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

Cheapflights users have booked flights from Charleston to Washington, D.C. round-trip from $80. Other airlines that can offer you cheap pricing are Southwest, from $153, and American Airlines, from $159. Spirit Airlines is 68% cheaper than the average price of flights available within the next 90 days to this destination.

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

To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $38. Southwest flights start at $68 while deals on American Airlines start at $80 one-way.

In terms of precipitation, rainfall in Washington, D.C. 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. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., 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).

What are the most popular routes from Charleston to Washington, D.C.?

The most popular flight routes from Charleston to Washington, D.C. are Charleston - Washington, D.C. Dulles Intl, Charleston - Baltimore/Washington and Charleston - Washington, D.C. Reagan-National.

What are the cheapest flights from Charleston to Washington, D.C.?

Looking for the cheapest flight from Charleston to Washington, D.C.? While on average our users pay $1,469, our data indicates the cheapest price to be $159. The most popular route (Charleston - Washington, D.C. Dulles Intl), is priced around $179.

What are the most reliable airlines from Charleston to Washington, D.C.?

Before booking your flight to Washington, D.C. from Charleston, check out the most reliable airlines to get you to your destination on time: Republic Airways (94%), Austrian Airlines (93%), Brussels Airlines( 88%).

What are the most popular airlines that fly from Charleston to Washington, D.C.?

American Airlines, Delta and United Airlines are the most popular airlines when flying from Charleston to Washington, D.C..

What is the cheapest day to fly round-trip from Charleston to Washington, D.C.?

Users have found that leaving on a Thursday can be a cost-effective option. It’s possible to save up to 103% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Charleston to Washington, D.C.?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 59 days in advance, which can save you up to 107% on flights from Charleston to Washington, D.C. compared to booking the week you need them. Waiting 59 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $288. For sooner than that we have options available in the next 3 days from $359.

What is the cheapest month to fly from Charleston to Washington, D.C.?

May is one of the best times of the year to fly to Washington, D.C. from Charleston. Prices for May average $252 per person but you can even find prices for as low as $179. The most expensive prices can be found in the month of December. Opting for a May flight can save you 25% on your journey compared to booking in December

What airport do you fly from for flights from Charleston to Washington, D.C.?

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.. 5 airlines have flights from Charleston to Washington, D.C. on a regular basis. Booking flights from Charleston to Washington, D.C. should not be difficult; the airport handles an average of 15 outbound flights to Washington, D.C. per day.

Can I find deals for flights from Charleston to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on Charleston to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Charleston to Washington, D.C.?

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

Can I find deals for business class flights from Charleston to Washington, D.C.?

Yes. Cheapflights offers flight deals from Charleston to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$38+ Flights from Charleston to Washington, D.C.

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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

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Cheapflights Tip: The best prices from Charleston to Washington, D.C. are usually found in May or July, booked 58 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from Charleston to Washington, D.C.

Round-trip from	$80 (Priceline)
One-way from	$38 (FlightHub)
Popular in	December
Cheapest in	May
Average price	$203
Good round-trip deal	$189 or less
Good one-way deal	$119 or less

From Charleston to Washington, D.C. (WAS)

Search Deals

One-way flight from Charleston to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($32 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($6 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 Charleston to Washington, D.C. (WAS).

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Price to beat on a one-way flight from Charleston to Washington, D.C. (WAS).

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Find flight deals from Charleston to Washington, D.C.

Cheapest flights from Charleston to Washington, D.C.
Explore the most affordable flight options available from Charleston to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2025.

