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Cheap Flights from Knoxville to Phoenix starting at S$ 130

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Cheapest time to fly from Knoxville to Phoenix

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.
Cheapest Airlines flying from Knoxville to Phoenix

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From S$ 130
Allegiant Air
From S$ 137
United Airlines
From S$ 288
American Airlines
From S$ 389
Delta Air Lines
From S$ 399
ANA airlines

Find more flights and airlines

Alternative Routes from Knoxville to Phoenix

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Knoxville to Phoenix.

  • Cheapest
    Frontier Airlines
    TYS
    10:51
    16h 14m
    1 transfer
    PHX
    00:05
    Mcghee Tyson Airport - Sky Harbor International Airport
    Wed, Apr 24Frontier Airlines
    S$ 130
  • United Airlines
    TYS
    07:13
    9h 59m
    1 transfer
    AZA
    14:12
    Mcghee Tyson Airport - Phoenix-Mesa Gateway Airport
    Fri, Apr 5United Airlines
    S$ 482
  • United Airlines
    TYS
    07:13
    9h 59m
    1 transfer
    AZA
    14:12
    Mcghee Tyson Airport - Phoenix-Mesa Gateway Airport
    Fri, Apr 5United Airlines
    S$ 482
    Find More Flights

Frequently Asked Questions

  • When to buy flight tickets from Knoxville (TYS) to Phoenix (PHX) the cheapest?

    Airlines adjust prices for flights from Knoxville to Phoenix based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much is a flight from Knoxville (TYS) to Phoenix (PHX) cost?

    According to Trip.com's data, the lowest price is around S$ 787.
  • How long is a flight from Knoxville (TYS) to Phoenix (PHX)?

    It takes about 4 hours 24 minutes to fly from Knoxville (TYS) to Phoenix (PHX).
  • What are the most popular airlines that fly from Knoxville (TYS) to Phoenix (PHX)?

    Airlines with flights from Knoxville (TYS) to Phoenix (PHX): Allegiant Air.
  • What's the most popular airline for direct flights from Knoxville (TYS) to Phoenix (PHX)?

    Allegiant Air operates 1 direct flights from Knoxville (TYS) to Phoenix (PHX).
  • How many airports in Phoenix?

Find cheapest flight ticket from Knoxville to Phoenix

Cheapest direct flight price

S$ 129

Cheapest return ticket price

S$ 284

Cheapest month

October

Peak season for travel

June