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Horrible experience especially due to the splitting headache from the child who was.

The cheapest flight from Knoxville to Phoenix was found 65 days before departure, on average.

I'll never fly Frontier again and will think twice about booking travel with Kayak.

Book at least 3 weeks before departure in order to get a below-average price. High season is considered to be September, October and November. The cheapest month to fly is August. Morning departure is around 33% cheaper than an evening flight, on average. The total flight duration time from Knoxville (TYS) to Phoenix (PHX) is typically 8 hours 46 minutes. This is the average non-stop flight time based upon historical flights for this route.

During this period travelers can expect to fly about 1, miles, or 3, kilometers. Find cheap United flights from Knoxville to Phoenix starting atGreat United flights deals for one-way or return flights from TYS → PHX. Book now & save! 70~ Fly from Knoxville to Phoenix: Search for the best deal on flights from Knoxville (TYS) to Phoenix (PHX). As COVID disrupts travel, a few airlines are offering WAIVING CHANGE FEE for new bookings.

American Airlines Flights from Knoxville (TYS) to Phoenix (PHX) from. As COVID disrupts travel, a few airlines are offering WAIVING CHANGE FEE for new bookings.

During holiday seasons, like Thanksgiving, Christmas, New Year, Independence Day and Memorial Day, book flights from Knoxville, McGhee Tyson Airport to (PHX) Phoenix, Phoenix Sky Harbor International Airport at least 2 months in advance.

Air fares with one or more stops are usually cheaper than Knoxville (TYS) to Phoenix (PHX) direct flights.