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Cheap flights from Knoxville to Jacksonville from $38

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Jacksonville departing on 1/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Knoxville to Jacksonville

Cheap round-trip flights

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Allegiant Air Logo
7:26 pm - 8:52 pm
TYS
-
JAX
1h 26mnonstop
Allegiant Air Logo
9:42 pm - 11:05 pm
JAX
-
TYS
1h 23mnonstop
$75Allegiant Air
Sun, Jan 11 - Thu, Jan 15
Allegiant Air Logo
11:50 am - 1:19 pm
TYS
-
JAX
1h 29mnonstop
Allegiant Air Logo
8:02 pm - 9:21 pm
JAX
-
TYS
1h 19mnonstop
$76Allegiant Air
Thu, Feb 12 - Sun, Feb 15
Multiple Airlines Logo
1:39 pm - 4:57 pm
TYS
-
JAX
27h 18m2 stops
Multiple Airlines Logo
9:42 pm - 11:05 pm
JAX
-
TYS
1h 23mnonstop
$182Multiple Airlines
Sun, Jan 11 - Thu, Jan 15
Allegiant Air Logo
11:51 am - 1:10 pm
TYS
-
JAX
1h 19mnonstop
Allegiant Air Logo
8:01 pm - 9:22 pm
JAX
-
TYS
1h 21mnonstop
$196Allegiant Air
Sat, Dec 27 - Tue, Dec 30
Multiple Airlines Logo
11:50 am - 1:19 pm
TYS
-
JAX
1h 29mnonstop
Multiple Airlines Logo
5:51 pm - 11:38 pm
JAX
-
TYS
29h 47m2 stops
$225Multiple Airlines
Thu, Feb 12 - Sun, Feb 15
Multiple Airlines Logo
7:26 pm - 8:52 pm
TYS
-
JAX
1h 26mnonstop
Multiple Airlines Logo
5:51 pm - 8:36 pm
JAX
-
TYS
26h 45m3 stops
$226Multiple Airlines
Sun, Jan 11 - Thu, Jan 15
American Airlines Logo
8:09 am - 1:53 pm
TYS
-
JAX
5h 44m1 stop
American Airlines Logo
6:00 pm - 11:59 pm
JAX
-
TYS
5h 59m1 stop
$230American Airlines
Sat, Jan 24 - Tue, Jan 27
Multiple Airlines Logo
1:22 pm - 2:41 pm
TYS
-
JAX
1h 19mnonstop
Multiple Airlines Logo
10:15 pm - 8:03 am
JAX
-
TYS
57h 48m3 stops
$241Multiple Airlines
Sun, Dec 21 - Fri, Jan 2
Southwest Logo
7:50 am - 2:10 pm
TYS
-
JAX
6h 20m1 stop
Southwest Logo
4:10 pm - 9:15 pm
JAX
-
TYS
5h 05m1 stop
$269Southwest
Sat, Mar 14 - Mon, Mar 16
Multiple Airlines Logo
6:42 pm - 7:42 pm
TYS
-
JAX
25h 00m3 stops
Multiple Airlines Logo
8:02 pm - 9:21 pm
JAX
-
TYS
1h 19mnonstop
$272Multiple Airlines
Thu, Feb 12 - Sun, Feb 15

Allegiant Air flights from Knoxville to Jacksonville

Our best Allegiant Air deals on Knoxville to Jacksonville flight tickets
Allegiant Air
Jan 11
TYS7:26 pmKnoxville McGhee Tyson
1h 26m
JAX8:52 pmJacksonville
Jan 15
JAX9:42 pmJacksonville
1h 23m
TYS11:05 pmKnoxville McGhee Tyson
$75
Find similar
Allegiant Air
Feb 12
TYS11:50 amKnoxville McGhee Tyson
1h 29m
JAX1:19 pmJacksonville
Feb 15
JAX8:02 pmJacksonville
1h 19m
TYS9:21 pmKnoxville McGhee Tyson
$76
Find similar
Allegiant Air
Dec 18
TYS1:22 pmKnoxville McGhee Tyson
1h 19m
JAX2:41 pmJacksonville
Dec 21
JAX9:21 pmJacksonville
1h 21m
TYS10:42 pmKnoxville McGhee Tyson
$130
Find similar

