$30 Cheap Flights to South Union, KY

View $30 flight on Mon, Nov 3, 2025Opens in a new window

Popular airlines to South Union

How much is the cheapest flight to South Union?

Prices were available within the past 7 days and start at $30 for one-way flights and $60 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Fri, Oct 24 - Fri, Oct 31
ORD
Chicago
BNA
Nashville
$60 Roundtrip, just found
$60
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, Oct 24 from Chicago to Nashville, returning Fri, Oct 31, priced at $60 just found
Frontier Airlines
Mon, Jul 14 - Mon, Jul 28
ORD
Chicago
BNA
Nashville
$78 Roundtrip, found 5 days ago
$78
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Mon, Jul 14 from Chicago to Nashville, returning Mon, Jul 28, priced at $78 found 5 days ago
American Airlines
Thu, Oct 16 - Sat, Oct 18
ORD
Chicago
BNA
Nashville
$97 Roundtrip, just found
$97
Roundtrip
just found
Select American Airlines flight, departing Thu, Oct 16 from Chicago to Nashville, returning Sat, Oct 18, priced at $97 just found
United
Tue, Nov 4 - Thu, Nov 6
ORD
Chicago
BNA
Nashville
$97 Roundtrip, just found
$97
Roundtrip
just found
Select United flight, departing Tue, Nov 4 from Chicago to Nashville, returning Thu, Nov 6, priced at $97 just found
Southwest Airlines
Tue, Nov 4 - Thu, Nov 6
ORD
Chicago
BNA
Nashville
$97 Roundtrip, just found
$97
Roundtrip
just found
Select Southwest Airlines flight, departing Tue, Nov 4 from Chicago to Nashville, returning Thu, Nov 6, priced at $97 just found

Tips to find the cheapest flights to South Union

The cheapest day to fly

Get started finding a cheap flight to South Union on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

The cheapest month to fly

October is the cheapest month to fly to South Union. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to South Union. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute.

The most affordable time to book a flight

Typically, a Sunday can be the cheapest time to book a flight to South Union, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation.

The cheapest round-trip tickets to South Union

The lowest price for round-trip flights to South Union in 2025 starts from from $60, while one-way tickets start from from $30. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to South Union. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to South Union

Spirit Airlines, American Airlines, United, Southwest Airlines, Frontier Airlines are just some of the airlines that can typically offer cheap tickets to South Union. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to South Union and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for South Union, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to South Union. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia.

Save with a package

With Expedia's amazing package deals, you could save hundreds of dollars by booking your South Union plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving.

Date flexibility for the cheapest flights to South Union

If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to South Union.

Stopover savings

The cheapest tickets to South Union are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to South Union. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved.

Get Expedia's Price Drop Protection

Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference*. This gives you peace of mind that you're getting one of the cheapest flights to South Union for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members.

*Terms apply.

Use our Price Tracking feature

Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to South Union. Simply download the free Expedia app to your smart device and activate South Union flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices.

Book with Expedia

As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to South Union. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

What month is the cheapest to fly to South Union?
August is generally the cheapest month for flights to South Union*. Check for cheap fares during this time as you could score a good deal. *Cheapest month to fly is based on the month with the cheapest flight found on Expedia.com in the next 330 days.
Which US cities have the cheapest flights to South Union?
Get cheap flights to South Union from Chicago, New York and Dallas. These cities usually offer the best fares to this top destination. But remember that demand, seasonality and stopovers will also have an impact on rates, so stay flexible and book when prices are right.
Which US cities fly direct to South Union?
There are 79 US cities that you can fly to South Union directly from. Compare your options by using the "Direct flights only" filter on Expedia and choose the best starting point for your trip. Here are some of the major cities to jet off from:

  • Chicago
  • New York
  • Dallas
  • Washington
  • Houston

How to find a cheap flight to South Union?
To snag cheap flights to South Union, book in advance and travel during the low season. Want a handy tip? Depart on a Thursday and save around 16% on average compared to those who travel on a Sunday.* Set up price tracking on the Expedia app and we'll notify you as soon as your fares drop.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to South Union?
While booking in advance is generally the best way to save cash, don't panic if your South Union vacation is last minute. You can still find cheap flights to South Union, especially if your plans have a little leeway. Try changing your dates, looking at different ticket options or departing from an alternative airport.
How far in advance should I book a flight to South Union?
To nab some of the biggest savings on domestic journeys, book your flight to South Union 28 days ahead of your travel dates. For international flights, search for your ticket two to four months in advance. This improves your chances of locking in your preferred departure dates, times and seats.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to South Union?
You'll save an average of 8% if you purchase tickets on a Sunday rather than Fridays, which tend to be the priciest day to book.* When it comes to getting a cheap flight to South Union, the key is good timing.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to South Union?
There are 15 carriers that connect South Union with 40 airports globally. The primary gateway to this city is Nashville Intl. Airport (BNA). Fly with any of these top airlines to South Union:

  • American Airlines
  • Delta Air Lines
  • United Airlines
  • JetBlue Airways

Where do you fly into South Union?
The main hub when you fly to South Union is Nashville Intl. Airport (BNA), but there are other nearby possibilities like Bowling Green, KY (BWG-Bowling Green-Warren County) and Glasgow, KY (GLW-Glasgow Municipal). You can also arrive at Clarksville, TN (CKV-Outlaw Field) and Smyrna Airport (MQY) when flying to South Union.
How far is the airport from central South Union?
You'll be roughly 50 mi south of the center of South Union after landing at Nashville Intl. Airport (BNA).
Can I save money by booking a South Union trip package?
You could potentially save hundreds of dollars if you secure a South Union flight and hotel package deal on Expedia. And you'll make life easier by having all your travel plans in one place. Try bundling your flight and hotel with extras like activities and tours for your own personalized South Union getaway.
Can I change or cancel my flight to South Union?
You can often change or cancel your flight to South Union within 24 hours of booking. However, be mindful that some fares are non-refundable. In those cases, you may be issued credit for future travel instead of a direct refund. Be sure to check the airline's terms of service in your itinerary for exact details. You can use Expedia's "No cancel fee" or "Changes included" filters during your search to secure cheap flights to South Union with flexible change policies. For more information, browse our Customer Service Portal.
Flights to South Union information
Destination airport
Nashville Intl.
Destination airport IATA code
BNA
Destination city name
Nashville
Roundtrip price
$60

Trending flights to South Union

Prices were available within the past 7 days and start at $30 for one-way flights and $60 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Thu, Oct 23 - Thu, Oct 30
LGA
New York
BNA
Nashville
$60 Roundtrip, just found
$60
Roundtrip
just found
Select Spirit Airlines flight, departing Thu, Oct 23 from New York to Nashville, returning Thu, Oct 30, priced at $60 just found

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*Available to One Key members.