$79 Cheap United flights Washington (IAD) to Greenville (GSP)

View $79 flight on Wed, Dec 3, 2025Opens in a new window

$79 Cheap United flights Washington (IAD) to Greenville (GSP)

Prices were available within the past 7 days and start at $79 for one-way flights and $163 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Dec 31 - Wed, Jan 7
IAD
Washington
GSP
Greenville
$163 Roundtrip, found 2 hours ago
$163
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Dec 31 from Washington to Greenville, returning Wed, Jan 7, priced at $163 found 2 hours ago
United
Thu, Jan 22 - Sat, Jan 24
IAD
Washington
GSP
Greenville
$167 Roundtrip, found 2 hours ago
$167
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Jan 22 from Washington to Greenville, returning Sat, Jan 24, priced at $167 found 2 hours ago
United
Wed, Dec 31 - Wed, Jan 7
IAD
Washington
GSP
Greenville
$174 Roundtrip, found 2 hours ago
$174
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Dec 31 from Washington to Greenville, returning Wed, Jan 7, priced at $174 found 2 hours ago
United
Sat, Nov 15 - Wed, Nov 19
IAD
Washington
GSP
Greenville
$189 Roundtrip, found 12 hours ago
$189
Roundtrip
found 12 hours ago
Select United flight, departing Sat, Nov 15 from Washington to Greenville, returning Wed, Nov 19, priced at $189 found 12 hours ago
United
Thu, Jan 22 - Sat, Jan 24
IAD
Washington
GSP
Greenville
$192 Roundtrip, found 2 hours ago
$192
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Jan 22 from Washington to Greenville, returning Sat, Jan 24, priced at $192 found 2 hours ago
United
Wed, Nov 5 - Tue, Nov 11
IAD
Washington
GSP
Greenville
$194 Roundtrip, found 19 hours ago
$194
Roundtrip
found 19 hours ago
Select United flight, departing Wed, Nov 5 from Washington to Greenville, returning Tue, Nov 11, priced at $194 found 19 hours ago

Frequently asked questions

How much is a United Airlines flight from Washington Dulles Intl. Airport (IAD) to Greenville-Spartanburg Intl. Airport (GSP)?
Finding cheap one-way United Airlines flights from IAD to GSP from $79 on Expedia couldn't be simpler — just filter by "Price (lowest to highest)." Or check out our affordable round-trip fares from $163 for your next exciting vacation.**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 IAD to GSP with United Airlines?
Browse for round-trip or one-way flights to Greenville in January or December. You could find an affordable fare with United Airlines during these quieter months.
What is the cheapest time to book flights from Washington Dulles Intl. Airport (IAD) to Greenville-Spartanburg Intl. Airport (GSP) with United Airlines?
To find cheap United Airlines fares from Washington Dulles Intl. Airport (IAD) 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 impact how much you pay. Sunday is usually the most affordable, 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 Washington Dulles Intl. Airport (IAD) to Greenville-Spartanburg Intl. Airport (GSP)?
Skip the layovers and fly from Washington Dulles Intl. Airport (IAD) to Greenville-Spartanburg Intl. Airport (GSP) on any of United Airlines's 12 direct weekly flights. Make use of our "Nonstop" and "Airline" filters to find the United Airlines flight that'll arrive at GSP at a time that suits you.
How long does it take to fly from IAD to GSP with United Airlines?
From takeoff till touchdown, a direct United Airlines flight from Washington Dulles Intl. Airport (IAD) to Greenville-Spartanburg Intl. Airport (GSP) typically takes 1h 38m.
Which day of the week has the most United Airlines flights from Washington Dulles Intl. Airport (IAD) to Greenville-Spartanburg Intl. Airport (GSP)?
If it's flexibility you're after, Wednesday offers the most choice for United Airlines flights from Washington Dulles Intl. Airport (IAD) to Greenville-Spartanburg Intl. Airport (GSP). You can select from 2 different departures.
What is the earliest United Airlines flight from IAD to GSP?
Leaving IAD at 12:40PM UTC-5, the first United Airlines flight to GSP arrives at 2:18PM UTC-5. Flying early means you're less likely to encounter delays.* After something later? The last United Airlines flight from IAD to GSP departs at 5:30PM UTC-5 and touches down at 7:10PM UTC-5.*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?
United Airlines flights from Washington Dulles Intl. Airport (IAD) to Greenville arrive at Greenville-Spartanburg Intl. Airport (GSP). This is the main gateway to this destination.
Why fly with United Airlines from IAD to GSP?
Fly from IAD to GSP with United Airlines and you'll enjoy a host of benefits starting with a rewarding loyalty program. When you book through Expedia as a United Mileage Plus and One Key™ member, you can also earn OneKeyCash™* to use on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Washington Dulles Intl. Airport (IAD) to Greenville-Spartanburg Intl. Airport (GSP)?
You'll probably catch an Embraer ERJ for your United Airlines flight from Washington Dulles Intl. Airport (IAD) to Greenville-Spartanburg Intl. Airport (GSP). However, you may be switched to an alternative aircraft if there's an operational need.
Can I change or cancel my United Airlines flight from Washington Dulles Intl. Airport (IAD) to Greenville-Spartanburg Intl. Airport (GSP)?
Changes are typically free within 24 hours of booking, but your airline may charge a fee after that. For further information about altering your reservation, check out your "Trips," select your flight and click on "Manage Booking." If you want the freedom to change your itinerary without being charged, apply the "No cancel fee" or "Changes included" filter when planning your trip.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Greenville-Spartanburg Intl.
Distance
384 mi
Average flight time
1 hour 37 mins

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*Available to One Key members.