JAX - TYS

$40 Find Cheap Flights from Jacksonville to Knoxville - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Jacksonville to Knoxville departing on 7/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Knoxville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Jacksonville to Knoxville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Jacksonville to Knoxville, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$55
Typical prices: $247-$78
Allegiant Air
Mon 7/13Mon 7/20
JAX - TYS • Non-stop
Cheapest one-way
$40
Typical prices: $46-$258
Allegiant Air
Fri 7/3
JAX - TYS • Non-stop
Nonstop flights
Mon, Thu, Fri, Sun
You can fly direct with Allegiant Air. Average duration is 1h 18m
Direct flights
Direct flights
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Direct flights
Direct flights
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When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 44% price drop
Most popular
Good to know
Good to know
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Good to know
Good to know
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Knoxville!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Jacksonville to Knoxville (JAX-TYS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Jacksonville to Knoxville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Jacksonville to Knoxville

Mon, Jul 13 - Mon, Jul 20
Allegiant Air Logo
8:40 pm - 10:00 pm
JAX
-
TYS
1h 20mnonstop
Allegiant Air Logo
12:40 pm - 2:00 pm
TYS
-
JAX
1h 20mnonstop
$55Allegiant Air
Mon, Jul 13 - Fri, Jul 17
Allegiant Air Logo
8:40 pm - 10:00 pm
JAX
-
TYS
1h 20mnonstop
Allegiant Air Logo
12:40 pm - 2:00 pm
TYS
-
JAX
1h 20mnonstop
$59Allegiant Air
Mon, Jul 13 - Mon, Jul 20
Allegiant Air Logo
8:40 pm - 10:00 pm
JAX
-
TYS
1h 20mnonstop
Allegiant Air Logo
12:40 pm - 2:00 pm
TYS
-
JAX
1h 20mnonstop
$62Allegiant Air
Mon, Jul 13 - Mon, Jul 20
Allegiant Air Logo
8:40 pm - 10:00 pm
JAX
-
TYS
1h 20mnonstop
Allegiant Air Logo
12:40 pm - 2:00 pm
TYS
-
JAX
1h 20mnonstop
$63Allegiant Air
Mon, Jul 13 - Fri, Jul 17
Allegiant Air Logo
8:40 pm - 10:00 pm
JAX
-
TYS
1h 20mnonstop
Allegiant Air Logo
12:40 pm - 2:00 pm
TYS
-
JAX
1h 20mnonstop
$64Allegiant Air
Mon, Jul 20 - Fri, Jul 31
Allegiant Air Logo
8:40 pm - 10:00 pm
JAX
-
TYS
1h 20mnonstop
Allegiant Air Logo
12:40 pm - 2:00 pm
TYS
-
JAX
1h 20mnonstop
$65Allegiant Air
Mon, Jul 13 - Mon, Jul 20
Allegiant Air Logo
8:40 pm - 10:00 pm
JAX
-
TYS
1h 20mnonstop
Allegiant Air Logo
12:40 pm - 2:00 pm
TYS
-
JAX
1h 20mnonstop
$66Allegiant Air
Fri, Jul 17 - Mon, Jul 20
Allegiant Air Logo
8:40 pm - 10:00 pm
JAX
-
TYS
1h 20mnonstop
Allegiant Air Logo
12:40 pm - 2:00 pm
TYS
-
JAX
1h 20mnonstop
$68Allegiant Air
Mon, Jul 13 - Mon, Jul 20
Allegiant Air Logo
8:40 pm - 10:00 pm
JAX
-
TYS
1h 20mnonstop
Allegiant Air Logo
12:40 pm - 2:00 pm
TYS
-
JAX
1h 20mnonstop
$69Allegiant Air
Mon, Jul 13 - Fri, Jul 17
Allegiant Air Logo
8:40 pm - 10:00 pm
JAX
-
TYS
1h 20mnonstop
Allegiant Air Logo
12:40 pm - 2:00 pm
TYS
-
JAX
1h 20mnonstop
$70Allegiant Air
Booking Insights

KAYAK's insights & trends for Jacksonville to Knoxville flights

Get data-powered insights and trends into flights from Jacksonville to Knoxville to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Jacksonville to Knoxville?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Jacksonville to Knoxville departing in July.

What’s the cheapest day of the week to fly from Jacksonville to Knoxville?

The average price of all round-trip flights from Jacksonville to Knoxville clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Jacksonville to Knoxville, look for departures on Fridays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Knoxville, Wednesday is the cheapest day to fly and Tuesday is the most expensive.

What is the cheapest month to fly from Jacksonville to Knoxville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Jacksonville to Knoxville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Jacksonville to Knoxville is August, where tickets cost $82 (return) on average. On the other hand, the most expensive months are January and April, where the average cost of round-trip tickets is $226 and $169 respectively.

