Philadelphia to Knoxville Flights on Allegiant from $55*
expand_more
1 Passenger
expand_morePromo Code
expand_moretoday
today
*Modifying this information may result in a different fare
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 7 2026 | From $55 Seen: 1 hour ago |
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: June 14 2026 | From $62 Seen: 1 hour ago |
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: June 4 2026 | From $69 Seen: 1 hour ago |
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: June 18 2026 | From $77 Seen: 1 hour ago |
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: July 23 2026 | From $94 Seen: 12 hrs ago |
| Philadelphia (PHL) | Knoxville (TYS) | One-way / Economy | Departing: July 26 2026 | From $103 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.