Mon 8/43:40 pmCHS - BWI

Nonstop1h 31mSpirit Airlines

Mon 8/117:00 amBWI - CHS

Nonstop1h 43mSpirit Airlines

Deal found 7/9

$80

Thu 10/237:15 pmCHS - BWI

Nonstop1h 30mSouthwest

Mon 10/2711:50 amBWI - CHS

Nonstop1h 40mSouthwest

Deal found 7/9

$144

Fri 8/225:33 pmCHS - BWI

1 stop4h 22mAmerican Airlines

Sun 8/245:02 amBWI - CHS

1 stop3h 14mAmerican Airlines

Deal found 7/8

$159

Tue 8/197:10 amCHS - BWI

1 stop4h 28mDelta

Sun 8/248:00 amBWI - CHS

1 stop3h 50mDelta

Deal found 7/10

$177

Fri 8/2910:18 amCHS - IAD

Nonstop1h 32mUnited Airlines

Sun 8/3112:40 pmIAD - CHS

Nonstop1h 53mUnited Airlines

Deal found 7/10

$184

Thu 8/146:10 amCHS - DCA

1 stop4h 50mSouthwest

Mon 8/1812:00 pmDCA - CHS

2 stops9h 15mSouthwest

Deal found 7/10

$185

Fri 8/111:06 amCHS - DCA

Nonstop1h 39mAmerican Airlines

Sun 8/35:07 pmDCA - CHS

Nonstop1h 51mAmerican Airlines

Deal found 7/10

$189

Sat 8/3011:20 amCHS - IAD

1 stop6h 14mDelta

Sun 8/316:00 amIAD - CHS

1 stop4h 35mDelta

Deal found 7/10

$199

Thu 8/149:30 amCHS - DCA

1 stop6h 42mJetBlue

Mon 8/181:44 pmDCA - CHS

1 stop6h 06mJetBlue

Deal found 7/10

$203

Thu 8/75:14 pmCHS - DCA

1 stop4h 30mDelta

Thu 8/146:00 amDCA - CHS

1 stop4h 38mDelta

Deal found 7/10

$209

Tue 8/55:00 amCHS - IAD

1 stop3h 33mAmerican Airlines

Wed 8/67:44 amIAD - CHS

1 stop3h 47mAmerican Airlines

Deal found 7/10

$251

Best flights from Charleston to Washington, D.C.
Discover carefully curated flight deals from Charleston to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 11, 2025.

Mon 8/43:40 pmCHS - BWI

Nonstop1h 31mSpirit Airlines

Mon 8/117:00 amBWI - CHS

Nonstop1h 43mSpirit Airlines

Deal found 7/9

$80

Wed 9/246:00 pmCHS - BWI

Nonstop1h 35mSouthwest

Sat 9/273:00 pmBWI - CHS

Nonstop1h 40mSouthwest

Deal found 7/10

$153

Fri 8/225:33 pmCHS - BWI

1 stop4h 22mAmerican Airlines

Sun 8/245:02 amBWI - CHS

1 stop3h 14mAmerican Airlines

Deal found 7/8

$159

Tue 8/197:10 amCHS - BWI

1 stop4h 28mDelta

Sat 8/236:25 pmBWI - CHS

1 stop5h 26mDelta

Deal found 7/10

$177

Fri 8/2910:18 amCHS - IAD

Nonstop1h 32mUnited Airlines

Sun 8/3112:40 pmIAD - CHS

Nonstop1h 53mUnited Airlines

Deal found 7/10

$184

Thu 8/149:30 amCHS - DCA

1 stop6h 42mJetBlue

Mon 8/181:44 pmDCA - CHS

1 stop6h 06mJetBlue

Deal found 7/10

$203

Thu 8/146:10 amCHS - DCA

1 stop4h 50mSouthwest

Mon 8/1812:00 pmDCA - CHS

2 stops9h 15mSouthwest

Deal found 7/10

$185

Fri 9/124:44 pmCHS - DCA

1 stop6h 58mDelta

Wed 9/176:05 amDCA - CHS

1 stop6h 02mDelta

Deal found 7/8

$188

Thu 8/144:25 pmCHS - DCA

Nonstop1h 44mAmerican Airlines

Mon 8/188:24 amDCA - CHS

Nonstop1h 55mAmerican Airlines

Deal found 7/9

$189

Fri 9/511:20 amCHS - IAD

1 stop6h 14mDelta

Mon 9/85:25 pmIAD - CHS

1 stop6h 26mDelta

Deal found 7/8

$188

Fri 8/227:38 pmCHS - IAD

1 stop3h 18mAmerican Airlines

Sat 8/238:19 pmIAD - CHS

1 stop3h 38mAmerican Airlines

Deal found 7/8

$260

Last-minute flights from Charleston to Washington, D.C.
Discover last-minute flight deals from Charleston to Washington, D.C.. Data last updated July 11, 2025 and is based on user searches.