United Airlines flights from Knoxville to Jacksonville

Our best United Airlines deals on Knoxville to Jacksonville flight tickets
United Airlines
Jan 14
TYS9:30 amKnoxville McGhee Tyson
10h 40m
1 stop
JAX8:10 pmJacksonville
Jan 21
JAX1:45 pmJacksonville
25h 04m
1 stop
TYS2:49 pmKnoxville McGhee Tyson
$515
Find similar
United Airlines
Jan 14
TYS9:30 amKnoxville McGhee Tyson
10h 40m
1 stop
JAX8:10 pmJacksonville
Jan 21
JAX3:05 pmJacksonville
23h 44m
2 stops
TYS2:49 pmKnoxville McGhee Tyson
$520
Find similar
United Airlines
Jan 22
TYS2:25 pmKnoxville McGhee Tyson
20h 53m
1 stop
JAX11:18 amJacksonville
Jan 26
JAX3:05 pmJacksonville
23h 44m
2 stops
TYS2:49 pmKnoxville McGhee Tyson
$522
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville to Jacksonville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 16, 2025.
Use the filters below to find and compare flights from Knoxville to Jacksonville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleJacksonville

TYS - JAX

TYSJAX

Knoxville McGhee Tyson

Sun 1/11

7:26 pm-8:52 pm

Nonstop1h 26m

Jacksonville

Thu 1/15

9:42 pm-11:05 pm

Nonstop1h 23m

$75

KnoxvilleJacksonville

TYS - JAX

TYSJAX

Knoxville McGhee Tyson

Thu 2/12

11:50 am-1:19 pm

Nonstop1h 29m

Jacksonville

Sun 2/15

8:02 pm-9:21 pm

Nonstop1h 19m

$76

KnoxvilleJacksonville

TYS - JAX

TYSJAX

Knoxville McGhee Tyson

Sun 1/11

1:39 pm-4:57 pm

2 stops27h 18m

Jacksonville

Thu 1/15

9:42 pm-11:05 pm

Nonstop1h 23m

$182

KnoxvilleJacksonville

TYS - JAX

TYSJAX

Knoxville McGhee Tyson

Sat 12/27

11:51 am-1:10 pm

Nonstop1h 19m

Jacksonville

Tue 12/30

8:01 pm-9:22 pm

Nonstop1h 21m

$196

KnoxvilleJacksonville

TYS - JAX

TYSJAX

Knoxville McGhee Tyson

Thu 2/12

11:50 am-1:19 pm

Nonstop1h 29m

Jacksonville

Sun 2/15

5:51 pm-11:38 pm

2 stops29h 47m

$225

KnoxvilleJacksonville

TYS - JAX

TYSJAX

Knoxville McGhee Tyson

Sun 1/11

7:26 pm-8:52 pm

Nonstop1h 26m

Jacksonville

Thu 1/15

5:51 pm-8:36 pm

3 stops26h 45m

$226

KnoxvilleJacksonville

TYS - JAX

TYSJAX

Knoxville McGhee Tyson

Sat 1/24

8:09 am-1:53 pm

1 stop5h 44m

Jacksonville

Tue 1/27

6:00 pm-11:59 pm

1 stop5h 59m

$230

KnoxvilleJacksonville

TYS - JAX

TYSJAX

Knoxville McGhee Tyson

Sun 12/21

1:22 pm-2:41 pm

Nonstop1h 19m

Jacksonville

Fri 1/2

10:15 pm-8:03 am

3 stops57h 48m

$241

KnoxvilleJacksonville

TYS - JAX

TYSJAX

Knoxville McGhee Tyson

Sat 3/14

7:50 am-2:10 pm

1 stop6h 20m

Jacksonville

Mon 3/16

4:10 pm-9:15 pm

1 stop5h 05m

$269

KnoxvilleJacksonville

TYS - JAX

TYSJAX

Knoxville McGhee Tyson

Thu 2/12

6:42 pm-7:42 pm

3 stops25h 00m

Jacksonville

Sun 2/15

8:02 pm-9:21 pm

Nonstop1h 19m

$272

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Jacksonville from

How to get the cheapest flight ticket from Knoxville to Jacksonville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Jacksonville?

