| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Best option Boston Knoxville | Outbound 07/08/25 direct G41425 02h 21min | Return 08/07/25 direct G41430 02h 15min |  Allegiant Air |  | $87 | ||
| Boston Knoxville | Outbound 11/03/25 1 Stopover (BWI, IAD) NK2072, G43057 09h 14min | Return 11/12/25 2 Stopovers (EWR, ATL) G41398, NK0742, NK1180 14h 52min |  Spirit Airlines, Allegiant Air |  | $198 | ||
| Boston Knoxville | Outbound 09/04/25 direct G41396 02h 22min | Return 09/28/25 direct G41397 02h 17min | Allegiant Air | | $91 | ||
| Boston Knoxville | Outbound 07/08/25 direct G41425 02h 21min | Return 08/07/25 direct G41430 02h 15min | Allegiant Air |  | $100 | ||
| Boston Knoxville | Outbound 07/08/25 direct G41425 02h 21min | Return 08/07/25 direct G41430 02h 15min | Allegiant Air |  | ? | $103 | |
| Boston Knoxville | Outbound 07/08/25 direct G41425 02h 21min | Return 08/07/25 direct G41430 02h 15min | Allegiant Air |  | $122 | ||
| Boston Knoxville | Outbound 07/02/25 direct G41434 02h 21min | Return 07/25/25 1 Stopover (IAD, BWI) G41397, NK3075 10h 44min | Allegiant Air | | $175 | ||
| Boston Knoxville | Outbound 10/10/25 1 Stopover (BWI, IAD) NK2072, G41429 17h 16min | Return 11/04/25 direct G41397 02h 13min | Spirit Airlines, Allegiant Air | | $191 | ||
| Boston Knoxville | Outbound 07/02/25 direct G41434 02h 21min | Return 07/25/25 1 Stopover (MCO) G43039, F93348 26h 35min | Allegiant Air | | ? | $232 | |
| Boston Knoxville | Outbound 10/10/25 1 Stopover (IAD) UA1734, G41429 17h 46min | Return 11/04/25 direct G41397 02h 13min |  United Airlines, Allegiant Air | | ? | $272 |
Tips and tricks to help you find cheap flights from Boston to Knoxville
Favorite airline: American Airlines
90 % of bookings on this flight route are made with American Airlines, United Airlines and Spirit Airlines.
American Airlines
45 %
United Airlines
27 %
Spirit Airlines
18 %