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

View $89 flight on Tue, Aug 26, 2025Opens in a new window

Popular airlines from Greenville-Spartanburg Intl. Airport (GSP) to Baltimore Washington Intl. Airport (BWI)

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Cheap Flights from Greenville to Baltimore (GSP-BWI)

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.

Southwest Airlines
Thu, Dec 11 - Mon, Dec 15
GSP
Greenville
BWI
Baltimore
$177 Roundtrip, found 4 hours ago
$177
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Thu, Dec 11 from Greenville to Baltimore, returning Mon, Dec 15, priced at $177 found 4 hours ago
American Airlines
Sat, Oct 25 - Mon, Oct 27
GSP
Greenville
BWI
Baltimore
$182 Roundtrip, found 8 hours ago
$182
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Sat, Oct 25 from Greenville to Baltimore, returning Mon, Oct 27, priced at $182 found 8 hours ago
Delta
Sat, Aug 30 - Wed, Sep 3
GSP
Greenville
BWI
Baltimore
$183 Roundtrip, found 3 days ago
$183
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Aug 30 from Greenville to Baltimore, returning Wed, Sep 3, priced at $183 found 3 days ago
Southwest Airlines
Tue, Aug 26 - Thu, Aug 28
GSP
Greenville
BWI
Baltimore
$186 Roundtrip, just found
$186
Roundtrip
just found
Select Southwest Airlines flight, departing Tue, Aug 26 from Greenville to Baltimore, returning Thu, Aug 28, priced at $186 just found
Delta
Tue, Aug 26 - Wed, Aug 27
GSP
Greenville
BWI
Baltimore
$187 Roundtrip, found 1 hour ago
$187
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Aug 26 from Greenville to Baltimore, returning Wed, Aug 27, priced at $187 found 1 hour ago
American Airlines
Tue, Dec 9 - Sat, Dec 13
GSP
Greenville
BWI
Baltimore
$187 Roundtrip, found 20 hours ago
$187
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Tue, Dec 9 from Greenville to Baltimore, returning Sat, Dec 13, priced at $187 found 20 hours ago
Southwest Airlines
Tue, Oct 28 - Wed, Oct 29
GSP
Greenville
BWI
Baltimore
$187 Roundtrip, found 22 hours ago
$187
Roundtrip
found 22 hours ago
Select Southwest Airlines flight, departing Tue, Oct 28 from Greenville to Baltimore, returning Wed, Oct 29, priced at $187 found 22 hours ago
Delta
Mon, Dec 22 - Wed, Dec 31
GSP
Greenville
BWI
Baltimore
$188 Roundtrip, found 5 days ago
$188
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Dec 22 from Greenville to Baltimore, returning Wed, Dec 31, priced at $188 found 5 days ago
Delta
Tue, Aug 19 - Wed, Aug 20
GSP
Greenville
BWI
Baltimore
$189 Roundtrip, found 1 day ago
$189
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Aug 19 from Greenville to Baltimore, returning Wed, Aug 20, priced at $189 found 1 day ago
United
Thu, Sep 4 - Sat, Sep 6
GSP
Greenville
BWI
Baltimore
$543 Roundtrip, found 20 hours ago
$543
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Sep 4 from Greenville to Baltimore, returning Sat, Sep 6, priced at $543 found 20 hours ago

Find the cheapest month to fly from Greenville (GSP) to Baltimore (BWI)

March is typically the cheapest month to fly

From $107 - $610 per traveler.

Graph displaying average flight prices per month

Alternative airports near Baltimore

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

Select flight to Ronald Reagan Washington National DCA. Cheapest option available. Average driving time to city center is 57 minutes. Flights from $199
DCA
Ronald Reagan Washington National
Cheapest
Average driving time to city center57 min
Flights from $199
Flights from Greenville (GSP) to Baltimore (BWI)
Origin airport
Greenville-Spartanburg Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$177
Distance
425 mi
Average flight time
1 hour 30 mins

Greenville to Baltimore Flights

The cheapest times to fly from Greenville to Baltimore

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

 

The best time to book a flight from Greenville to Baltimore

Sunday is one of the best days to book for cheap flights from Greenville to Baltimore: 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 Greenville to Baltimore

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 Greenville to Baltimore 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 Greenville to Baltimore 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 Greenville to Baltimore 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 Greenville-Spartanburg Intl. Airport (GSP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Book cheap return tickets starting from $177 from Greenville-Spartanburg Intl. Airport (GSP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). 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 GSP on August 18 2025 and touching down at BWI. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from GSP to BWI?
The cheapest flights from GSP to BWI 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 Greenville-Spartanburg Intl. Airport (GSP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Hop on a nonstop flight with Southwest Airlines and head straight from Greenville-Spartanburg Intl. Airport (GSP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI).
What is the cheapest airline that flies from GSP to BWI?
Take off from GSP to BWI with Southwest Airlines. This carrier currently offers the lowest one-way fare on this route, starting from $89. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from GSP on September 10 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Greenville-Spartanburg Intl. Airport (GSP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
On average, Greenville-Spartanburg Intl. Airport (GSP) only offers 1 nonstop flight to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) each day. For additional options, try our easy-to-use filters. Enter your travel dates, then click on "1 Stop" or "2+ Stops" to find flights with layovers.
What are the most popular departure times for flights from Greenville-Spartanburg Intl. Airport (GSP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
More people fly between GSP and BWI at 8 AM than at any other time of day. Looking for a quieter experience? Consider flying outside peak hours and it's possible you'll save on your ticket as well.
What day of the week has the most flights from GSP to BWI?
Travel on a Friday if you're after the best selection of flights from Greenville-Spartanburg Intl. Airport (GSP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI).
What is the earliest flight from Greenville-Spartanburg Intl. Airport (GSP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Greenville-Spartanburg Intl. Airport (GSP)'s first flight to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) leaves at approximately 7:05AM UTC-5. With a total flight time of 1h 40m, you'll land at around 8:45AM UTC-5.
How long does it take to fly from Greenville-Spartanburg Intl. Airport (GSP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
The average flight time from GSP to BWI is 1 hour and 35 minutes, covering a distance of 430 mi.
What is the best time to fly from Greenville-Spartanburg Intl. Airport (GSP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Opt for a flight from Greenville-Spartanburg Intl. Airport (GSP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour 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 Baltimore from Greenville-Spartanburg Intl. Airport (GSP)?
You can land at any one of these Baltimore airports after your direct flight from Greenville-Spartanburg Intl. Airport (GSP):

  • Ronald Reagan Washington National Airport (DCA)
  • Washington Dulles Intl. Airport (IAD)
  • Baltimore Washington Intl. Thurgood Marshall Airport (BWI)

Is it cheaper to buy a plane ticket from Greenville-Spartanburg Intl. Airport (GSP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Waiting until just before your trip to book a ticket from GSP to BWI often results in higher prices. Although you may find some last-minute discounts, they aren't always guaranteed. Be flexible with your itinerary for the best chance of scoring a bargain.
Is it cheaper to book a GSP to BWI flight and hotel package?
Booking a GSP to BWI flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Pick from our impressive range of accommodations and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Greenville-Spartanburg Intl. Airport (GSP) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
In most cases, you can modify or cancel your GSP to BWI flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you'd like further information, go to our Customer Service portal.

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