If you are unable to visit Jacksonville during the month of February, then departing from Knoxville during the month June is also very affordable. Most momondo users find prices during this month for around $126.

What is the cheapest day to depart on your flight to Jacksonville?

According to our data, Friday is the cheapest day to fly to Jacksonville from Knoxville. The lowest ticket price found for a Friday departure recently was $88. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Tuesday is the most expensive day to depart from Knoxville because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $166.

What is the cheapest time of day to depart on your flight to Jacksonville?

Flying to Jacksonville from Knoxville in the morning is the least expensive time of day to depart. momondo users have found prices as low as $94 when looking at flights departing in the morning. Flights to Jacksonville are more costly in the afternoon, with an average ticket price of $102. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Knoxville McGhee Tyson to Jacksonville flight route?

Fly from Knoxville McGhee Tyson to Jacksonville for the best Knoxville McGhee Tyson - Jacksonville flight prices

What cabin class options are available on Knoxville McGhee Tyson to Jacksonville flights?

There is only 1 cabin class available to choose from on Knoxville McGhee Tyson to Jacksonville flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Knoxville to Jacksonville flight prices changed over time?

As of December 2025, prices for Knoxville to Jacksonville flights are approximately 66% cheaper when compared to flights at the same time last year.

When to book flights from Knoxville to Jacksonville

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Jacksonville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Knoxville to Jacksonville (TYS to JAX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Jacksonville

Best Price Found

$76

Fastest flight time

1h 19m

Direct flights

Mon, Wed, Fri and Sun

Airports in Jacksonville

1 airport
The best flight deal from Knoxville to Jacksonville found on momondo in the last 72 hours is $76
The fastest flight from Knoxville to Jacksonville takes 1h 19m
Direct flights go from Knoxville to Jacksonville on Monday, Wednesday, Friday and Sunday. The only airline offering direct flights is Allegiant Air.
There is 1 airport in Jacksonville. From Knoxville there are direct flights to Jacksonville (JAX).
Search flight deals

  • How far is Knoxville McGhee Tyson to Jacksonville by plane?

    There are 410.0 mi between Knoxville McGhee Tyson and Jacksonville. In terms of flight time, this usually takes a little over 1h 19m.

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Jacksonville Airport?

    Prices for flights from Knoxville McGhee Tyson Airport to Jacksonville Airport were last updated today.

  • How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Jacksonville Airport?

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Jacksonville Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Jacksonville Airport.

  • What documentation or ID do you need to fly to Jacksonville Airport?

    The travel and health documents you'll need for your trip to Jacksonville Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Jacksonville Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Knoxville to Jacksonville?

  • What is the most popular airline from Knoxville to Jacksonville?

Best airlines flying from Knoxville to Jacksonville

Compare and see reviews for airlines that fly from Knoxville to Jacksonville with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $76Free CancellationRating
7.2
700 reviews
Search Allegiant Air flights
DeltaPriceFrom $258Free CancellationRating
7.9
8,009 reviews
Search Delta flights
American AirlinesPriceFrom $282Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights

  • Allegiant Air Flights From Knoxville to Jacksonville

    The lowest priced Allegiant Air flight from Knoxville to Jacksonville from the last 72 hours was $76. Generally, Allegiant Air has 1 flight on this route every week with an average price of $95. Allegiant Air is rated 7.2/10 by our users.

Traveling to a place near Jacksonville?

Book flights to Jacksonville if you plan to visit one of these locations
Fernandina Beach
Jacksonville Beach
Orange Park
Ponte Vedra Beach
Kingsland
Waycross
Atlantic Beach
Neptune Beach
St Johns
Yulee
Cumberland Island

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Jacksonville?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Jacksonville from Knoxville.

Can I find flights from Knoxville to Jacksonville with flexible booking policies on momondo?

Flights from Knoxville to Jacksonville with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Knoxville to Jacksonville?

momondo helps you find the best flight between Knoxville and Jacksonville by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Knoxville to Jacksonville right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Jacksonville, momondo offers a useful price alert feature which will track prices for flights to Jacksonville from Knoxville and alert you when they change.

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