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Cheap Flights from Jacksonville (JAX) to Knoxville (TYS)

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      Travellers and cabin class, 1 Adult, Economy
      Allegiant Air

      Compare Jacksonville International to Knoxville flight deals

      Find the cheapest month or even day of the year to fly to Knoxville

      Book the best Knoxville fare with no extra fees

      Flight deals from Jacksonville International to Knoxville

      Looking for a cheap last-minute deal or the best return flight from Jacksonville International Airport to Knoxville Airport? If you want to travel next month, return fares start from $143. Find the lowest prices on one-way and return tickets right here.
      Knoxville.$121 per passenger.Departing Sun, 1 Nov, returning Thu, 5 Nov.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Jacksonville International on Sun, 1 Nov, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Thu, 5 Nov, arriving in Jacksonville International.Price includes taxes and charges.From $121, select.
      Knoxville.$123 per passenger.Departing Sun, 13 Dec, returning Thu, 17 Dec.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Jacksonville International on Sun, 13 Dec, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Thu, 17 Dec, arriving in Jacksonville International.Price includes taxes and charges.From $123, select.
      Knoxville.$131 per passenger.Departing Thu, 29 Oct, returning Thu, 5 Nov.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Jacksonville International on Thu, 29 Oct, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Thu, 5 Nov, arriving in Jacksonville International.Price includes taxes and charges.From $131, select.
      Knoxville.$132 per passenger.Departing Sun, 27 Sep, returning Sun, 11 Oct.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Jacksonville International on Sun, 27 Sep, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Sun, 11 Oct, arriving in Jacksonville International.Price includes taxes and charges.From $132, select.
      Knoxville.$143 per passenger.Departing Sun, 18 Oct, returning Thu, 29 Oct.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Jacksonville International on Sun, 18 Oct, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Thu, 29 Oct, arriving in Jacksonville International.Price includes taxes and charges.From $143, select.
      Knoxville.$149 per passenger.Departing Thu, 11 Feb, returning Sun, 14 Feb.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Jacksonville International on Thu, 11 Feb, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Sun, 14 Feb, arriving in Jacksonville International.Price includes taxes and charges.From $149, select.
      Knoxville.$163 per passenger.Departing Thu, 25 Mar, returning Thu, 8 Apr.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Jacksonville International on Thu, 25 Mar, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Thu, 8 Apr, arriving in Jacksonville International.Price includes taxes and charges.From $163, select.
      Knoxville.$169 per passenger.Departing Thu, 8 Apr, returning Thu, 22 Apr.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Jacksonville International on Thu, 8 Apr, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Thu, 22 Apr, arriving in Jacksonville International.Price includes taxes and charges.From $169, select.
      Knoxville.$170 per passenger.Departing Sun, 13 Dec, returning Sun, 3 Jan.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Jacksonville International on Sun, 13 Dec, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Sun, 3 Jan, arriving in Jacksonville International.Price includes taxes and charges.From $170, select.
      Knoxville.$172 per passenger.Departing Thu, 19 Nov, returning Sun, 6 Dec.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Jacksonville International on Thu, 19 Nov, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Sun, 6 Dec, arriving in Jacksonville International.Price includes taxes and charges.From $172, select.
      Knoxville.$178 per passenger.Departing Thu, 25 Feb, returning Thu, 11 Mar.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Jacksonville International on Thu, 25 Feb, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Thu, 11 Mar, arriving in Jacksonville International.Price includes taxes and charges.From $178, select.
      Knoxville.$180 per passenger.Departing Sun, 20 Sep, returning Thu, 24 Sep.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Jacksonville International on Sun, 20 Sep, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Thu, 24 Sep, arriving in Jacksonville International.Price includes taxes and charges.From $180, select.
      Knoxville.$217 per passenger.Departing Thu, 18 Mar, returning Thu, 25 Mar.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Jacksonville International on Thu, 18 Mar, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Thu, 25 Mar, arriving in Jacksonville International.Price includes taxes and charges.From $217, select.
      Knoxville.$376 per passenger.Departing Fri, 29 Jan, returning Mon, 1 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Jacksonville International on Fri, 29 Jan, arriving in Knoxville.Inbound indirect flight with Delta, departs from Knoxville on Mon, 1 Feb, arriving in Jacksonville International.Price includes taxes and charges.From $376, select.
      Knoxville.$392 per passenger.Departing Fri, 8 Jan, returning Fri, 22 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Jacksonville International on Fri, 8 Jan, arriving in Knoxville.Inbound indirect flight with Delta, departs from Knoxville on Fri, 22 Jan, arriving in Jacksonville International.Price includes taxes and charges.From $392, select.
      Knoxville.$445 per passenger.Departing Fri, 11 Jun, returning Fri, 25 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Jacksonville International on Fri, 11 Jun, arriving in Knoxville.Inbound indirect flight with Delta, departs from Knoxville on Fri, 25 Jun, arriving in Jacksonville International.Price includes taxes and charges.From $445, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Jacksonville International to Knoxville found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from Jacksonville International to Knoxville

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Jacksonville International to Knoxville flights are currently cheapest in November.
      Sep
      from $180
      Oct
      from $143
      Nov
      from $121
      Dec
      from $123
      Jan
      from $392
      Feb
      from $149
      Mar
      from $217
      Apr
      from $169
      May
      from $515
      Jun
      from $445
      Jul
      Find prices
      Aug
      Find prices

      Direct flights from Jacksonville International to Knoxville

      Allegiant Air

      Jacksonville International to Knoxville: Alternative routes

      Compare routes from Jacksonville International to Knoxville below. You may find an airport to fly into that's cheaper, faster, or easier than Knoxville.

