Flights from Phoenix to Knoxville from $ 691*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Phoenix (PHX) to Knoxville (TYS)

Mar 2026
From$ 773*
Viewed: 1 day ago
RoundTrip|Economy
Apr 2026
No result for this month
May 2026
From$ 736*
Viewed: 6 hours ago
RoundTrip|Economy
$ 773
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    • Range$ 773

    *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 Phoenix (PHX) to Knoxville (TYS) flights

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    More United deals on Phoenix (PHX) to Knoxville (TYS) flights
    From
    To
    Fare Type
    Dates
    Price
    Phoenix (PHX)Knoxville (TYS)Roundtrip
    |
    Economy    		03/23/26 - 03/30/26

    from

    $ 773

    Viewed: 1 day ago

    Phoenix (PHX)Knoxville (TYS)Roundtrip
    |
    Economy    		03/23/26 - 03/30/26

    from

    $ 1,129

    Viewed: 1 day ago

    Phoenix (PHX)Knoxville (TYS)Roundtrip
    |
    Economy    		06/10/26 - 06/14/26

    from

    $ 691

    Viewed: 6 hours ago

    Phoenix (PHX)Knoxville (TYS)Roundtrip
    |
    Economy    		05/22/26 - 05/24/26

    from

    $ 736

    Viewed: 6 hours ago

    Phoenix (PHX)Knoxville (TYS)Roundtrip
    |
    Economy    		05/22/26 - 05/24/26

    from

    $ 784

    Viewed: 6 hours ago

    Phoenix (PHX)Knoxville (TYS)Roundtrip
    |
    Economy    		06/10/26 - 06/14/26

    from

    $ 1,047

    Viewed: 6 hours ago

    Phoenix (PHX)Knoxville (TYS)Roundtrip
    |
    Economy    		05/22/26 - 05/24/26

    from

    $ 1,151

    Viewed: 6 hours 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.

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