$166 Cheap United flights Harrisburg (MDT) to Greenville (GSP)

View $166 flight on Wed, Jan 14, 2026Opens in a new window

$166 Cheap United flights Harrisburg (MDT) to Greenville (GSP)

Prices were available within the past 7 days and start at $166 for one-way flights and $229 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Jan 14 - Wed, Jan 21
MDT
Harrisburg
GSP
Greenville
$229 Roundtrip, found 5 days ago
$229
Roundtrip
found 5 days ago
Select United flight, departing Wed, Jan 14 from Harrisburg to Greenville, returning Wed, Jan 21, priced at $229 found 5 days ago
United
Sat, Oct 18 - Wed, Oct 29
MDT
Harrisburg
GSP
Greenville
$275 Roundtrip, found 21 hours ago
$275
Roundtrip
found 21 hours ago
Select United flight, departing Sat, Oct 18 from Harrisburg to Greenville, returning Wed, Oct 29, priced at $275 found 21 hours ago
United
Wed, Nov 5 - Wed, Nov 12
MDT
Harrisburg
GSP
Greenville
$293 Roundtrip, found 6 days ago
$293
Roundtrip
found 6 days ago
Select United flight, departing Wed, Nov 5 from Harrisburg to Greenville, returning Wed, Nov 12, priced at $293 found 6 days ago
United
Sat, Oct 18 - Wed, Oct 29
MDT
Harrisburg
GSP
Greenville
$318 Roundtrip, found 21 hours ago
$318
Roundtrip
found 21 hours ago
Select United flight, departing Sat, Oct 18 from Harrisburg to Greenville, returning Wed, Oct 29, priced at $318 found 21 hours ago
Flights from Harrisburg (MDT) to Greenville (GSP)
Origin airport
Harrisburg Intl.
Destination airport
Greenville-Spartanburg Intl.
Airlines serving
American Airlines, Delta, United
Popular airline
American Airlines
Distance
472 mi

Frequently asked questions

How much is a United Airlines flight from Harrisburg Intl. Airport (MDT) to Greenville-Spartanburg Intl. Airport (GSP)?
Landing cheap one-way United Airlines flights from MDT to GSP from $166 on Expedia is simple — just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $229 for your next break.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from MDT to GSP with United Airlines?
Search for return or one-way flights to Greenville in January or December. You could find a cheap fare with United Airlines during these off-peak times.
What is the cheapest time to book flights from Harrisburg Intl. Airport (MDT) to Greenville-Spartanburg Intl. Airport (GSP) with United Airlines?
For cheap United Airlines fares from Harrisburg Intl. Airport (MDT) to Greenville-Spartanburg Intl. Airport (GSP), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence the overall price. Sunday is usually the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Harrisburg Intl. Airport (MDT) to Greenville-Spartanburg Intl. Airport (GSP)?
Fill in your dates, hit search and use the "Nonstop" filter on Expedia to browse any direct flights from MDT to GSP with United Airlines or other carriers.
What is the earliest United Airlines flight from MDT to GSP?
To find the earliest departures from MDT to GSP with United Airlines, filter your results by "Morning" and "Early Morning." Choosing an early flight usually means you'll experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Greenville?
Greenville-Spartanburg Intl. Airport (GSP) is the primary Greenville gateway for United Airlines flights from Harrisburg Intl. Airport (MDT).
Why fly with United Airlines from MDT to GSP?
A rewarding loyalty program and the ability to rack up points through United Mileage Plus are the start of the reasons to fly from MDT to GSP with United Airlines. Plus, when you sign up to our One Key™ program, you can earn OneKeyCash™* in addition to any airline loyalty program earnings. It's yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Harrisburg Intl. Airport (MDT) to Greenville-Spartanburg Intl. Airport (GSP)?
It's generally possible to cancel or reschedule your flight, although there may be additional charges if you booked over 24 hours ago. Want to keep your options open? Make use of Expedia's "No cancel fee" and "Changes included" filters to find flights that won't charge extra if you have to revise your plans. To make modifications, go to "Trips," select your flight and click on "Manage Booking" for more information.

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*Available to One Key members.