Earn 40,000 points
to find your place in the sun.Learn more
Book cheap flights from Greenville-Spartanburg to Portland, ME, with Southwest Airlines®. It’s easy to find the Greenville-Spartanburg International Airport / Roger Milliken Field to Portland International Jetport flight to make your booking and travel a breeze. Whether you’re traveling for business or pleasure, solo or with the whole family, you’ll enjoy flying Southwest®. Have flexible travel dates? Plug them into the Low Fare Calendar and see the lowest fares available within your travel window. You may also want to browse Southwest Vacations® to see special offers and package deals on flights, hotels, rental cars, and more.
Explore your options and book your Greenville-Spartanburg to Portland, ME, flight with Southwest today!
Departing from: Greenville-Spartanburg International Airport / Roger Milliken Field (GSP)
Arriving at: Portland International Jetport (PWM)
Other popular flights from Greenville-Spartanburg
|Manchester, NH (MHT)||Boston (BOS)|
|Providence (PVD)||Hartford/Springfield (BDL)|
Start packing! Every ticketed Customer’s first two checked bags are free. Learn more.
At Southwest, we know it takes more than great deals on Portland, ME, airfares and convenient scheduling options to make your trip memorable. So from booking to boarding, we offer services and features designed to make your travel from Greenville-Spartanburg to Portland, ME, the best it can be. Find out more about the Southwest Experience before you book your Greenville-Spartanburg International Airport / Roger Milliken Field to Portland International Jetport flight.
Flying with Southwest is simple and fun, no matter which of our dozens of exciting destinations you choose. And when you search for your next flight to Portland, ME, you know you won’t be surprised at checkout. Low fares, no hidden fees. That’s our Transfarency® promise. And, as always, bags fly free. Enroll in our Click 'N Save® emails and stay up to date on our latest flight deals. Looking for tours, activities, and more hidden gems to add to your Portland, ME, adventure? Explore Southwest Airlines Experiences and earn Rapid Rewards points when you fly.
1First and second checked bags. Weight and size limits apply.
2Fare difference may apply.