Cheap Flights to Union County from $85

View $85 flight on Wed, Sep 2, 2026Opens in a new window

Popular airlines to Union County

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • Alaska Airlines

  • Air Canada

  • Frontier Airlines

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How much is the cheapest flight to Union County?

Prices were available within the past 7 days and start at $85 for one-way flights and $172 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Sep 2 - Mon, Sep 7
DEN
Denver
TYS
Knoxville
$172 Roundtrip, found 1 hour ago
$172
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Wed, Sep 2 from Denver to Knoxville, returning Mon, Sep 7, priced at $172 found 1 hour ago
Frontier Airlines
Mon, Jun 1 - Fri, Jun 5
DEN
Denver
TYS
Knoxville
$178 Roundtrip, found 3 days ago
$178
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Mon, Jun 1 from Denver to Knoxville, returning Fri, Jun 5, priced at $178 found 3 days ago
Southwest Airlines
Wed, May 27 - Wed, Jun 3
BWI
Baltimore
TYS
Knoxville
$179 Roundtrip, found 3 days ago
$179
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Wed, May 27 from Baltimore to Knoxville, returning Wed, Jun 3, priced at $179 found 3 days ago
Frontier Airlines
Wed, Aug 12 - Wed, Aug 19
DEN
Denver
TYS
Knoxville
$180 Roundtrip, found 12 hours ago
$180
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Wed, Aug 12 from Denver to Knoxville, returning Wed, Aug 19, priced at $180 found 12 hours ago
Frontier Airlines
Mon, May 25 - Fri, Jun 5
DEN
Denver
TYS
Knoxville
$181 Roundtrip, found 3 days ago
$181
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Mon, May 25 from Denver to Knoxville, returning Fri, Jun 5, priced at $181 found 3 days ago
Southwest Airlines
Wed, Jul 1 - Sat, Jul 4
MIA
Miami
TYS
Knoxville
$187 Roundtrip, found 3 hours ago
$187
Roundtrip
found 3 hours ago
Select Southwest Airlines flight, departing Wed, Jul 1 from Miami to Knoxville, returning Sat, Jul 4, priced at $187 found 3 hours ago
Southwest Airlines
Tue, Jun 2 - Wed, Jun 3
MCO
Orlando
TYS
Knoxville
$195 Roundtrip, found 3 days ago
$195
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Tue, Jun 2 from Orlando to Knoxville, returning Wed, Jun 3, priced at $195 found 3 days ago
American Airlines
Tue, Jun 23 - Tue, Jun 30
BWI
Baltimore
TYS
Knoxville
$197 Roundtrip, found 18 hours ago
$197
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Tue, Jun 23 from Baltimore to Knoxville, returning Tue, Jun 30, priced at $197 found 18 hours ago
Delta
Tue, Jun 16 - Wed, Jun 17
BWI
Baltimore
TYS
Knoxville
$197 Roundtrip, found 1 day ago
$197
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jun 16 from Baltimore to Knoxville, returning Wed, Jun 17, priced at $197 found 1 day ago
United
Wed, Jun 3 - Wed, Jun 17
ORD
Chicago
TYS
Knoxville
$249 Roundtrip, just found
$249
Roundtrip
just found
Select United flight, departing Wed, Jun 3 from Chicago to Knoxville, returning Wed, Jun 17, priced at $249 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 $387
TYS
McGhee Tyson
Cheapest
Flights from $387

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
Wed, Sep 2 - Mon, Sep 7
DEN
Denver
TYS
Knoxville
$172 Roundtrip, found 1 hour ago
$172
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Wed, Sep 2 from Denver to Knoxville, returning Mon, Sep 7, priced at $172 found 1 hour ago

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, $172 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 $85 in the last seven days. Round-trip flights to Union County ranged from only $172 to $249 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 $172 and $249. 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

*Flight schedules are subject to change.

*Available to One Key members.

 

*Flight schedules are subject to change.

*Available to One Key members.

 

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