Cheap Flights to Union County | Popular Routes to Union County from HK$2,200

View HK$2,200 flight on Sun, 19 Apr 2026Opens in a new window

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Popular airlines to Union County

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • Alaska Airlines

  • Frontier Airlines

  • KLM

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Cheap round-trip flights to Union County

Prices were available within the past 7 days and start at HK$2,200 for one-way flights and HK$4,034 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, 19 Apr - Thu, 23 Apr
SFO
San Francisco
TYS
Knoxville
HK$4,034 Return, found 15 hours ago
HK$4,034
Return
found 15 hours ago
Select Delta flight, departing Sun, 19 Apr from San Francisco to Knoxville, returning Thu, 23 Apr, priced at HK$4,034 found 15 hours ago
American Airlines
Sun, 19 Apr - Thu, 23 Apr
SFO
San Francisco
TYS
Knoxville
HK$4,077 Return, found 15 hours ago
HK$4,077
Return
found 15 hours ago
Select American Airlines flight, departing Sun, 19 Apr from San Francisco to Knoxville, returning Thu, 23 Apr, priced at HK$4,077 found 15 hours ago
United
Sun, 19 Apr - Thu, 23 Apr
SFO
San Francisco
TYS
Knoxville
HK$4,120 Return, found 15 hours ago
HK$4,120
Return
found 15 hours ago
Select United flight, departing Sun, 19 Apr from San Francisco to Knoxville, returning Thu, 23 Apr, priced at HK$4,120 found 15 hours ago
Delta
Sun, 19 Apr - Thu, 23 Apr
SFO
San Francisco
TYS
Knoxville
HK$4,432 Return, found 15 hours ago
HK$4,432
Return
found 15 hours ago
Select Delta flight, departing Sun, 19 Apr from San Francisco to Knoxville, returning Thu, 23 Apr, priced at HK$4,432 found 15 hours ago
American Airlines
Sun, 19 Apr - Thu, 23 Apr
SFO
San Francisco
TYS
Knoxville
HK$4,464 Return, found 15 hours ago
HK$4,464
Return
found 15 hours ago
Select American Airlines flight, departing Sun, 19 Apr from San Francisco to Knoxville, returning Thu, 23 Apr, priced at HK$4,464 found 15 hours ago
Delta
Sun, 19 Apr - Thu, 23 Apr
SFO
San Francisco
TYS
Knoxville
HK$4,475 Return, found 15 hours ago
HK$4,475
Return
found 15 hours ago
Select Delta flight, departing Sun, 19 Apr from San Francisco to Knoxville, returning Thu, 23 Apr, priced at HK$4,475 found 15 hours ago
United
Sun, 19 Apr - Thu, 23 Apr
SFO
San Francisco
TYS
Knoxville
HK$4,507 Return, found 15 hours ago
HK$4,507
Return
found 15 hours ago
Select United flight, departing Sun, 19 Apr from San Francisco to Knoxville, returning Thu, 23 Apr, priced at HK$4,507 found 15 hours ago
United
Sun, 19 Apr - Thu, 23 Apr
SFO
San Francisco
TYS
Knoxville
HK$4,539 Return, found 15 hours ago
HK$4,539
Return
found 15 hours ago
Select United flight, departing Sun, 19 Apr from San Francisco to Knoxville, returning Thu, 23 Apr, priced at HK$4,539 found 15 hours ago
American Airlines
Sun, 19 Apr - Thu, 23 Apr
SFO
San Francisco
TYS
Knoxville
HK$4,701 Return, found 15 hours ago
HK$4,701
Return
found 15 hours ago
Select American Airlines flight, departing Sun, 19 Apr from San Francisco to Knoxville, returning Thu, 23 Apr, priced at HK$4,701 found 15 hours ago
Delta
Sun, 19 Apr - Thu, 23 Apr
SFO
San Francisco
TYS
Knoxville
HK$4,894 Return, found 15 hours ago
HK$4,894
Return
found 15 hours ago
Select Delta flight, departing Sun, 19 Apr from San Francisco to Knoxville, returning Thu, 23 Apr, priced at HK$4,894 found 15 hours 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$4,034 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 San Francisco (SFO), you could've nabbed a bargain fare for just HK$2,200 in the last seven days. Round-trip flights to Union County ranged from only HK$4,034 to HK$4,894 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$4,034 and HK$4,894. 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.

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About Union County

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About Union County

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