Tue 7/156:40 pmCHS - DCA

1 stop4h 19mDelta

Mon 8/46:05 amDCA - CHS

1 stop4h 33mDelta

Deal found 7/10

$244

Tue 7/155:15 amCHS - IAD

1 stop4h 04mDelta

Sun 8/36:00 amIAD - CHS

1 stop3h 37mDelta

Deal found 7/10

$244

Tue 7/158:38 pmCHS - IAD

1 stop3h 20mAmerican Airlines

Wed 7/239:03 amIAD - CHS

1 stop3h 53mAmerican Airlines

Deal found 7/10

$274

Thu 7/176:00 amCHS - DCA

Nonstop1h 30mAmerican Airlines

Sun 7/208:45 amDCA - CHS

Nonstop1h 51mAmerican Airlines

Deal found 7/8

$249

Thu 7/1710:00 amCHS - IAD

Nonstop1h 35mUnited Airlines

Sat 7/198:25 amIAD - CHS

Nonstop1h 49mUnited Airlines

Deal found 7/10

$283

Thu 7/172:50 pmCHS - BWI

1 stop8h 59mMultiple Airlines

Fri 7/187:00 amBWI - CHS

Nonstop1h 43mMultiple Airlines

Deal found 7/8

$340

Thu 7/175:00 pmCHS - DCA

1 stop5h 20mSouthwest

Sat 7/198:25 amDCA - CHS

2 stops11h 20mSouthwest

Deal found 7/8

$354

Thu 7/177:05 amCHS - BWI

Nonstop1h 30mSouthwest

Sun 7/204:30 pmBWI - CHS

1 stop7h 25mSouthwest

Deal found 7/8

$463

Fri 7/183:40 pmCHS - BWI

Nonstop1h 31mSpirit Airlines

Fri 7/257:00 amBWI - CHS

Nonstop1h 43mSpirit Airlines

Deal found 7/10

$147

Sat 7/198:56 amCHS - IAD

2 stops23h 39mMultiple Airlines

Sun 7/2012:55 pmIAD - CHS

2 stops9h 55mMultiple Airlines

Deal found 7/10

$461

Sun 7/208:30 amCHS - BWI

1 stop4h 17mDelta

Fri 7/2511:51 amBWI - CHS

1 stop4h 18mDelta

Deal found 7/10

$372

Sun 7/206:05 amCHS - DCA

1 stop5h 54mUnited Airlines

Wed 7/233:30 pmDCA - CHS

1 stop6h 03mUnited Airlines

Deal found 7/10

$560

One-way flights from Charleston to Washington, D.C.
Search for one-way flight options from Charleston to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated July 11, 2025.

Mon 8/113:40 pmCHS - BWI

Nonstop1h 31mSpirit Airlines

Deal found 7/9

$38

Mon 8/187:05 amCHS - BWI

Nonstop1h 30mSouthwest

Deal found 7/9

$68

Mon 9/82:59 pmCHS - BWI

1 stop4h 21mAmerican Airlines

Deal found 7/9

$80

Thu 9/188:25 pmCHS - DCA

Nonstop1h 35mAmerican Airlines

Deal found 7/10

$89

Thu 8/75:15 amCHS - BWI

1 stop4h 08mDelta

Deal found 7/10

$89

Sat 8/307:45 pmCHS - IAD

Nonstop1h 40mUnited Airlines

Deal found 7/9

$90

Sat 8/302:55 pmCHS - IAD

1 stop3h 54mDelta

Deal found 7/9

$100

Fri 8/295:30 amCHS - DCA

1 stop6h 40mSouthwest

Deal found 7/9

$102

Mon 9/88:00 amCHS - DCA

1 stop4h 56mJetBlue

Deal found 7/10

$112

Sat 8/95:15 amCHS - DCA

1 stop3h 54mDelta

Deal found 7/10

$126

Thu 9/48:10 pmCHS - IAD

2 stops19h 43mMultiple Airlines

Deal found 7/9

$129

Thu 10/29:38 pmCHS - IAD

2 stops16h 36mAllegiant Air

Deal found 7/10

$142

Cheapflights Fare Finder

Use the filters below to find and compare flights from Charleston to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

