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Cheap Flights to Knox County from $39

View $39 flight on Mon, Aug 24, 2026Opens in a new window

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Popular airlines to Knox County

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • JetBlue Airways

  • Alaska Airlines

  • Frontier Airlines

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How much is the cheapest flight to Knox County?

Prices were available within the past 7 days and start at $39 for one-way flights and $82 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Breeze Airways
Fri, Aug 28 - Mon, Aug 31
MCO
Orlando
TRI
Tri-Cities
$107 Roundtrip, found 2 hours ago
$107
Roundtrip
found 2 hours ago
Select Breeze Airways flight, departing Fri, Aug 28 from Orlando to Tri-Cities, returning Mon, Aug 31, priced at $107 found 2 hours ago
Southwest Airlines
Sat, Oct 3 - Sat, Oct 10
MCO
Orlando
TYS
Knoxville
$181 Roundtrip, just found
$181
Roundtrip
just found
Select Southwest Airlines flight, departing Sat, Oct 3 from Orlando to Knoxville, returning Sat, Oct 10, priced at $181 just found
Delta
Sat, Oct 3 - Sat, Oct 10
MCO
Orlando
TYS
Knoxville
$181 Roundtrip, just found
$181
Roundtrip
just found
Select Delta flight, departing Sat, Oct 3 from Orlando to Knoxville, returning Sat, Oct 10, priced at $181 just found
American Airlines
Sat, Aug 1 - Wed, Aug 5
MCO
Orlando
TYS
Knoxville
$188 Roundtrip, found 7 hours ago
$188
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Sat, Aug 1 from Orlando to Knoxville, returning Wed, Aug 5, priced at $188 found 7 hours ago
Southwest Airlines
Wed, Aug 5 - Wed, Aug 12
TPA
Tampa
TYS
Knoxville
$227 Roundtrip, found 4 hours ago
$227
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Wed, Aug 5 from Tampa to Knoxville, returning Wed, Aug 12, priced at $227 found 4 hours ago
Delta
Tue, Jul 21 - Wed, Jul 22
RDU
Raleigh
TYS
Knoxville
$233 Roundtrip, found 11 hours ago
$233
Roundtrip
found 11 hours ago
Select Delta flight, departing Tue, Jul 21 from Raleigh to Knoxville, returning Wed, Jul 22, priced at $233 found 11 hours ago
Frontier Airlines
Fri, Aug 14 - Mon, Aug 17
PHX
Phoenix
TYS
Knoxville
$250 Roundtrip, found 3 days ago
$250
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, Aug 14 from Phoenix to Knoxville, returning Mon, Aug 17, priced at $250 found 3 days ago
American Airlines
Tue, Sep 22 - Wed, Sep 30
SAN
San Diego
LEX
Lexington
$257 Roundtrip, just found
$257
Roundtrip
just found
Select American Airlines flight, departing Tue, Sep 22 from San Diego to Lexington, returning Wed, Sep 30, priced at $257 just found
Frontier Airlines
Wed, Aug 5 - Wed, Aug 12
SAN
San Diego
TYS
Knoxville
$262 Roundtrip, found 19 hours ago
$262
Roundtrip
found 19 hours ago
Select Frontier Airlines flight, departing Wed, Aug 5 from San Diego to Knoxville, returning Wed, Aug 12, priced at $262 found 19 hours ago
Delta
Wed, Oct 14 - Sat, Oct 17
MCO
Orlando
LEX
Lexington
$271 Roundtrip, found 4 hours ago
$271
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Oct 14 from Orlando to Lexington, returning Sat, Oct 17, priced at $271 found 4 hours ago

Trending flights to Knox County

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Breeze Airways
Fri, Aug 21 - Mon, Aug 24
IAD
Washington
TRI
Tri-Cities
$82 Roundtrip, found 1 hour ago
$82
Roundtrip
found 1 hour ago
Select Breeze Airways flight, departing Fri, Aug 21 from Washington to Tri-Cities, returning Mon, Aug 24, priced at $82 found 1 hour ago

Frequently asked questions

How do I find cheap flights to Knox County that have flexible change policies?
We know that things can change from one day to the next, so reserving a flexible ticket with Expedia is a wise idea. Tick the "No change fee" box directly below the "Flexible change policies" filter. Your affordable, flexible flight to Knox County is just a few clicks away.
Which airlines fly to Knox County?
With a great selection of airlines flying into or near Knox County, you have plenty of choice:

  • American Airlines - 733 flights to or near Knox County each month, including 733 flights to Louisville Intl. Airport (SDF) per month.
  • United Airlines - 472 flights to or near Knox County each month, including 472 flights to Louisville Intl. Airport (SDF) per month.
  • Delta Air Lines - 450 flights to or near Knox County each month, including 450 flights to Louisville Intl. Airport (SDF) per month.

How can I find cheap tickets to Knox County?
One of the easiest ways to bag cheap tickets to Knox County is to be flexible with your travel dates. Search for your flights, then click "flexible dates" above the results. You'll see the cheapest prices for nearby days. The best price for a flight to Knox County in the last seven days was $82. Booking well in advance will generally help you pick up an even bigger bargain.
How much is a flight to Knox County?
There were lots of budget-friendly fares up for grabs in the last seven days, with the cost of a round-trip flight to Knox County ranging between $82 and $271. Many lucky travelers scored one-way tickets from Orlando (MCO) for as low as $39.
What are the most popular airports to fly into in Knox County?
Start organizing your Knox County trip by booking a fare on one of the 2,155 flights every month to Louisville Intl. Airport (SDF). This is the region's main entryway.
When is the cheapest time to fly to Knox County?
Taking off on a Tuesday, followed by a Monday, is usually the best way to land the cheapest flight. Stay away from the weekends if you can, because Saturday is typically the costliest day. Spend the money you saved having a good time in Knox County instead!
How much is a plane ticket to Knox County?
In the last seven days, plane tickets to Knox County fluctuated between $82 and $271. The early bird catches the worm, so snap up a good deal today.
What months are the cheapest to book a flight to Knox County?
Snap up a ticket in February for low-priced flights to Knox County. The festive month of December is generally the most expensive time to purchase a fare.
How long is a flight to Knox County?
It depends on a couple of different things, including where you set off from and whether you're traveling on a multi-stop or direct flight. Below are three of the busiest domestic routes to Knox County and their average flight times:

  • Chicago, IL (ORD-OHare Intl.) to Louisville Intl. Airport (SDF) - 1 hour and 27 minutes
  • Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Louisville Intl. Airport (SDF) - 2 hours and 7 minutes
  • Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Louisville Intl. Airport (SDF) - 1 hour and 20 minutes

What is the best time to go to Knox County?
Summer starts June 20 in the Northern Hemisphere, and these warmer months are a good time to explore the well-known Knox County city of Barbourville. Average temperatures fluctuate between 60ºF and 85ºF at this time of year. The biggest crowds flock here in March, April and July.

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Travel information

*Flight schedules are subject to change.

*Available to One Key members.

 

*Flight schedules are subject to change.

*Available to One Key members.