$69 Cheap Flights from Greenville (GSP) to Washington (IAD)

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

Popular airlines from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Greenville to Washington (GSP-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
Thu, Aug 7 - Mon, Aug 11
GSP
Greenville
IAD
Washington
$137 Roundtrip, found 1 hour ago
$137
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Aug 7 from Greenville to Washington, returning Mon, Aug 11, priced at $137 found 1 hour ago
United
Fri, Sep 19 - Mon, Sep 22
GSP
Greenville
IAD
Washington
$163 Roundtrip, found 1 hour ago
$163
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Sep 19 from Greenville to Washington, returning Mon, Sep 22, priced at $163 found 1 hour ago
United
Thu, Aug 28 - Sun, Aug 31
GSP
Greenville
IAD
Washington
$167 Roundtrip, found 5 hours ago
$167
Roundtrip
found 5 hours ago
Select United flight, departing Thu, Aug 28 from Greenville to Washington, returning Sun, Aug 31, priced at $167 found 5 hours ago
United
Fri, Sep 19 - Mon, Sep 22
GSP
Greenville
IAD
Washington
$168 Roundtrip, found 1 hour ago
$168
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Sep 19 from Greenville to Washington, returning Mon, Sep 22, priced at $168 found 1 hour ago
United
Wed, Aug 13 - Fri, Aug 15
GSP
Greenville
IAD
Washington
$172 Roundtrip, found 5 hours ago
$172
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Aug 13 from Greenville to Washington, returning Fri, Aug 15, priced at $172 found 5 hours ago
United
Tue, Aug 12 - Wed, Sep 3
GSP
Greenville
IAD
Washington
$173 Roundtrip, found 1 day ago
$173
Roundtrip
found 1 day ago
Select United flight, departing Tue, Aug 12 from Greenville to Washington, returning Wed, Sep 3, priced at $173 found 1 day ago
United
Thu, Aug 7 - Mon, Aug 11
GSP
Greenville
IAD
Washington
$182 Roundtrip, found 1 hour ago
$182
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Aug 7 from Greenville to Washington, returning Mon, Aug 11, priced at $182 found 1 hour ago
United
Thu, Jul 17 - Mon, Jul 28
GSP
Greenville
IAD
Washington
$189 Roundtrip, just found
$189
Roundtrip
just found
Select United flight, departing Thu, Jul 17 from Greenville to Washington, returning Mon, Jul 28, priced at $189 just found
Delta
Thu, Jul 17 - Mon, Jul 28
GSP
Greenville
IAD
Washington
$209 Roundtrip, just found
$209
Roundtrip
just found
Select Delta flight, departing Thu, Jul 17 from Greenville to Washington, returning Mon, Jul 28, priced at $209 just found
American Airlines
Thu, Aug 7 - Sun, Aug 10
GSP
Greenville
IAD
Washington
$269 Roundtrip, just found
$269
Roundtrip
just found
Select American Airlines flight, departing Thu, Aug 7 from Greenville to Washington, returning Sun, Aug 10, priced at $269 just found

Find the cheapest month to fly from Greenville (GSP) to Washington (IAD)

March is typically the cheapest month to fly

From $137 - $485 per traveler.

Graph displaying average flight prices per month

Flights from Greenville (GSP) to Washington (IAD)
Origin airport
Greenville-Spartanburg Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$137
Distance
384 mi
Average flight time
1 hour 35 mins

Greenville to Washington Flights

The cheapest times to fly from Greenville to Washington

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

 

The best time to book a flight from Greenville to Washington

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

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 Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $69 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 Washington 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 Washington 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 Washington Dulles Intl. Airport (IAD) cost?
Cheap return flights from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD) start from $189. 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 United flight leaving GSP on July 17 2025 and touching down at IAD. The price was last updated on June 25 2025 and has not changed since.
What is the cheapest month to fly from GSP to IAD?
The cheapest flights from GSP to IAD 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 Washington Dulles Intl. Airport (IAD)?
If you're departing from Greenville-Spartanburg Intl. Airport (GSP), you can get on a nonstop flight to Washington Dulles Intl. Airport (IAD) with United Airlines.
What is the cheapest airline that flies from GSP to IAD?
With tickets starting at $214 for a one-way journey from GSP to IAD, United is currently the cheapest carrier flying this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from GSP on August 19 2025. Prices were last updated on June 25 2025 and have not changed since.
How many flights per day from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD)?
On average, Greenville-Spartanburg Intl. Airport (GSP) only has 1 nonstop flight to Washington Dulles Intl. Airport (IAD) daily. To explore more options, try our easy-to-use filter tool. Enter your preferred travel dates, then click on "1 Stop" or "2+ Stops" to discover flights offering layovers.
What are the most popular departure times for flights from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD)?
Flights between GSP and IAD are their busiest at 2 PM. If you'd like a more relaxed atmosphere and potentially cheaper fares, choose a departure that's outside typical rush times.
What day of the week has the most flights from GSP to IAD?
Travel on a Friday if you're after the biggest selection of flights from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD).
What is the earliest flight from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD)?
Hop on the earliest flight at around 9:45AM UTC-5, departing from Greenville-Spartanburg Intl. Airport (GSP). You'll be flying for around 1h 35m, landing at Washington Dulles Intl. Airport (IAD) at approximately 11:20AM UTC-5.
How long does it take to fly from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD)?
It usually takes 1 hour and 35 minutes to cover the 390 mi from GSP to IAD.
What airline has the least delays from GSP to IAD?
United Airlines has the best track record for on-time direct flights from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD), with an on-time rating of 82%. Use the Expedia App to look up your journey status before you head off and get immediate updates about any changes.
What is the best time to fly from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD)?
To avoid potential delays on the Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD) route, fly before 3 PM. Flights after this time are 22% more likely to be canceled.**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 Washington from Greenville-Spartanburg Intl. Airport (GSP)?
You can land at any one of these Washington airports following 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 Washington Dulles Intl. Airport (IAD) last-minute?
Waiting until just before your trip to book a flight from GSP to IAD often results in higher prices. While you may come across some last-minute deals, they're not always guaranteed. Allow some flexibility in your schedule to boost your chances of landing a bargain.
Is it cheaper to book a GSP to IAD flight and hotel package?
Compared with arranging flights and hotels separately, booking a GSP to IAD flight and hotel package with Expedia could lead to significant savings. Better yet, managing everything in one place will take the hassle out of travel planning. Just secure your flights and choose from our extensive range of stays, then personalize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Greenville-Spartanburg Intl. Airport (GSP) to Washington Dulles Intl. Airport (IAD)?
If you reserved your GSP to IAD flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

Explore a world of travel with Expedia

*Available to One Key members.