How far in advance should I book a flight from Jacksonville to Knoxville?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Jacksonville to Knoxville, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Jacksonville to Knoxville, you should book around 3 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$40
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Jacksonville to Knoxville

When to book flights from Jacksonville to Knoxville

Are your dates flexible? Find out the best times to travel from Jacksonville to Knoxville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Jacksonville to Knoxville

  • What is the cheapest flight from Jacksonville to Knoxville?

    In the last 5 days, the lowest price for a flight from Jacksonville to Knoxville was $40 for a one-way ticket and $55 for a round-trip.

  • Do I need a passport to fly between Jacksonville and Knoxville?

    No, a passport isn't needed to fly from Jacksonville to Knoxville. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Jacksonville to Knoxville?

    On your way to Knoxville, you’ll fly out from Jacksonville. You’ll be landing at Knoxville McGhee Tyson.

  • Which aircraft models fly most regularly from Jacksonville to Knoxville?

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the Jacksonville to Knoxville flight route.

  • Which airline alliances offer flights from Jacksonville to Knoxville?

    oneworld, and SkyTeam are the airline alliances operating flights between Jacksonville and Knoxville, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Jacksonville to Knoxville?

    You can catch a nonstop flight from Jacksonville to Knoxville on on Monday, and Friday.

  • Which is the best airline for flights from Jacksonville to Knoxville, Delta or Southwest?

    The two airlines most popular with KAYAK users for flights from Jacksonville to Knoxville are Delta and Southwest. With an average price for the route of $412 and an overall rating of 7.9, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $265 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Jacksonville to Knoxville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Jacksonville to Knoxville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Jacksonville to Knoxville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knoxville from Jacksonville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Jacksonville to Knoxville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Knoxville with an airline and back to Jacksonville with another airline. Booking your flights between Jacksonville and TYS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Jacksonville to Knoxville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Knoxville from Jacksonville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Jacksonville to Knoxville

  • Looking for a cheap flight? 25% of our users found flights on this route for $41 or less one-way and $89 or less round-trip.

Prefer to fly direct from Jacksonville to Knoxville?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Jacksonville to Knoxville McGhee Tyson.
Find which airlines fly direct from Jacksonville Airport to Knoxville McGhee Tyson Airport, which days they fly and book direct flights.

Direct departures

Jacksonville to Knoxville McGhee Tyson

Monday

Allegiant Air

Allegiant Air

Thursday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

Sunday

Allegiant Air

Allegiant Air

See more direct flights

Direct returns

Knoxville McGhee Tyson to Jacksonville

Monday

Allegiant Air

Allegiant Air

Thursday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

Sunday

Allegiant Air

Allegiant Air

See more direct flights

Reviews of the top 4 airlines serving from Jacksonville to Knoxville

 
See real verified KAYAK customer reviews for airlines flying from Jacksonville to Knoxville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Jacksonville to Knoxville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4235 reviews
8.1Boarding
7.5Entertainment
7.0Food
8.0Comfort
8.6Crew
Airline reviews

Kayak could’ve posted the correct gate number. Almost missed my flight.

8.0 ExcellentValerie, Jun 2026
MCO - ATL
Read more Southwest reviews

Kayak could’ve posted the correct gate number. Almost missed my flight.

Slow boarding, limited food and drink portions. Bad delays and turbulence

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Truly terrible. Will never willingly fly southwest again. Seats are worse than before they switched to assigned seating. One flight attendant was the opposite of helpful (rude, unhelpful, dismissive, and as my stranger seatmate said unprompted: a total prick). This caused me, 15 minutes into the flight, to book an alternate return flight home on a competing airline (first class 1.2k purchase instead of my existing planned flight) just so I would not have to ever be on that aircraft, with that terrible service person, with those horrific seats ever again.

Communication about the delayed flight was poor. We were told to move gates three times but that was bad information. We went from gate 128 to gate 126 and then to gate 123 and back to gate 126. Communication about the delay was bad. Ended up being 1 1/2 hour late getting home.

Southwest continues to do less for more money. Flight attendants used to be fun and friendly. But now it’s like they don’t even see you. Such a shame.

Great flight. Good snacks and drinks. Grateful it was free. The flight from Nashville to louisville, i think her name was Tracy (not sure that's right) super awesome, nice and cheerful. She really enjoyed being at work today! She was the person who scanned the boarding pass on flight wn941. She should be recommended for a raise !

I liked it better when you were truer to your roots Am paying more for less fun

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

Five hour delays every hour, I wish it were all at once

Should never have had to go to Detroit from Orlando back to Tennessee!

Got rerouted from a straight flight from Orlando to Atlanta to Knoxville to a flight from Orlando to Detroit to Knoxville! Seriously!! Flight delay out of Detroit! Long day for what should have been a pretty easy travel day!

