HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$115+ 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — IAD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Charleston to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Charleston to Washington, D.C. Dulles Intl are usually found in May or October, booked 69 days in advance, depart on a Friday or Tuesday and return on a Tuesday

Cheap 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 June 12, 2025.

Round-trip from

$186
(United Airlines)

One-way from

$115
(United Airlines)

Popular in

November

Cheapest in

May

Average price

$334

Good round-trip deal

$615 or less

Good one-way deal

$288 or less
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. 7% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
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

Find 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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/9. 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.
Mon 6/239:50 amCHS - IAD
Nonstop1h 35mUnited Airlines
Mon 9/228:20 amIAD - CHS
Nonstop1h 47mUnited Airlines
Deal found 6/9$186
This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 7/27:00 amCHS - IAD
1 stop4h 59mDelta
Fri 7/43:31 pmIAD - CHS
1 stop6h 15mDelta
Deal found 6/10$199
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/145:00 amCHS - IAD
1 stop3h 46mAmerican Airlines
Sat 9/202:21 pmIAD - CHS
1 stop6h 44mAmerican Airlines
Deal found 6/12$254
This Mytrip deal was found by Cheapflights users on 6/10. 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 6/269:42 amCHS - IAD
2 stops23h 41mMultiple Airlines
Mon 6/304:54 pmIAD - CHS
3 stops29h 35mMultiple Airlines
Deal found 6/10$283

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 June 12, 2025.
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

Charleston

Fly to

Dulles Intl

Route

Depart

Return

Price

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Mon 6/23

9:50 am-11:25 am

Nonstop1h 35m

Washington, D.C. Dulles Intl

Mon 9/22

8:20 am-10:07 am

Nonstop1h 47m

$186

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Tue 7/1

6:16 pm-11:14 pm

1 stop4h 58m

Washington, D.C. Dulles Intl

Sat 7/5

6:00 am-10:35 am

1 stop4h 35m

$199

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Fri 9/12

2:59 pm-6:51 pm

1 stop3h 52m

Washington, D.C. Dulles Intl

Sun 9/14

8:13 pm-12:05 am

1 stop3h 52m

$257

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Thu 6/26

9:42 am-9:23 am

2 stops23h 41m

Washington, D.C. Dulles Intl

Mon 6/30

4:54 pm-10:29 pm

3 stops29h 35m

$283

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Sat 7/12

10:00 am-11:35 am

Nonstop1h 35m

$115

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Thu 10/16

9:38 pm-2:15 pm

2 stops16h 37m

$120

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Thu 9/4

7:26 pm-3:53 pm

2 stops20h 27m

$121

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Wed 8/27

11:20 am-5:34 pm

1 stop6h 14m

$126

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Thu 10/23

5:33 am-8:42 am

1 stop3h 09m

$128

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Charleston to Washington, D.C. Dulles Intl Airport trip
Airports
CHS

For early flights, arrive early at CHS as security lines can be long during morning departures.

Read more about CHSby Ramsey Qubein
IAD

Use the Washington Metro Silver Line for a cost-effective and quick trip to downtown from IAD.

Read more about IADby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on IAD and CHS

Ramsey Qubein

Ramsey Qubein

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

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?

Use this chart to determine the optimal time to book a round-trip flight from Charleston to Dulles Intl. Price data was last updated on June 9, 2025.

The best time to book flights from Charleston to Washington, D.C. Dulles Intl Airport is 64 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, August is the cheapest month in which you can book a flight from Charleston to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Charleston to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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 June 12, 2025.

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 afternoon, which can drop the price by up to 76% versus a flight at noon.

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

Explore weekly flight availability from Charleston 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 June 12, 2025.

The most flights from CHS to IAD are scheduled on a Tuesday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 June 12, 2025.
See what other customers who have flown with Delta, United Airlines and Allegiant Air from Charleston to Washington, D.C. have to say. 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
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
725 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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 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. 3 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 13 outbound flights to Washington, D.C. Dulles Intl per day.

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

    United Airlines, at $186, was found to be the cheapest airline from Charleston to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include Delta and American Airlines. United Airlines is currently priced 39% below the average price you’ll pay for this route.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $115. Users have also found prices from $120 and $126 on Allegiant Air and Delta, respectively.

  • 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 Republic Airways (94%), ANA (92%) or United Airlines (92%) 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 $149. On average you can expect to pay $1,576. The most popular route, (Charleston - Washington, D.C. Dulles Intl), can usually be booked for $173.

  • 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, August is the cheapest month in which you can book a flight from Charleston to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Charleston to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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 Charleston?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Charleston to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Charlotte to Dulles Intl flights
Charlotte to Baltimore flights
Charlotte to Reagan-National flights
Columbia to Reagan-National flights
Columbia to Dulles Intl flights
Greenville to Reagan-National flights
Myrtle Beach to Baltimore flights
Charleston to Reagan-National flights
Columbia to Baltimore flights
Greenville to Dulles Intl flights
Charleston to Baltimore flights
Savannah to Dulles Intl flights
Savannah to Reagan-National flights
Myrtle Beach to Dulles Intl flights
Savannah to Baltimore flights
Myrtle Beach to Reagan-National flights
Greenville to Baltimore flights
Augusta to Dulles Intl flights
Hilton Head Island to Reagan-National flights
Augusta to Reagan-National flights
Hilton Head Island to Dulles Intl flights
Augusta to Baltimore flights
Hilton Head Island to Baltimore flights

Top 3 airlines flying from Charleston to Dulles Intl

Discover the top 3 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$189Average$308FlexibilityNo cancel feeOn-time69%
DeltaCheapest$208Average$273FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$259Average$268FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.