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Dulles Intl

$109+ Cheap flights from Charleston (CHS) 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — IAD
Aug 22 — Aug 291
Sat 8/22
Sat 8/29
1 adult, Economy
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Cheapflights Tip: The best prices from Charleston to Washington, D.C. Dulles Intl are usually found in November or February, booked 48 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Charleston to Dulles Intl

Cheapest flights from Charleston to Dulles Intl
Explore the most affordable flight options available from Charleston to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.

This United Airlines deal was found by Cheapflights users on 7/20. 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.
Sat 9/52:54 pm
CHS
-
IAD
Nonstop1h 32m
United Airlines
Sat 9/121:00 pm
IAD
-
CHS
Nonstop1h 50m
United Airlines
Deal found 7/20$207
This United Airlines deal was found by Cheapflights users on 7/20. 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 8/132:54 pm
CHS
-
IAD
Nonstop1h 32m
United Airlines
Thu 8/208:15 am
IAD
-
CHS
Nonstop1h 48m
United Airlines
Deal found 7/20$217
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:15 am
CHS
-
IAD
1 stop8h 29m
Multiple Airlines
Sat 8/294:52 pm
IAD
-
CHS
1 stop15h 46m
Multiple Airlines
Deal found 7/18$220
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:15 am
CHS
-
IAD
1 stop8h 29m
Multiple Airlines
Wed 8/266:09 pm
IAD
-
CHS
1 stop18h 55m
Multiple Airlines
Deal found 7/18$226
This Delta deal was found by Cheapflights users on 7/22. 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.
Sat 9/56:10 am
CHS
-
IAD
1 stop5h 39m
Delta
Sun 9/68:28 am
IAD
-
CHS
1 stop5h 24m
Delta
Deal found 7/22$227
This United Airlines deal was found by Cheapflights users on 7/22. 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.
Fri 8/2810:14 am
CHS
-
IAD
Nonstop1h 31m
United Airlines
Mon 8/318:15 am
IAD
-
CHS
Nonstop1h 48m
United Airlines
Deal found 7/22$228
This United Airlines deal was found by Cheapflights users on 7/21. 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 8/2710:14 am
CHS
-
IAD
Nonstop1h 31m
United Airlines
Sun 8/301:20 pm
IAD
-
CHS
Nonstop1h 50m
United Airlines
Deal found 7/21$233
This Delta deal was found by Cheapflights users on 7/19. 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.
Sat 8/156:10 am
CHS
-
IAD
1 stop5h 39m
Delta
Sat 8/225:47 pm
IAD
-
CHS
1 stop4h 04m
Delta
Deal found 7/19$237
This United Airlines deal was found by Cheapflights users on 7/22. 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.
Fri 8/217:51 pm
CHS
-
IAD
Nonstop1h 41m
United Airlines
Tue 8/251:20 pm
IAD
-
CHS
Nonstop1h 50m
United Airlines
Deal found 7/22$238
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/253:13 pm
CHS
-
IAD
1 stop18h 54m
Multiple Airlines
Thu 8/276:20 am
IAD
-
CHS
2 stops16h 27m
Multiple Airlines
Deal found 7/20$241
This United Airlines deal was found by Cheapflights users on 7/22. 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.
Sat 8/87:46 pm
CHS
-
IAD
Nonstop1h 44m
United Airlines
Wed 10/1410:20 pm
IAD
-
CHS
Nonstop1h 55m
United Airlines
Deal found 7/22$243
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:15 am
CHS
-
IAD
1 stop8h 29m
Multiple Airlines
Tue 8/258:39 pm
IAD
-
CHS
2 stops18h 49m
Multiple Airlines
Deal found 7/21$244

Find flight deals from Charleston to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Charleston (CHS) 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 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$197
(United Airlines)

One-way from

$109
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$334

Good round-trip deal

$401 or less

Good one-way deal

$243 or less
Provider with most accurate pricing for Charleston-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Charleston-Washington, D.C. Dulles Intl flights.
Search Deals
From Charleston to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Charleston to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Charleston to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Charleston to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Charleston 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 23, 2026.
Use the filters below to find and compare flights from Charleston to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Sat 10/3