Left /arrived on time. Decent seat space. Like the wifi/plugs and entertainment. Windows and tray table were kinda gross. Attendants didn't start snack service til 40mins before landing. Two rows before us, captain came on to say there's turbulence and recalled staff to seats. So, no drink/snack. Later, attendants didn't stop to see if we had trash nor even look our way. Felt invisible! Almost all pilot announcements were not only unintelligible, but so quiet. We had no idea what she said.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

Clean planes and not take my comfort class seat away.

Weather caused a long delay, but the efficiency and updates from the pilot were helpful. We were able to make our connection fortunately.

Planes were clean, no water or snacks on either flight.

Aside from a completely packed plane, I really have no complaints.

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

Seats were very uncomfortable and being charged for snacks and water.........

Allegiant actually impressed me, original inbound flight from PBG was so late they gave us a bird inbound from Des Moines and only left 1h late and gained 40 minutes back in the air. Comfortable flight with no frills but no complaints.

Flight was delayed. Crew was good but hot coffee was not available.

Great. No choice for n/a. No food or entertainment options

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

Not totally their fault- screaming kids that had zero parent intervention.

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

Little time between flight from Dallas to flight to Gainesville. We chose this one, 43 minutes between, because the price for a connection with at least an hour between, was so much higher. Had to ask passengers on the Dallas flight to please allow us to deplane ahead of them. The economy passengers allowed this. We had to walk very fast to the next gate, 35 gates away. Thankfully all in the same terminal. Getting to the small Gainesville plane was a little confusing as you enter an area that is boarding many small planes at the same time. We stood in the wrong line for about 15 seconds before realizing it was not our Gainesville flight. Since I had boarded at this gate in the past, I knew to check the signs carefully so we weren’t lost. The first class seat experience was wonderful. I really enjoyed the upgrade. We were offered an alcohol drink as soon as we sat down. I got something different but it was a great gesture especially since we really had to hurry to make the flight. We had packed expecting we might miss this connection, but made it. Our luggage didn’t miss the flight. American Airlines delivered our bags to our home the next day. That was very convenient!

It was what i expected. I like the movies you can access from your phone. It would be nice if there was a gluten free snack offered. But I did bring my own snack knowing there would not be a gluten free option

There were flight delays making our flight arrive at our destination after midnight didn’t seem to have enough crew or airplanes for the flights laid over in Dallas should’ve had plenty of time to make it to our next flight only made it because that flight was also delayed because our plane wasn’t even at the airport yet overall have not had a good experience on American

Requested early boarding to disinfect seat, tray table, etc. before general boarding. Instructed to board after wheelchair passengers. Waited on jet bridge behind 12 wheelchair passengers. Stopped immediately after entering plane to wait for gate agent in rear of plane cleaning a seat that was wet, got to my row and found both seats adjacent to mine already occupied, with the lack of room making it impossible for me to clean my own space and defeating the purpose of my boarding early. Cleaned the armrests and tray table as best I could.

We had several flights and they were all on-time and flawless

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

The seats need better cushioning for a nearly 5-hour flight, it was a bit uncomfortable. I'm glad American has free wi-fi but there were was a bout 30 minutes in the middle of the flight when there was no connection which was frustrating.

My original flight got delayed day of so I had to rebook it from one layover to two layovers. The flight also left earlier which was a slight inconvenience but manageable. Then my first connection flight got delayed 3 separate times for a total of 2 hours delayed, causing me to miss my second connection flight back to Santa Barbara. Now, because of this missed flight, I am missing my college classes that I pay for.

Flight: Started on time. Comfortable flight. Arrived on time. Crew: Very cordial and helpful. Drinks and snack was served with a smile. Overall enjoyed the trip. Regards, Hari Doss Chanchala Doss

This short sector between Miami and JFK was undertaken purely for business purposes, with efficiency as the primary objective rather than a full inflight experience. Overall, the journey met its intended purpose; however, the ground experience at Miami stood out significantly. During check-in, I was unable to link my frequent flyer details from Qatar Airways (oneworld alliance) through either the self-service kiosk or web check-in. The situation was handled exceptionally well by the check-in agent, who demonstrated remarkable ownership. She coordinated across multiple counters, ensured my frequent flyer number was correctly reflected, reissued the boarding pass, and confirmed that mileage accrual would be recognized. Additionally, she ensured the boarding pass reflected priority status, enabling a seamless priority check-in experience without delays. This level of proactive service was both commendable and impactful. Boarding and the inflight experience, operated by American Airlines under a codeshare arrangement, were efficient but largely transactional. While operational delivery was smooth, there was no visible recognition of oneworld frequent flyer status onboard. In comparison to the consistently personalized engagement typically experienced with Qatar Airways, this absence was noticeable—though understandably a potential limitation of codeshare alignment rather than a direct service shortfall. In summary, while the flight itself fulfilled its operational intent, the exceptional professionalism and commitment demonstrated at the Miami check-in counter was the defining highlight of this journey. Greater consistency in elite recognition across partner airlines would further enhance the overall experience.

Everything you need to know for your flight from Jacksonville to Knoxville

Information on your arrival and departure airports