S$443 Cheap Flights to Union

  • Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 40% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards

Cheap round-trip flights to Union

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Delta
United
American Airlines
United
Beautiful view of the beach with palm trees

Black Friday: Members save 30%+

Members save 30%+ on selected hotels until 4 Dec (property time) with our Black Friday deals. Stay by 15 Dec 2025.

Find Your Flights to Union GSP

Cheap flights to Union (GSP)

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

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to Union.

Return prices range from S$596 - S$2,068 and one-ways Union start as low as S$443.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

 

Airlines that fly to Union (GSP)

You have several options for which airline you choose to travel with to Union. There are 10 airlines flying into GSP: American Airlines, United, Delta. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check in a bag or bring hand baggage, it's worth checking whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked in/hand baggage in exchange for a slightly higher airfare. 

Additionally, your preferred frequent flyer membership programmes may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel on one online platform.

 

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at optimal times. Airfare to Union (GSP) varies throughout the year based on seasonal demand. You’ll see the lowest rates for return trips to GSP in December and in December for one-ways.

 

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24 hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

Frequently asked questions

What is the name of Union's airport?
If you’re arriving by air, you won’t have to decide which airport to choose. Union has just one – Greenville-Spartanburg Intl. Airport (GSP).
What airport is best to fly into Union?
GSP is the only major airport in Union. Before you hop on the plane, it’s a good idea to find out a thing or two about it. It sits about 56 kilometres from the downtown area.
How many airlines fly to Union?
There are 7 air carriers that service Union from 19 worldwide airports.
Which airlines fly to Union?
Delta Air Lines and Southwest Airlines operate the majority of flights to Union. One of the most common ways to get there is with a Delta Air Lines flight leaving from Atlanta.
How many nonstop flights are there to Union?
Flying to somewhere new is much simpler when there aren’t any annoying stopovers. If you’re making your way to Union, the great news is that there are 259 direct flights each week.
Where are the most popular flights to Union departing from?
A large number of flights to Union take off from Atlanta, Charlotte and Chicago airports.
How long is the flight to Union Airport?
Where you depart from determines how much of the in-flight entertainment you’ll get to see. From Atlanta to Union, the average flight time is 55 minutes. From Charlotte it’s typically 51 minutes, and from Chicago it’s 1 hour and 52 minutes.
How to book the cheapest flight to Union?
We’ve all come across those lucky travellers who somehow manage to land wonderfully cheap airfares whenever they fly. Eager to know how to do it for your Union holiday? Don’t wait until the very last minute to lock in your flight. Don’t stop there, however. Do some research and see if there are a couple of airports at your destination. Prices often differ depending on which airport you fly into. Don’t forget to compare fares across airlines too. Lastly, be prepared to book quickly if you stumble on a real bargain. It might not stick around for long. With a bit of knowledge and some good fortune, the ideal airfare can be yours.
How to survive the flight to Union?
No matter where you’re coming from, flying can be an enjoyable experience if you prepare well enough. Follow these handy travel tips that will help get your Union holiday started on the right foot.What to pack in your hand luggage:

  • First and foremost, pack your passport, official ID, wallet and medications. Next, you’ll need some in-flight entertainment to help pass the time. A juicy novel and a laptop filled with your favourite shows are some fantastic options. If you hope to catch a few z’s, a neck pillow and a pair of earplugs will also come in handy. Finally, leave space for a toothbrush and some deodorant to ensure you step off the plane looking fresh and raring to go.

Do not pack the following items in your hand luggage:

  • While the list of prohibited items can differ between air carriers, the general rule of thumb is avoid carrying anything flammable, sharp or explosive. This includes things like screwdrivers, pocket knives, fuel and fireworks. Sports equipment like ski poles, and objects that could harm passengers, such as swords and guns, can’t come on board with you either.

What to wear on a flight:

  • The aisles of an aircraft are no fashion runway. Wear comfortable clothes and bring a cardigan as it can get chilly in the cabin on long-haul flights. Enclosed, flat shoes are always a good choice too.
  • Most travellers have heard about deep vein thrombosis (DVT), a blood clotting condition caused by reduced mobility or inactivity. There’s plenty you can do to lower your risk. Wear a good-quality pair of compression tights or socks, drink plenty of water and remember to keep your legs and feet moving. Do a few laps of the cabin or try out some exercises in your seat.

How to get through airport security fast when flying to Union?
The secret is to be well prepared before you get to airport security. That way, you’ll be hopping onto that plane to Union in no time flat. Follow these helpful tips and get your holiday off to a great start:

  • Security personnel first need to know that you have a valid passport and travel documents before you’re allowed to proceed any further. Keep them close by.
  • Next up, both you and your carry-on bag will be X-rayed. To make the process quick and painless, remove anything that might trigger the alarms. Personal belongings like your belt, coat and earphones need to go through the machine.
  • All your electronic devices, including your tablet and phone, will also need to be scanned separately.
  • Any liquids or gels, such as shampoo or hairspray, that you want to take on board must be no greater than 3.4 ounces (100 milliliters). Also, they all must fit inside a quart-size (one litre), clear zip-close bag.
  • It’s also likely that you’ll be required to remove your shoes to be X-rayed, so wearing slip-on shoes is always a clever idea.
  • Avoid taking prohibited items in your carry-on bag. If you have any sharp objects like a pocket knife or tools, pack them safely away in your checked baggage. They won’t be allowed on board.

Flights to Union information
Destination airport
Greenville-Spartanburg Intl.
Destination airport IATA code
GSP
Destination city name
Greenville
Return price
S$596
*Available to Expedia members.