Cheap Flights to Union County from $69

View $69 flight on Mon, Feb 23, 2026Opens in a new window

Popular airlines to Union County

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Alaska Airlines

    Alaska Airlines

  • Frontier Airlines

    Frontier Airlines

  • British Airways

    British Airways

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How much is the cheapest flight to Union County?

Prices were available within the past 7 days and start at $69 for one-way flights and $138 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Jan 26 - Mon, Feb 2
DEN
Denver
TYS
Knoxville
$138 Roundtrip, just found
$138
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Jan 26 from Denver to Knoxville, returning Mon, Feb 2, priced at $138 just found
Frontier Airlines
Mon, Mar 2 - Mon, Mar 16
DEN
Denver
TYS
Knoxville
$143 Roundtrip, found 1 day ago
$143
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Mar 2 from Denver to Knoxville, returning Mon, Mar 16, priced at $143 found 1 day ago
Frontier Airlines
Mon, Jan 26 - Mon, Feb 2
IAH
Houston
TYS
Knoxville
$144 Roundtrip, found 2 days ago
$144
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Jan 26 from Houston to Knoxville, returning Mon, Feb 2, priced at $144 found 2 days ago
Frontier Airlines
Mon, Mar 9 - Mon, Mar 16
DEN
Denver
TYS
Knoxville
$148 Roundtrip, just found
$148
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Mar 9 from Denver to Knoxville, returning Mon, Mar 16, priced at $148 just found
Frontier Airlines
Mon, Feb 2 - Mon, Feb 9
IAH
Houston
TYS
Knoxville
$150 Roundtrip, found 1 hour ago
$150
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Mon, Feb 2 from Houston to Knoxville, returning Mon, Feb 9, priced at $150 found 1 hour ago
Frontier Airlines
Fri, Feb 27 - Mon, Mar 2
DEN
Denver
TYS
Knoxville
$153 Roundtrip, found 1 hour ago
$153
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Feb 27 from Denver to Knoxville, returning Mon, Mar 2, priced at $153 found 1 hour ago
Southwest Airlines
Wed, Mar 18 - Wed, Apr 15
MCO
Orlando
TYS
Knoxville
$176 Roundtrip, found 2 days ago
$176
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Wed, Mar 18 from Orlando to Knoxville, returning Wed, Apr 15, priced at $176 found 2 days ago
American Airlines
Thu, Feb 19 - Tue, Feb 24
MIA
Miami
TYS
Knoxville
$179 Roundtrip, found 1 day ago
$179
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Feb 19 from Miami to Knoxville, returning Tue, Feb 24, priced at $179 found 1 day ago
Delta
Wed, Feb 18 - Tue, Feb 24
MCO
Orlando
TYS
Knoxville
$181 Roundtrip, found 16 hours ago
$181
Roundtrip
found 16 hours ago
Select Delta flight, departing Wed, Feb 18 from Orlando to Knoxville, returning Tue, Feb 24, priced at $181 found 16 hours ago
United
Thu, Feb 5 - Sun, Feb 8
ORD
Chicago
TYS
Knoxville
$189 Roundtrip, just found
$189
Roundtrip
just found
Select United flight, departing Thu, Feb 5 from Chicago to Knoxville, returning Sun, Feb 8, priced at $189 just found

Airports in Union County

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to McGhee Tyson TYS. Cheapest option available. Flights from $377
TYS
McGhee Tyson
Cheapest
Flights from $377

Trending flights to Union 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.

Frontier Airlines
Mon, Jan 26 - Mon, Feb 2
DEN
Denver
TYS
Knoxville
$138 Roundtrip, just found
$138
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Jan 26 from Denver to Knoxville, returning Mon, Feb 2, priced at $138 just found

Frequently asked questions

How do I find cheap flights to Union County that have flexible change policies?
It's as easy as 1-2-3 with Expedia. Step 1: Type in your travel dates and click "Search." Second step: Check the "No change fee" box just below the "Flexible change policies" filter to the left of your screen. Step 3. Score your flexible and cheap flight to Union County.
Which airlines fly to Union County?
Pack your bags, find your passport and choose between these quality airlines that fly into or near Union County:

  • American Airlines - 585 flights to or near Union County each month, including 585 flights to McGhee Tyson Airport (TYS) per month.
  • United Airlines - 329 flights to or near Union County each month, including 329 flights to McGhee Tyson Airport (TYS) per month.
  • Delta Air Lines - 320 flights to or near Union County each month, including 320 flights to McGhee Tyson Airport (TYS) per month.

How can I find cheap tickets to Union County?
For an unbeatable deal to Union County, book well ahead. Also take advantage of Expedia's handy "flexible dates" feature at the top of your search results. This will display the cheapest prices for similar time frames. In the last seven days, $138 was the lowest price for a flight to Union County.
How much is a flight to Union County?
If you were traveling one way from Denver (DEN), you could've nabbed a bargain fare for just $69 in the last seven days. Round-trip flights to Union County ranged from only $138 to $189 over the same period.
What are the most popular airports to fly into in Union County?
The number one gateway to Union County, roughly 1,478 flights taxi into McGhee Tyson Airport (TYS) every month. Scout around for an amazing deal, reserve your seat and prepare to discover this fantastic region.
When is the cheapest time to fly to Union County?
Consider jetting off early on in the week to secure the best airfare to Union County. Tuesday is commonly the cheapest day to depart, followed by Monday. Saturday often has the highest prices. This is because a lot of people choose to start their getaway on a weekend.
How much is a plane ticket to Union County?
In the last seven days, airfares varied between $138 and $189. Swipe through our fantastic deals to Union County, make a booking and then get ready for your getaway!
What months are the cheapest to book a flight to Union County?
Book your ticket in February for amazing flight deals to Union County. The month of December is known as the most expensive time to purchase a seat.
How long is a flight to Union County?
Flight times can vary for different reasons, including where you're jetting off from. Here's a list of average flight times for a few of the most well-known domestic routes to Union County:

  • Charlotte, NC (CLT-Charlotte-Douglas Intl.) to McGhee Tyson Airport (TYS) - 1 hour and 7 minutes
  • Chicago, IL (ORD-OHare Intl.) to McGhee Tyson Airport (TYS) - 1 hour and 40 minutes
  • Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to McGhee Tyson Airport (TYS) - 55 minutes

What is the best time to go to Union County?
Summer starts June 20 in the Northern Hemisphere, and these warmer months are a fantastic time to check out the top Union County city of Maynardville. Average temperatures fluctuate between 65ºF and 90ºF at this time of year. The largest crowds are found here in February, March and September.

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Travel information

Union County Flights Information

Airlines serving
Frontier Airlines, Southwest Airlines, American Airlines, Delta, United
Roundtrip price
from $138
Union County Flights Information

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