$89 Cheap Flights from Baltimore (BWI) to Greenville (GSP)

View $89 flight on Thu, May 15, 2025Opens in a new window
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Cheap Flights from Baltimore to Greenville (BWI-GSP)

Prices were available within the past 7 days and start at $89 for one-way flights and $177 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Jun 4 - Tue, Jun 10
BWI
Baltimore
GSP
Greenville
$177 Roundtrip, found 4 hours ago
$177
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Jun 4 from Baltimore to Greenville, returning Tue, Jun 10, priced at $177 found 4 hours ago
Southwest Airlines
Wed, Jun 4 - Tue, Jun 10
BWI
Baltimore
GSP
Greenville
$177 Roundtrip, found 4 hours ago
$177
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Wed, Jun 4 from Baltimore to Greenville, returning Tue, Jun 10, priced at $177 found 4 hours ago
Southwest Airlines
Wed, Jun 4 - Tue, Jun 10
BWI
Baltimore
GSP
Greenville
$177 Roundtrip, found 4 hours ago
$177
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Wed, Jun 4 from Baltimore to Greenville, returning Tue, Jun 10, priced at $177 found 4 hours ago
American Airlines
Tue, Jul 22 - Tue, Jul 29
BWI
Baltimore
GSP
Greenville
$182 Roundtrip, found 11 hours ago
$182
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Tue, Jul 22 from Baltimore to Greenville, returning Tue, Jul 29, priced at $182 found 11 hours ago
Southwest Airlines
Sat, May 24 - Mon, May 26
BWI
Baltimore
GSP
Greenville
$184 Roundtrip, found 2 days ago
$184
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Sat, May 24 from Baltimore to Greenville, returning Mon, May 26, priced at $184 found 2 days ago
Southwest Airlines
Thu, Jun 5 - Mon, Jun 9
BWI
Baltimore
GSP
Greenville
$185 Roundtrip, found 1 day ago
$185
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Thu, Jun 5 from Baltimore to Greenville, returning Mon, Jun 9, priced at $185 found 1 day ago
Delta
Wed, May 14 - Wed, May 28
BWI
Baltimore
GSP
Greenville
$187 Roundtrip, found 1 day ago
$187
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, May 14 from Baltimore to Greenville, returning Wed, May 28, priced at $187 found 1 day ago
Southwest Airlines
Thu, Jun 5 - Mon, Jun 9
BWI
Baltimore
GSP
Greenville
$187 Roundtrip, found 1 day ago
$187
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Thu, Jun 5 from Baltimore to Greenville, returning Mon, Jun 9, priced at $187 found 1 day ago
Delta
Wed, Jun 4 - Tue, Jun 10
BWI
Baltimore
GSP
Greenville
$189 Roundtrip, found 4 hours ago
$189
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Jun 4 from Baltimore to Greenville, returning Tue, Jun 10, priced at $189 found 4 hours ago
United
Tue, Jul 22 - Tue, Jul 29
BWI
Baltimore
GSP
Greenville
$503 Roundtrip, found 11 hours ago
$503
Roundtrip
found 11 hours ago
Select United flight, departing Tue, Jul 22 from Baltimore to Greenville, returning Tue, Jul 29, priced at $503 found 11 hours ago
Flights from Baltimore (BWI) to Greenville (GSP)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Greenville-Spartanburg Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$176
Distance
425 mi

Baltimore to Greenville Flights

The cheapest times to fly from Baltimore 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 Baltimore to Greenville are during the month of June. You can find some of the cheapest flights from Baltimore to Greenville with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Baltimore to Greenville

Sunday is one of the best days to book for cheap flights from Baltimore 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 Baltimore 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 Baltimore to Greenville in 2025. You can also book with separate airlines for your outbound and return journeys, from $89 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 Baltimore 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 Baltimore 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

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greenville-Spartanburg Intl. Airport (GSP) cost?
Cheap return fares from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greenville-Spartanburg Intl. Airport (GSP) start at $177. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines flight leaving BWI on May 13 2025 and touching down at GSP. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from BWI to GSP?
The cheapest flights from BWI to GSP are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greenville-Spartanburg Intl. Airport (GSP)?
You can fly nonstop from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greenville-Spartanburg Intl. Airport (GSP) on a Southwest Airlines flight.
What is the cheapest airline that flies from BWI to GSP?
At the moment, the cheapest carrier offering one-way flights from BWI to GSP is Southwest Airlines. You can jet off on this route from $89. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BWI on May 21 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greenville-Spartanburg Intl. Airport (GSP)?
On average, Baltimore Washington Intl. Thurgood Marshall Airport (BWI) only offers 1 nonstop flight to Greenville-Spartanburg Intl. Airport (GSP) each day. For additional options, try Expedia’s easy-to-use filter tool. Just enter your travel details, then select “1 Stop” or “2+ Stops” to discover flights with layovers.
What are the most popular departure times for flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greenville-Spartanburg Intl. Airport (GSP)?
More people fly between BWI and GSP at 8 AM than at any other time of day. Looking to skip the crowds? Consider flying outside peak hours and you could save on your ticket as well.
What day of the week has the most flights from BWI to GSP?
If you jet off on a Friday, you’ll get the largest range of options for flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greenville-Spartanburg Intl. Airport (GSP).
What is the earliest flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greenville-Spartanburg Intl. Airport (GSP)?
The first flight of the day leaving Baltimore Washington Intl. Thurgood Marshall Airport (BWI) is at around 8:10AM UTC-5. Hop on this flight and you’ll touch down at Greenville-Spartanburg Intl. Airport (GSP) at approximately 9:50AM UTC-5. The total flight duration is 1h 40m.
How long does it take to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greenville-Spartanburg Intl. Airport (GSP)?
Flights from BWI to GSP have an average travel time of 1 hour and 39 minutes. The total distance between the two airports is 430 mi.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greenville-Spartanburg Intl. Airport (GSP)?
Choose a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greenville-Spartanburg Intl. Airport (GSP) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Greenville from Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
If you’re flying on a direct flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greenville, Greenville-Spartanburg Intl. Airport (GSP) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greenville-Spartanburg Intl. Airport (GSP) last-minute?
Last-minute bookings from BWI to GSP are generally more expensive. To secure the best prices, start looking for flights well in advance. That being said, if you’re flexible with your travel plans, you may score a cheap ticket just before your departure.
Is it cheaper to book a BWI to GSP flight and hotel package?
Compared with arranging hotels and flights separately, booking a BWI to GSP flight and hotel package with Expedia could result in significant savings. What’s more, having everything in one place takes the hassle out of travel planning. Just secure your flights and select from our wide range of stays, then tailor your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Greenville-Spartanburg Intl. Airport (GSP)?
It’s usually possible to cancel or reschedule your BWI to GSP flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline’s policies in your itinerary to see what changes are possible and whether any costs are involved. You’ll also find more details on our Customer Service portal.

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*Available to One Key members.