-way / Economy | Departing: February 1 2027 | From $39 Seen: 1 day ago |
| Knoxville (TYS) | Philadelphia (PHL) | One-way / Economy | Departing: November 20 2026 | From $44 Seen: 16 hrs ago |
| Knoxville (TYS) | Philadelphia (PHL) | One-way / Economy | Departing: November 13 2026 | From $55 Seen: 1 day ago |
| Knoxville (TYS) | Philadelphia (PHL) | One-way / Economy | Departing: December 4 2026 | From $55 Seen: 17 hrs ago |
| Knoxville (TYS) | Philadelphia (PHL) | One-way / Economy | Departing: December 18 2026 | From $55 Seen: 12 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.
