$129 Cheap Flights from St. Louis (STL) to Greenville (GSP)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Greenville-Spartanburg Intl. Airport (GSP)

Find available prices by choosing your travel dates.

Cheap Flights from St. Louis to Greenville (STL-GSP)

Prices were available within the past 7 days and start at $129 for one-way flights and $252 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
American Airlines
Delta
Southwest Airlines
American Airlines
Southwest Airlines
Southwest Airlines
American Airlines
Southwest Airlines
Southwest Airlines
Flights from St. Louis (STL) to Greenville (GSP)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Greenville-Spartanburg Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$252
Distance
523 mi

St. Louis to Greenville Flights

The cheapest times to fly from St. Louis to Greenville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Greenville are during the month of May. You can find some of the cheapest flights from St. Louis to Greenville with Expedia's search tool and vast selection of airlines.

The best time to book a flight from St. Louis to Greenville

Sunday is one of the best days to book for cheap flights from St. Louis to Greenville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from St. Louis to Greenville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Greenville in 2025. You can also book with separate airlines for your outbound and return journeys, from $129 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Greenville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Greenville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

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

Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to GSP last minute?
Being a spontaneous soul is a great way to discover the world, but it isn’t necessarily the smartest method to nab a cheap fare. It’s better to book your Lambert-St. Louis Intl. Airport (STL) to GSP trip well ahead of time rather than waiting until the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. You can unleash your spontaneous side when you get to GSP!
What airports do you fly into for Greenville from St. Louis?
Greenville-Spartanburg Intl. Airport (GSP), Asheville Regional Airport (AVL) and Greenville, SC (GMU-Greenville Downtown) are your choices when taking off from St. Louis to Greenville. Roughly 11 mi east of central Greenville, Greenville-Spartanburg Intl. Airport (GSP) is the city’s major hub. Consider things like flight schedules and the distance to your hotel before settling on an airport. Haywood Mall and Furman University are two great attractions to visit when you arrive at your destination.
Can I change the date of my flight from STL to Greenville-Spartanburg Intl. Airport (GSP)?
Expedia makes it easy to make changes to your Lambert Field to GSP trip yourself. Access your details via the Expedia Trips portal and tap “change flight.” Search for new flights and lock in the one that works with your new plans. You’ll get an estimate of any flight change fees. You can also head to our Customer Service portal to chat to our Virtual Agent and quickly get answers to all your questions.

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*Available to One Key members.