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Dulles Intl

$69+ Cheap flights from Greenville (GSP) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — IAD
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Greenville to Washington, D.C. Dulles Intl are usually found in May or August, booked 78 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Greenville to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Greenville (GSP) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 3, 2025.

Round-trip from

$189
(United Airlines)

One-way from

$69
(United Airlines)

Popular in

November

Cheapest in

May

Average price

$348

Good round-trip deal

$465 or less

Good one-way deal

$258 or less
From Greenville to Washington, D.C. Dulles Intl
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One-way flight from Greenville to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 9% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Greenville to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Greenville to Washington, D.C. Dulles Intl.
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Find flight deals from Greenville to Dulles Intl

Cheapest flights from Greenville to Dulles Intl
Explore the most affordable flight options available from Greenville to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/242:52 pmGSP - IAD
Nonstop1h 38mUnited Airlines
Tue 7/298:15 amIAD - GSP
Nonstop1h 37mUnited Airlines
Deal found 7/2$189
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/75:30 amGSP - IAD
1 stop3h 49mDelta
Sun 8/106:00 amIAD - GSP
1 stop4h 32mDelta
Deal found 7/2$209
This Mytrip deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/239:53 pmGSP - IAD
2 stops21h 50mAllegiant Air
Sun 10/2610:08 amIAD - GSP
1 stop10h 55mAllegiant Air
Deal found 7/1$252
This Mytrip deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/233:37 pmGSP - IAD
3 stops19h 43mMultiple Airlines
Sun 10/2610:08 amIAD - GSP
1 stop10h 55mMultiple Airlines
Deal found 7/1$275

Cheapflights Fare Finder

Customize your flight search to find flights from Greenville to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
Use the filters below to find and compare flights from Greenville to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Greenville

Fly to

Dulles Intl

Route

Depart

Return

Price

GreenvilleWashington, D.C.

GSP - IAD

GSPIAD

Greenville

Thu 7/24

2:52 pm-4:30 pm

Nonstop1h 38m

Washington, D.C. Dulles Intl

Tue 7/29

8:15 am-9:52 am

Nonstop1h 37m

$189

GreenvilleWashington, D.C.

GSP - IAD

GSPIAD

Greenville

Thu 8/7

8:07 pm-12:34 am

1 stop4h 27m

Washington, D.C. Dulles Intl

Sun 8/10

6:00 am-10:32 am

1 stop4h 32m

$209

GreenvilleWashington, D.C.

GSP - IAD

GSPIAD

Greenville

Thu 7/24

2:49 pm-9:23 am

2 stops18h 34m

Washington, D.C. Dulles Intl

Tue 7/29

5:40 pm-8:52 pm

3 stops27h 12m

$310

GreenvilleWashington, D.C.

GSP - IAD

GSPIAD

Greenville

Mon 9/8

6:02 am-7:35 am

Nonstop1h 33m

$69

GreenvilleWashington, D.C.

GSP - IAD

GSPIAD

Greenville

Sun 8/10

2:49 pm-9:23 am

2 stops18h 34m

$122

GreenvilleWashington, D.C.

GSP - IAD

GSPIAD

Greenville

Tue 9/9

8:05 am-1:51 pm

1 stop5h 46m

$144

GreenvilleWashington, D.C.

GSP - IAD

GSPIAD

Greenville

Mon 9/22

12:17 pm-11:26 am

3 stops23h 09m

$151

GreenvilleWashington, D.C.

GSP - IAD

GSPIAD

Greenville

Thu 8/7

10:06 am-2:42 pm

1 stop4h 36m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from Greenville to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Greenville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Greenville to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Greenville to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Greenville to Dulles Intl. Price data was last updated on June 27, 2025.

The price you pay for your flight from Greenville to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 77 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Greenville to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Greenville to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Greenville to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GSP to IAD?

Find hourly flight availability from Greenville to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

It’s optimal to fly from Greenville to Washington, D.C. Dulles Intl Airport in the afternoon. By choosing this option you can save up to 55% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Greenville to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Greenville to Dulles Intl. Price data was last updated on June 29, 2025.

Travelers seeking maximum savings on their Greenville to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Greenville to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Greenville to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 3, 2025.

The most flights from GSP to IAD are scheduled on a Monday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated July 3, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and Allegiant Air from Greenville to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.3
Good
708 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Greenville to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Greenville to Washington, D.C. Dulles Intl?

    Greenville (GSP) is the airport you will fly out of if you book a flight from Greenville to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Greenville; the airport handles an average of 9 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Greenville airport to Washington, D.C. Dulles Intl. It is only a 10.4 mi journey to Greenville (GSP) from Greenville’s city center.

  • What are the cheapest airlines flying from Greenville to Washington, D.C. Dulles Intl Airport round-trip?

    Flying on United Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $189. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $209 and $354, respectively. United Airlines is 50% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Greenville to Washington, D.C. Dulles Intl Airport one-way?

    One-way options have recently been found by users for as low as $69 on United Airlines. Other airlines that offer cheap prices include Allegiant Air from $122 and American Airlines from $144 one-way.

  • What are the most reliable airlines from Greenville to Washington, D.C. Dulles Intl Airport?

    The top 3 most reliable airlines when flying from Greenville to Washington, D.C. Dulles Intl Airport are Mesa Airlines (100%), United Airlines (75%) and CommutAir (69%).

  • What are the cheapest flights from Greenville to Washington, D.C. Dulles Intl Airport?

    Looking at all options, your cheapest flight can be booked for $134. While the most popular route (Greenville - Washington, D.C. Dulles Intl) can be booked for $137 on average our data indicates $4,497 when flying from Greenville to Washington, D.C. Dulles Intl Airport.

  • Can I find deals for flights from Greenville to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Greenville to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Greenville to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Greenville to Dulles Intl.

  • Can I find deals for business class flights from Greenville to Dulles Intl?

    Yes. Cheapflights offers flight deals from Greenville to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Greenville to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Greenville to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Greenville to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Greenville?

Book flights to Greenville if you plan to visit one of these locations
Arlington
Woodbridge
Alexandria
Tysons
Silver Spring
Fredericksburg
Linthicum Heights
Gaithersburg
Fairfax
Easton
Towson
Waldorf
Laurel
Falls Church
Rockville
Springfield
National Harbor
Manassas
Dundalk
Bowie

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Alternative routes for Greenville to Dulles Intl

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Top 3 airlines flying from Greenville to Dulles Intl

Discover the top 3 airlines that operate flights from Greenville to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$210Average$364FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$393FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$296Average$392FlexibilityNo cancel feeOn-time71%

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