      Knoxville

      18km from central Knoxville
      ClosestCheapest
      from $121
      Search flights

      Jacksonville to Knoxville: Flight information

      The things to know before you go.
      Cheapest flight found$121
      Cheapest month to flyNovember
      Average flight time1 hr, 22 mins
      Most popular airlineAllegiant Air
      Average flights per week3

      Finding cheap flights from Jacksonville International to Knoxville: Frequently asked questions

      The best price we found for a return flight from Jacksonville International to Knoxville is $121. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      1 hour and 22 minutes is the average flight time from Jacksonville International to Knoxville.
      Allegiant Air flies direct from Jacksonville International to Knoxville.
      As of September 2026, there are 3 flights per week flying from Jacksonville International to Knoxville.
      The cheapest month to fly from Jacksonville International to Knoxville is usually November.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Jacksonville International Airport to Knoxville Airport on Sunday, 1 November 2026.
      Yes – the average flight time is 1 hour and 22 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Knoxville but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Knoxville is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Allegiant Air offers the cheapest flight tickets to Knoxville.

      Travelling from Jacksonville International Airport (JAX) to Knoxville Airport (TYS): what you need to know

      • The average time for a direct flight from Jacksonville International Airport to Knoxville Airport is 1 hour 20 minutes.

      • Get to the airport on time so you don't miss your JAX to TYS flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

      • Travelling during a peak month like July? Public holidays and other popular periods can mean longer queues at check-in and security. Play things extra safe and arrive up to four hours ahead of international flights and two hours before domestic departures.

      • Allegiant Air offers direct flights from Jacksonville International Airport to Knoxville Airport. Book with this popular airline, then get ready to check out the sights in Knoxville — and maybe even more of the United States if you have time.

      • The majority of passengers choose to travel with Allegiant Air on this route.

      • Allegiant Air is the most punctual carrier that offers JAX to TYS flights, with 71.05% of its services landing on time.

      • We make it a piece of cake to book a flight with a stopover. To see all your options for tickets from Jacksonville International Airport to Knoxville Airport, uncheck 'Direct flights only.' Then, choose a flight with a stop long enough to explore your chosen city. Some great stopovers between JAX and TYS include:

        • Atlanta Hartsfield-Jackson Airport

        • Charlotte Douglas Airport

        • Washington Dulles Airport

      Handy information about Jacksonville International Airport (JAX)

      • JAX is located at 2400 Yankee Clipper Drive.

      • Jacksonville International Airport gets top marks for its on-time performance. 81% of flights that depart JAX arrive at their destination on time.

      • Central Jacksonville to Jacksonville International Airport is approximately 29 kilometres. Depending on traffic, it'll take about 25 minutes to get there if you're driving, ride-sharing or catching a taxi.

      • The journey on public transport takes about 1 hour 15 minutes.

      • Booked an early flight from Jacksonville International Airport to Knoxville Airport? Avoid the stress of rushing to the terminal (and catch some extra z's) by choosing one of these stays close to JAX:

      Arriving at Knoxville Airport (TYS)

      When to fly to Knoxville Airport (TYS)

      • The quietest month for a flight from Jacksonville International Airport to Knoxville Airport is March, while October is the most popular. Choose the ideal time to go to Knoxville based on whether you prefer a more fast-paced or easygoing experience.

      • The warmest month in Knoxville is July, with temperatures ranging between 17ºC (63ºF) and 32ºC (90ºF). Lock in your flights from Jacksonville International Airport to Knoxville Airport in this month if this is the type of weather you like.

      • January sees average temperatures of between -6ºC (21ºF) and 11ºC (52ºF). Look for cheap tickets from JAX to TYS around that time if you like cooler conditions.

      Explore more of the United States

      • You've seen Knoxville, now it's time to explore other parts of the United States. Travel about 451 kilometres north to Columbus to check off its top attractions. From Franklin Park Conservatory and Botanical Gardens to Whetstone Park / Park of Roses and Ohio Theatre, you'll have a packed itinerary ahead.

      • If there's time to check out another well-known destination in the United States, consider Indianapolis, about 467 kilometres north-west of Knoxville. Lucas Oil Stadium, Eiteljorg Museum and The Children's Museum of Indianapolis are the start of reasons to visit.

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      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.