7:53 pm-9:30 pm

Nonstop1h 37m

Washington, D.C. Dulles Intl

Wed 10/7

1:10 pm-3:00 pm

Nonstop1h 50m

$217
Quickest round-trip

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Thu 11/5

10:19 am-11:43 am

Nonstop1h 24m

Washington, D.C. Dulles Intl

Sun 11/8

12:35 pm-2:13 pm

Nonstop1h 38m

$233

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Thu 8/13

5:10 am-9:20 am

1 stop4h 10m

Washington, D.C. Dulles Intl

Thu 8/20

6:00 am-10:20 am

1 stop4h 20m

$237

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Sat 8/15

6:10 am-11:49 am

1 stop5h 39m

Washington, D.C. Dulles Intl

Sat 8/22

5:47 pm-9:51 pm

1 stop4h 04m

$237

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Thu 8/13

5:10 am-9:20 am

1 stop4h 10m

Washington, D.C. Dulles Intl

Mon 8/17

5:47 pm-10:07 pm

1 stop4h 20m

$247

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Wed 8/26

1:01 pm-8:05 pm

1 stop7h 04m

Washington, D.C. Dulles Intl

Sat 8/29

5:47 pm-11:59 pm

1 stop6h 12m

$247

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Fri 8/14

7:51 pm-9:32 pm

Nonstop1h 41m

Washington, D.C. Dulles Intl

Fri 8/21

1:20 pm-3:10 pm

Nonstop1h 50m

$249

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Thu 10/29

12:31 pm-5:17 pm

1 stop4h 46m

Washington, D.C. Dulles Intl

Sun 11/1

6:00 am-10:10 am

1 stop4h 10m

$253

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Fri 9/4

6:45 pm-12:34 am

1 stop5h 49m

Washington, D.C. Dulles Intl

Tue 9/8

3:15 pm-7:38 pm

1 stop4h 23m

$253

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Tue 10/6

5:30 am-9:12 am

1 stop3h 42m

Washington, D.C. Dulles Intl

Sun 10/11

6:00 am-11:26 am

1 stop5h 26m

$263

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/19

Showing 1-10 of 23 resultsSorted by cheapest first
1
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3

Compare providers for flights from Charleston to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Charleston to Dulles Intl in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Charleston-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Charleston-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Charleston-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Charleston-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Charleston-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Charleston to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Charleston 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 Charleston to Washington, D.C. Dulles Intl Airport

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

The best time to book flights from Charleston to Washington, D.C. Dulles Intl Airport is 47 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Charleston to Washington, D.C. Dulles Intl Airport (average of $231). Flying from Charleston to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $364). 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 CHS to IAD?

Find hourly flight availability from Charleston 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 23, 2026.

When flying from Charleston to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 41% versus a flight in the evening.

How much does it cost to fly round-trip from Charleston to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment.

Charleston to Washington, D.C. Dulles Intl Airport flights typically cost between $249 and $426 in August.
The cheapest round-trip price found within the last 5 days was $197 on United Airlines (Aug 20-Aug 27).

The best insider tips for Charleston to Washington, D.C. Dulles Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Charleston to Washington, D.C. Dulles Intl Airport trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on IAD and CHS

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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 23, 2026.
Read reviews from past customers who have flown Delta and United Airlines from Charleston to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,479 reviews

Boarding

8.1

Overall

7.8

Entertainment

7.8

Comfort

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,479 reviews
Delta
7.8
Good
8,479 reviews

Boarding

8.1

Overall

7.8

Entertainment

7.8

Comfort

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
10,024 reviews
Delta
7.8
Good
8,479 reviews

Boarding

8.1

Overall

7.8

Entertainment

7.8

Comfort

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from Charleston 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 Charleston to Washington, D.C. Dulles Intl?

    Charleston (CHS), located 10.2 mi from the city center, is the airport you fly out of when you book flights from Charleston to Washington, D.C. Dulles Intl. 2 airlines have flights from Charleston to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Charleston to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 12 outbound flights to Washington, D.C. Dulles Intl per day.

  • How long is the flight from Charleston to Washington, D.C. Dulles Intl Airport?

    United Airlines and Delta can get you from Charleston to Washington, D.C. Dulles Intl Airport in just under 1h 37m. Your travel time can differ by up to 2h 33m. Charleston and Washington, D.C. Dulles Intl Airport are separated by a distance of 442 mi. This flight may include one or multiple stops.

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

    Delta, at $156, was found to be the cheapest airline from Charleston to Washington, D.C. Dulles Intl Airport. An alternate airline flying to your destination would be United Airlines. Delta is currently priced 46% below the average price you’ll pay for this route.

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

    No one likes to see their flight delayed. When booking a flight from Charleston to Washington, D.C. Dulles Intl Airport consider choosing ANA (100%), Republic Airways (95%) or Austrian Airlines (93%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from Charleston to Washington, D.C. Dulles Intl Airport is $158. On average you can expect to pay $2,023. The most popular route, (Charleston - Washington, D.C. Dulles Intl), can usually be booked for $207.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Charleston 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 Charleston to Washington, D.C. Dulles Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Charleston to Washington, D.C. Dulles Intl Airport (average of $231). Flying from Charleston to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $364). 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 Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Tysons
Arlington
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Hanover
Manassas
Laurel
Sterling
Clinton
Hunt Valley
Cordova

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Top 2 airlines flying from Charleston to Dulles Intl

Discover the top 2 airlines that operate flights from Charleston 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 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$156Average$287FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$180Average$279FlexibilityNo cancel feeOn-time69%

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