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: September 4 2026 | From $40 Seen: 3 hrs ago |
| Knoxville (TYS) | Philadelphia (PHL) | One-way / Economy | Departing: August 21 2026 | From $55 Seen: 4 hrs ago |
| Knoxville (TYS) | Philadelphia (PHL) | One-way / Economy | Departing: October 16 2026 | From $39 Seen: 17 hrs ago |
| Knoxville (TYS) | Philadelphia (PHL) | One-way / Economy | Departing: October 26 2026 | From $49 Seen: 20 hrs ago |
| Knoxville (TYS) | Philadelphia (PHL) | One-way / Economy | Departing: November 2 2026 | From $49 Seen: 1 day ago |
| Knoxville (TYS) | Philadelphia (PHL) | One-way / Economy | Departing: October 30 2026 | From $49 Seen: 1 day 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.