CharlestonBaltimore

CHS - BWI

CHSBWI

Charleston

Mon 8/4

3:40 pm-5:11 pm

Nonstop1h 31m

Baltimore/Washington

Mon 8/11

7:00 am-8:43 am

Nonstop1h 43m

$80

CharlestonBaltimore

CHS - BWI

CHSBWI

Charleston

Thu 10/23

7:15 pm-8:45 pm

Nonstop1h 30m

Baltimore/Washington

Mon 10/27

11:50 am-1:30 pm

Nonstop1h 40m

$144

CharlestonBaltimore

CHS - BWI

CHSBWI

Charleston

Fri 8/22

5:33 pm-9:55 pm

1 stop4h 22m

Baltimore/Washington

Sun 8/24

5:02 am-8:16 am

1 stop3h 14m

$159

CharlestonBaltimore

CHS - BWI

CHSBWI

Charleston

Tue 8/19

7:10 am-11:38 am

1 stop4h 28m

Baltimore/Washington

Sat 8/23

6:25 pm-11:51 pm

1 stop5h 26m

$177

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Fri 8/29

10:18 am-11:50 am

Nonstop1h 32m

Washington, D.C. Dulles Intl

Sun 8/31

12:40 pm-2:33 pm

Nonstop1h 53m

$184

CharlestonWashington, D.C.

CHS - DCA

CHSDCA

Charleston

Thu 8/14

6:10 am-11:00 am

1 stop4h 50m

Washington, D.C. Reagan-National

Mon 8/18

12:00 pm-9:15 pm

2 stops9h 15m

$185

CharlestonWashington, D.C.

CHS - DCA

CHSDCA

Charleston

Fri 8/1

11:06 am-12:45 pm

Nonstop1h 39m

Washington, D.C. Reagan-National

Sun 8/3

5:07 pm-6:58 pm

Nonstop1h 51m

$189

CharlestonWashington, D.C.

CHS - IAD

CHSIAD

Charleston

Sat 8/30

11:20 am-5:34 pm

1 stop6h 14m

Washington, D.C. Dulles Intl

Sun 8/31

6:00 am-10:35 am

1 stop4h 35m

$199

CharlestonWashington, D.C.

CHS - DCA

CHSDCA

Charleston

Thu 8/14

9:30 am-4:12 pm

1 stop6h 42m

Washington, D.C. Reagan-National

Mon 8/18

1:44 pm-7:50 pm

1 stop6h 06m

$203

CharlestonWashington, D.C.

CHS - DCA

CHSDCA

Charleston

Thu 8/7

5:14 pm-9:44 pm

1 stop4h 30m

Washington, D.C. Reagan-National

Thu 8/14

6:00 am-10:38 am

1 stop4h 38m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/9

Showing 1-10 of 25 results

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

Cheapflights partnered with top experts to bring you the best recommendations for your Charleston to Washington, D.C. trip

Airports

CHS

For early flights, arrive early as security lines can be long when many gates have simultaneous departures.

IAD

The Washington Metro Silver Line reaches IAD in under 40 minutes, offering a cost-effective city connection.

Our travel experts

Ramsey Qubein

Expert on IAD and CHS

Best time to book a flight from Charleston to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

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

To ensure you get the cheapest price possible for a flight from Charleston to Washington, D.C., you should look to book at least 58 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Charleston to Washington, D.C. (average of $309). Flying from Charleston to Washington, D.C. in April is currently the most expensive (average of $337). 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 WAS?

It’s optimal to fly from Charleston to Washington, D.C. in the afternoon. By choosing this option you can save up to 63% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Charleston to Washington, D.C.?

Travelers seeking maximum savings on their Charleston to Washington, D.C. flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Charleston to Washington, D.C.

The most flights from CHS to WAS are scheduled on a Thursday (18 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

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

Reviews of airlines servicing Washington, D.C.

Read through reviews of airlines operating flights from Charleston to Washington, D.C., such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,249 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Southwest

8.0

Very good

4,249 reviews

Southwest

8.0

Very good

4,249 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Delta

8.0

Very good

7,951 reviews

Southwest

8.0

Very good

4,249 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

United Airlines

7.4

Good

8,846 reviews

Southwest

8.0

Very good

4,249 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

JetBlue

7.3

Good

2,913 reviews

Southwest

8.0

Very good

4,249 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,249 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

