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Cheap Flights to Union County from $45

View $45 flight on Thu, Sep 10, 2026Opens in a new window

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Popular airlines to Union County

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • Breeze Airways

  • Alaska Airlines

  • Allegiant Air

How much is the cheapest flight to Union County?

Prices were available within the past 7 days and start at $45 for one-way flights and $78 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Allegiant Air
Allegiant Air
Allegiant Air
Allegiant Air
Allegiant Air
Breeze Airways
Breeze Airways
Delta
American Airlines
United

Airports in Union County

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

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.

Allegiant Air

Frequently asked questions

How do I find cheap flights to Union County that have flexible change policies?
At Expedia, we've been channeling our inner yoga master to get you the most flexible fares in town. Just click on "No change fee" directly under the filter subheading "Flexible change policies" to find your ideal flight to Union County.
Which airlines fly to Union County?
Reserve your seat with one of these airlines and the dynamic region of Union County will be yours to discover:
  • American Airlines - 529 flights to or near Union County each month, including 529 flights to Greenville-Spartanburg Intl. Airport (GSP) per month.
  • Delta Air Lines - 333 flights to or near Union County each month, including 333 flights to Greenville-Spartanburg Intl. Airport (GSP) per month.
  • United Airlines - 234 flights to or near Union County each month, including 234 flights to Greenville-Spartanburg Intl. Airport (GSP) per month.
How can I find cheap tickets to Union County?
You'll always get an amazing deal with Expedia, but our "flexible dates" search function makes it even easier. Enter your preferred travel date, then click on the flexible dates link above to reveal the cheapest prices for nearby days. $78 was the cheapest price for a flight to Union County in the last seven days.
How much is a flight to Union County?
One-way trips departing from Fort Lauderdale (FLL) sold for just $45 in the last seven days. During this time, the cost of a return air ticket to Union County ranged between $78 and $229. If you spot a good deal, book immediately — these fares don't stick around for long.
What are the most popular airports to fly into in Union County?
Fly into Greenville-Spartanburg Intl. Airport (GSP) and experience all that Union County has to offer. As the region's main entry point, roughly 1,253 flights land here every month.
When is the cheapest time to fly to Union County?
Jet off on a Tuesday to raise your chances of securing the cheapest deal to Union County. Mondays are usually the next most affordable day to take off. Saturday is generally the costliest day to fly anywhere.
How much is a plane ticket to Union County?
Ticket prices to Union County ranged from $78 to $229 in the last seven days. Usually, the earlier you make a reservation, the bigger the bargain.
What months are the cheapest to book a flight to Union County?
February is the best month to snap up a fabulous deal to Union County. Bear in mind that the priciest time to book a ticket in the U.S. Isn't the middle of summer, but the month of December.
How long is a flight to Union County?
Whether or not you'll have time for a movie marathon depends on where you're taking off from. To give you a rough idea, here are the average flight times for three leading domestic routes to Union County:
  • Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Greenville-Spartanburg Intl. Airport (GSP) - 1 hour and 4 minutes
  • Charlotte, NC (CLT-Charlotte-Douglas Intl.) to Greenville-Spartanburg Intl. Airport (GSP) - 49 minutes
  • Chicago, IL (ORD-OHare Intl.) to Greenville-Spartanburg Intl. Airport (GSP) - 1 hour and 54 minutes
What is the best time to go to Union County?
If you want to check out Union County's leading city when it's at its liveliest, head for Union sometime during April, June and December. Like most places in the Northern Hemisphere, summertime here begins June 20, with temperatures ranging between 70ºF and 90ºF.

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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.