$69 Cheap United flights Greenville (GSP) to Washington (IAD)

View $69 flight on Thu, Aug 7, 2025Opens in a new window

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$69 Cheap United flights Greenville (GSP) to Washington (IAD)

Prices were available within the past 7 days and start at $69 for one-way flights and $137 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Aug 4 - Wed, Aug 6
GSP
Greenville
IAD
Washington
$137 Roundtrip, found 3 hours ago
$137
Roundtrip
found 3 hours ago
Select United flight, departing Mon, Aug 4 from Greenville to Washington, returning Wed, Aug 6, priced at $137 found 3 hours ago
United
Tue, Sep 9 - Thu, Sep 11
GSP
Greenville
IAD
Washington
$144 Roundtrip, found 4 hours ago
$144
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Sep 9 from Greenville to Washington, returning Thu, Sep 11, priced at $144 found 4 hours ago
United
Wed, Sep 3 - Sat, Sep 6
GSP
Greenville
IAD
Washington
$144 Roundtrip, found 2 days ago
$144
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 3 from Greenville to Washington, returning Sat, Sep 6, priced at $144 found 2 days ago
United
Wed, Aug 20 - Sat, Aug 23
GSP
Greenville
IAD
Washington
$149 Roundtrip, found 2 days ago
$149
Roundtrip
found 2 days ago
Select United flight, departing Wed, Aug 20 from Greenville to Washington, returning Sat, Aug 23, priced at $149 found 2 days ago
United
Sat, Aug 2 - Mon, Aug 4
GSP
Greenville
IAD
Washington
$163 Roundtrip, found 3 hours ago
$163
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Aug 2 from Greenville to Washington, returning Mon, Aug 4, priced at $163 found 3 hours ago
United
Thu, Aug 28 - Sun, Aug 31
GSP
Greenville
IAD
Washington
$168 Roundtrip, found 16 hours ago
$168
Roundtrip
found 16 hours ago
Select United flight, departing Thu, Aug 28 from Greenville to Washington, returning Sun, Aug 31, priced at $168 found 16 hours ago
Flights from Greenville (GSP) to Washington (IAD)
Origin airport
Greenville-Spartanburg Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, United
Popular airline
United
Distance
384 mi
Average flight time
1 hour 35 mins

Frequently asked questions

How much is a United Airlines flight from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD)?
Finding cheap one-way United Airlines flights from GSP to IAD from $69 on Expedia is a cinch --- just filter by "Price (lowest to highest)." Or check out our budget-friendly round-trip fares from $137 for your next exciting getaway.**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 GSP to IAD with United Airlines?
United Airlines flights to Washington are often cheaper in the off-peak months of January and February. Whether you need a one-way or a return ticket, you could score a better deal then.
What is the cheapest time to book flights from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD) with United Airlines?
To find cheap United Airlines fares from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD), 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 affect the price you pay. Sunday is typically 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 Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD)?
Easily travel from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD) on any of United Airlines's 12 direct weekly flights. Apply Expedia's "Nonstop" and "Airline" filters to find the United Airlines flight that'll take you to IAD at your preferred time.
How long does it take to fly from GSP to IAD with United Airlines?
From takeoff to arrival, a direct United Airlines flight from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD) typically takes 1h 35m.
Which day of the week has the most United Airlines flights from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD)?
United Airlines operates the most flights from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD) on Tuesday. With up to 2 daily departures, you'll get the most choice and flexibility on this day.
What is the earliest United Airlines flight from GSP to IAD?
The first flight from GSP to IAD with United Airlines departs at 9:45AM UTC-5. You'll touch down at 11:20AM UTC-5. The last United Airlines flight of the day takes off at 2:55PM UTC-5 and arrives at 4:30PM UTC-5. With around 20% fewer cancellations for early and mid-morning departures, beginning your travel day early is typically the wisest option.**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 Washington?
When jetting off from Greenville-Spartanburg Intl. Airport (GSP) to Washington with United Airlines, you'll most likely touch down at Washington Dulles Intl. Airport (IAD). This is the airline's main hub here. Other nearby airports like Ronald Reagan Washington National Airport (DCA) and Baltimore Washington Intl. Thurgood Marshall Airport (BWI) may offer cheaper flights, so it's a smart idea to explore all available options on Expedia.
Why fly with United Airlines from GSP to IAD?
A rewarding loyalty program and the chance to rack up points through United Mileage Plus are the start of the reasons to travel from GSP to IAD with United Airlines. Plus, when you sign up to our One Key™ program, you can earn OneKeyCash™* on top of United Airlines's 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.
What type of plane does United Airlines fly from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD)?
Most likely, you'll travel on an Embraer ERJ for your United Airlines flight from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD). 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 Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD)?
Depending on the ticket type you purchased, a fee may apply if you modify or cancel your flight more than 24 hours after it has been confirmed. To find flexible fares, select our "Changes included" and "No cancel fee" boxes while searching for flights. To learn more about canceling or changing your reservation, go to "Trips," select your flight and click on "Manage Booking."

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