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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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — IAD
Jun 28 — Jul 51
Sat 6/28
Sat 7/5
1 adult, Economy
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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 23, 2025.

Round-trip from

$189
(United Airlines)

One-way from

$115
(United Airlines)

Popular in

November

Cheapest in

May

Average price

$373

Good round-trip deal

$634 or less

Good one-way deal

$224 or less
From Charleston to Washington, D.C. Dulles Intl
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One-way flight from Charleston to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 7% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Charleston to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Charleston to Washington, D.C. Dulles Intl.
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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 23, 2025.

This United Airlines deal was found by Cheapflights users on 6/23. 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 7/177:40 pmCHS - IAD
Nonstop1h 45mUnited Airlines
Sun 7/208:25 amIAD - CHS
Nonstop1h 49mUnited Airlines
Deal found 6/23$189
This Delta deal was found by Cheapflights users on 6/23. 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
Sat 7/57:10 amIAD - CHS
1 stop4h 43mDelta
Deal found 6/23$199
This American Airlines deal was found by Cheapflights users on 6/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/308:38 pmCHS - IAD
1 stop3h 20mAmerican Airlines
Tue 8/56:35 amIAD - CHS
1 stop3h 49mAmerican Airlines
Deal found 6/22$251
This Mytrip deal was found by Cheapflights users on 6/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/198:56 amCHS - IAD
2 stops23h 39mMultiple Airlines
Sat 7/269:43 pmIAD - CHS
3 stops36h 10mMultiple Airlines
Deal found 6/20$313

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 23, 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

Thu 7/17

7:40 pm-9:25 pm

Nonstop1h 45m

Washington, D.C. Dulles Intl

Sun 7/20

8:25 am-10:14 am

Nonstop1h 49m

$189

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Thu 7/17

6:23 pm-10:16 pm

1 stop3h 53m

Washington, D.C. Dulles Intl

Sun 7/20

6:00 am-9:37 am

1 stop3h 37m

$209

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Wed 7/30

8:38 pm-11:58 pm

1 stop3h 20m

Washington, D.C. Dulles Intl

Tue 8/5

6:35 am-10:24 am

1 stop3h 49m

$251

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Sat 7/19

8:56 am-8:35 am

2 stops23h 39m

Washington, D.C. Dulles Intl

Sat 7/26

9:43 pm-9:53 am

3 stops36h 10m

$313

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Tue 7/22

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

6:38 pm-10:55 pm

1 stop4h 17m

$126

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Sun 11/2

8:47 pm-11:57 pm

1 stop3h 10m

$161

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Sat 9/13

6:40 pm-7:32 am

1 stop12h 52m

$275

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/21

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 20, 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 $346). 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 23, 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 23, 2025.

The most flights from CHS to IAD are scheduled on a Monday (15 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (4 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 23, 2025.
See what other customers who have flown with Alaska Airlines, Delta and United Airlines 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,966 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,831 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
715 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 12 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 $189, 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 38% 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 $126 and $134 on Delta and Allegiant Air, 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 (96%), ANA (93%) or United 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 $159. On average you can expect to pay $983. The most popular route, (Charleston - Washington, D.C. Dulles Intl), can usually be booked for $163.

  • 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 $346). 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
Woodbridge
Alexandria
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
Gaithersburg
Fairfax
Easton
Towson
Falls Church
Rockville
Springfield
National Harbor
Manassas
Dundalk
Waldorf
Bowie
Hanover

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Alternative routes for Charleston to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Hilton Head Island to Reagan-National flights
Hilton Head Island to Dulles Intl flights
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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 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$189Average$307FlexibilityNo cancel feeOn-time69%
DeltaCheapest$208Average$273FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$259Average$268FlexibilityNo cancel feeOn-time71%

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