Flights from Pittsburgh to Knoxville from $ 311*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Pittsburgh (PIT) to Knoxville (TYS)

Try alternate month or interact with individual days below in order to find offers.
Mar 2026
No result for this month
Apr 2026
From$ 357*
Viewed: 1 day ago
RoundTrip|Economy
May 2026
From$ 311*
Viewed: 1 day ago
RoundTrip|Economy
$ 357
Displaying fares for March-2026
  • 20

    Fr

    MAR

  • 21

    Sa

  • 22

    Su

  • 23

    Mo

  • 24

    Tu

  • 25

    We

  • 26

    Th

  • 27

    Fr

  • 28

    Sa

  • 29

    Su

  • 30

    Mo

  • 31

    Tu

  • 01

    We

    APR

  • 02

    Th

  • 03

    Fr

  • 04

    Sa

  • 05

    Su

  • 06

    Mo

  • 07

    Tu

  • 08

    We

  • 09

    Th

  • 10

    Fr

  • 11

    Sa

  • 12

    Su

  • 13

    Mo

  • 14

    Tu

  • 15

    We

  • 16

    Th

  • 17

    Fr

  • 18

    Sa

  • 19

    Su

    • Range$ 357-$ 391

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

    More United deals on Pittsburgh (PIT) to Knoxville (TYS) flights

    $
    keyboard_arrow_down
    More United deals on Pittsburgh (PIT) to Knoxville (TYS) flights
    From
    To
    Fare Type
    Dates
    Price
    Pittsburgh (PIT)Knoxville (TYS)Roundtrip
    |
    Economy    		05/16/26 - 05/19/26

    from

    $ 311

    Viewed: 1 day ago

    Pittsburgh (PIT)Knoxville (TYS)Roundtrip
    |
    Economy    		04/12/26 - 04/19/26

    from

    $ 357

    Viewed: 1 day ago

    Pittsburgh (PIT)Knoxville (TYS)Roundtrip
    |
    Economy    		05/22/26 - 05/24/26

    from

    $ 404

    Viewed: 1 day ago

    Pittsburgh (PIT)Knoxville (TYS)Roundtrip
    |
    Economy    		05/16/26 - 05/19/26

    from

    $ 453

    Viewed: 1 day ago

    Pittsburgh (PIT)Knoxville (TYS)Roundtrip
    |
    Economy    		08/23/26 - 08/27/26

    from

    $ 477

    Viewed: 1 day ago

    Pittsburgh (PIT)Knoxville (TYS)Roundtrip
    |
    Economy    		04/12/26 - 04/19/26

    from

    $ 514

    Viewed: 1 day ago

    Pittsburgh (PIT)Knoxville (TYS)Roundtrip
    |
    Economy    		05/22/26 - 05/24/26

    from

    $ 514

    Viewed: 1 day ago

    Pittsburgh (PIT)Knoxville (TYS)Roundtrip
    |
    Economy    		05/16/26 - 05/19/26

    from

    $ 583

    Viewed: 1 day ago

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

    Explore United Airlines's Top-Pick Destinations

    Explore more United flights