A sunset over a calm river with surrounding forested hills.

Cheap Flights to Union County | Popular Routes to Union County from HK$1,641

View HK$1,641 flight on Fri, 7 Aug 2026Opens in a new window

Popular airlines to Union County

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • Allegiant Air

  • Alaska Airlines

  • Air Canada

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Union County

Prices were available within the past 7 days and start at HK$1,641 for one-way flights and HK$2,583 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 20 Jul - Mon, 27 Jul
IAD
Washington
TYS
Knoxville
HK$2,583 Return, found 4 days ago
HK$2,583
Return
found 4 days ago
Select Delta flight, departing Mon, 20 Jul from Washington to Knoxville, returning Mon, 27 Jul, priced at HK$2,583 found 4 days ago
United
Mon, 20 Jul - Mon, 27 Jul
IAD
Washington
TYS
Knoxville
HK$2,975 Return, found 4 days ago
HK$2,975
Return
found 4 days ago
Select United flight, departing Mon, 20 Jul from Washington to Knoxville, returning Mon, 27 Jul, priced at HK$2,975 found 4 days ago
American Airlines
Mon, 20 Jul - Mon, 27 Jul
IAD
Washington
TYS
Knoxville
HK$3,131 Return, found 4 days ago
HK$3,131
Return
found 4 days ago
Select American Airlines flight, departing Mon, 20 Jul from Washington to Knoxville, returning Mon, 27 Jul, priced at HK$3,131 found 4 days ago
United
Fri, 24 Jul - Mon, 27 Jul
IAD
Washington
TYS
Knoxville
HK$3,211 Return, found 11 hours ago
HK$3,211
Return
found 11 hours ago
Select United flight, departing Fri, 24 Jul from Washington to Knoxville, returning Mon, 27 Jul, priced at HK$3,211 found 11 hours ago
Delta
Fri, 17 Jul - Fri, 24 Jul
IAD
Washington
TYS
Knoxville
HK$3,249 Return, found 15 hours ago
HK$3,249
Return
found 15 hours ago
Select Delta flight, departing Fri, 17 Jul from Washington to Knoxville, returning Fri, 24 Jul, priced at HK$3,249 found 15 hours ago
Delta
Fri, 7 Aug - Fri, 14 Aug
SRQ
Sarasota
TYS
Knoxville
HK$3,271 Return, found 10 hours ago
HK$3,271
Return
found 10 hours ago
Select Delta flight, departing Fri, 7 Aug from Sarasota to Knoxville, returning Fri, 14 Aug, priced at HK$3,271 found 10 hours ago
United
Mon, 20 Jul - Mon, 27 Jul
IAD
Washington
TYS
Knoxville
HK$3,332 Return, found 4 days ago
HK$3,332
Return
found 4 days ago
Select United flight, departing Mon, 20 Jul from Washington to Knoxville, returning Mon, 27 Jul, priced at HK$3,332 found 4 days ago
Delta
Fri, 17 Jul - Fri, 24 Jul
IAD
Washington
TYS
Knoxville
HK$3,410 Return, found 15 hours ago
HK$3,410
Return
found 15 hours ago
Select Delta flight, departing Fri, 17 Jul from Washington to Knoxville, returning Fri, 24 Jul, priced at HK$3,410 found 15 hours ago
Delta
Fri, 17 Jul - Fri, 24 Jul
MCO
Orlando
TYS
Knoxville
HK$3,443 Return, found 5 days ago
HK$3,443
Return
found 5 days ago
Select Delta flight, departing Fri, 17 Jul from Orlando to Knoxville, returning Fri, 24 Jul, priced at HK$3,443 found 5 days ago
Delta
Mon, 20 Jul - Mon, 27 Jul
IAD
Washington
TYS
Knoxville
HK$3,443 Return, found 4 days ago
HK$3,443
Return
found 4 days ago
Select Delta flight, departing Mon, 20 Jul from Washington to Knoxville, returning Mon, 27 Jul, priced at HK$3,443 found 4 days 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, HK$2,583 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 Sarasota (SRQ), you could've nabbed a bargain fare for just HK$1,641 in the last seven days. Round-trip flights to Union County ranged from only HK$2,583 to HK$3,443 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 HK$2,583 and HK$3,443. Swipe through our fantastic deals to Union County, make a booking and then get ready for your getaway!
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 18ºC and 32ºC at this time of year. The largest crowds are found here in February, March and September.
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.

Book with confidence

About Union County

Expedia offers flights to Union County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Union County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About Union County
*Available to Expedia members.