What airport do you fly from for flights from Charleston to Washington, D.C.?
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.. 5 airlines have flights from Charleston to Washington, D.C. on a regular basis. Booking flights from Charleston to Washington, D.C. should not be difficult; the airport handles an average of 15 outbound flights to Washington, D.C. per day.
What are the cheapest airlines flying from Charleston to Washington, D.C. round-trip?
Cheapflights users have booked flights from Charleston to Washington, D.C. round-trip from $80. Other airlines that can offer you cheap pricing are Southwest, from $153, and American Airlines, from $159. Spirit Airlines is 68% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Charleston to Washington, D.C. one-way?
To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $38. Southwest flights start at $68 while deals on American Airlines start at $80 one-way.
What are the most popular routes from Charleston to Washington, D.C.?
The most popular flight routes from Charleston to Washington, D.C. are Charleston - Washington, D.C. Dulles Intl, Charleston - Baltimore/Washington and Charleston - Washington, D.C. Reagan-National.
What are the most reliable airlines from Charleston to Washington, D.C.?
Before booking your flight to Washington, D.C. from Charleston, check out the most reliable airlines to get you to your destination on time: Republic Airways (94%), Austrian Airlines (93%), Brussels Airlines( 88%).
What are the cheapest flights from Charleston to Washington, D.C.?
Looking for the cheapest flight from Charleston to Washington, D.C.? While on average our users pay $1,469, our data indicates the cheapest price to be $159. The most popular route (Charleston - Washington, D.C. Dulles Intl), is priced around $179.
Can I find deals for flights from Charleston to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Charleston to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Charleston to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Charleston to Washington, D.C..
Can I find deals for business class flights from Charleston to Washington, D.C.?
Yes. Cheapflights offers flight deals from Charleston to Washington, D.C. 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.?
Currently, August is the cheapest month in which you can book a flight from Charleston to Washington, D.C. (average of $309). Flying from Charleston to Washington, D.C. in April is currently the most expensive (average of $337). 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

Woodbridge

Arlington

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Tysons

Silver Spring

Fredericksburg

Gaithersburg

Easton

Fairfax

Towson

Linthicum Heights

Waldorf

Laurel

Falls Church

Rockville

Springfield

National Harbor

Manassas

Dundalk

Bowie

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Charleston to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$98	Average$158	FlexibilityNo cancel fee	On-time65%
American Airlines	Cheapest$158	Average$308	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$176	Average$269	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$189	Average$304	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$198	Average$320	FlexibilityNo cancel fee	On-time63%

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$38+ Cheap flights from Charleston (CHS) to Washington, D.C. (WAS)

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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Charleston to Washington, D.C. with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Charleston to Washington, D.C. are usually found in May or July, booked 58 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from Charleston to Washington, D.C.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Charleston to Washington, D.C.

Cheapest flights from Charleston to Washington, D.C.Explore the most affordable flight options available from Charleston to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2025.

Explore the most affordable flight options available from Charleston to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Charleston to Washington, D.C. that are best for you.

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

Cheapflights partnered with top experts to bring you the best recommendations for your Charleston to Washington, D.C. trip

Airports

CHS

IAD

Our travel experts

Best time to book a flight from Charleston to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Charleston with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Charleston to Washington, D.C.

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

Use this chart to determine the optimal time to book a round-trip flight from Charleston to Washington, D.C.. Price data was last updated on June 27, 2025.

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

What is the cheapest time of day to fly from CHS to WAS?

Find hourly flight availability from Charleston to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 11, 2025.

What is the cheapest day to fly from Charleston to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Charleston to Washington, D.C.. Price data was last updated on July 6, 2025.

Weekly flight availability from Charleston to Washington, D.C.

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

Reviews of airlines servicing Washington, D.C.

Read through reviews of airlines operating flights from Charleston to Washington, D.C., such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

What are the most popular routes from Charleston to Washington, D.C.?

What are the most reliable airlines from Charleston to Washington, D.C.?

What are the cheapest flights from Charleston to Washington, D.C.?

Can I find deals for flights from Charleston to Washington, D.C. that include hotel bookings?

How can I find direct flights from Charleston to Washington, D.C.?

Can I find deals for business class flights from Charleston to Washington, D.C.?

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

Traveling to a place near Charleston?

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Alternative routes for Charleston to Washington, D.C.

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Top 5 airlines flying from Charleston to Washington, D.C.

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Cheapest flights from Charleston to Washington, D.C.
Explore the most affordable flight options available from Charleston to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2025.