$90 Cheap Flights from Charleston (CHS) to Washington (IAD)

View $90 flight on Sat, May 24, 2025Opens in a new window

Popular airlines from Charleston Intl. Airport (CHS) to Washington Dulles Intl. Airport (IAD)

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Find available prices by choosing your travel dates.

Cheap Flights from Charleston to Washington (CHS-IAD)

Prices were available within the past 7 days and start at $90 for one-way flights and $179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, May 25 - Wed, May 28
CHS
Charleston
IAD
Washington
$179 Roundtrip, found 2 days ago
$179
Roundtrip
found 2 days ago
Select United flight, departing Sun, May 25 from Charleston to Washington, returning Wed, May 28, priced at $179 found 2 days ago
United
Sat, May 24 - Sun, May 25
CHS
Charleston
IAD
Washington
$188 Roundtrip, found 5 days ago
$188
Roundtrip
found 5 days ago
Select United flight, departing Sat, May 24 from Charleston to Washington, returning Sun, May 25, priced at $188 found 5 days ago
United
Sat, May 31 - Mon, Aug 4
CHS
Charleston
IAD
Washington
$189 Roundtrip, just found
$189
Roundtrip
just found
Select United flight, departing Sat, May 31 from Charleston to Washington, returning Mon, Aug 4, priced at $189 just found
United
Sun, May 25 - Wed, May 28
CHS
Charleston
IAD
Washington
$191 Roundtrip, found 2 days ago
$191
Roundtrip
found 2 days ago
Select United flight, departing Sun, May 25 from Charleston to Washington, returning Wed, May 28, priced at $191 found 2 days ago
Delta
Thu, May 29 - Fri, May 30
CHS
Charleston
IAD
Washington
$192 Roundtrip, found 3 days ago
$192
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, May 29 from Charleston to Washington, returning Fri, May 30, priced at $192 found 3 days ago
United
Fri, Jun 6 - Mon, Jun 9
CHS
Charleston
IAD
Washington
$194 Roundtrip, found 2 hours ago
$194
Roundtrip
found 2 hours ago
Select United flight, departing Fri, Jun 6 from Charleston to Washington, returning Mon, Jun 9, priced at $194 found 2 hours ago
United
Fri, Jul 4 - Mon, Jul 7
CHS
Charleston
IAD
Washington
$194 Roundtrip, found 10 hours ago
$194
Roundtrip
found 10 hours ago
Select United flight, departing Fri, Jul 4 from Charleston to Washington, returning Mon, Jul 7, priced at $194 found 10 hours ago
United
Sat, May 24 - Tue, May 27
CHS
Charleston
IAD
Washington
$198 Roundtrip, found 5 days ago
$198
Roundtrip
found 5 days ago
Select United flight, departing Sat, May 24 from Charleston to Washington, returning Tue, May 27, priced at $198 found 5 days ago
Delta
Wed, May 28 - Fri, May 30
CHS
Charleston
IAD
Washington
$199 Roundtrip, found 10 hours ago
$199
Roundtrip
found 10 hours ago
Select Delta flight, departing Wed, May 28 from Charleston to Washington, returning Fri, May 30, priced at $199 found 10 hours ago
American Airlines
Wed, May 28 - Thu, May 29
CHS
Charleston
IAD
Washington
$228 Roundtrip, found 4 days ago
$228
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, May 28 from Charleston to Washington, returning Thu, May 29, priced at $228 found 4 days ago
Flights from Charleston (CHS) to Washington (IAD)
Origin airport
Charleston Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$179
Distance
443 mi

Charleston to Washington Flights

The cheapest times to fly from Charleston to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Charleston to Washington are during the month of May. You can find some of the cheapest flights from Charleston to Washington with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Charleston to Washington

Sunday is one of the best days to book for cheap flights from Charleston to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Charleston to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Charleston to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $90 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Charleston to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Charleston to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Charleston Intl. Airport (CHS) to Washington Dulles Intl. Airport (IAD) cost?
Cheap return fares from Charleston Intl. Airport (CHS) to Washington Dulles Intl. Airport (IAD) start at $160. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United and Spirit Airlines flight leaving CHS on May 13 2025 and touching down at IAD. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from CHS to IAD?
The cheapest flights from CHS to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Charleston Intl. Airport (CHS) to Washington Dulles Intl. Airport (IAD)?
If you’re departing from Charleston Intl. Airport (CHS), you can catch a nonstop flight to Washington Dulles Intl. Airport (IAD) with United Airlines.
What is the cheapest airline that flies from CHS to IAD?
Jet off from CHS to IAD with United. This airline currently offers the cheapest one-way ticket for this route, starting from $90. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from CHS on May 28 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Charleston Intl. Airport (CHS) to Washington Dulles Intl. Airport (IAD)?
When jetting out of Charleston Intl. Airport (CHS), you can pick from an average of 2 daily nonstop flights to Washington Dulles Intl. Airport (IAD).
What are the most popular departure times for flights from Charleston Intl. Airport (CHS) to Washington Dulles Intl. Airport (IAD)?
Flights between CHS and IAD are their busiest at 10 AM. If you’re after a more relaxed trip and potentially cheaper tickets, look for a time outside the usual busy windows.
What day of the week has the most flights from CHS to IAD?
If you travel on a Friday, you’ll get the biggest range of options for flights from Charleston Intl. Airport (CHS) to Washington Dulles Intl. Airport (IAD).
What is the earliest flight from Charleston Intl. Airport (CHS) to Washington Dulles Intl. Airport (IAD)?
Charleston Intl. Airport (CHS)’s earliest flight to Washington Dulles Intl. Airport (IAD) departs at approximately 10:05AM UTC-5. With a total flight time of 1h 38m, you’ll touch down at around 11:43AM UTC-5.
How long does it take to fly from Charleston Intl. Airport (CHS) to Washington Dulles Intl. Airport (IAD)?
Flights from CHS to IAD have an average travel time of 1 hour and 37 minutes. The distance between the two airports is 440 mi.
What is the best time to fly from Charleston Intl. Airport (CHS) to Washington Dulles Intl. Airport (IAD)?
To avoid possible delays on the Charleston Intl. Airport (CHS) to Washington Dulles Intl. Airport (IAD) route, aim to fly before 3 PM. Departures after this time have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Washington from Charleston Intl. Airport (CHS)?
Catch a direct flight from Charleston Intl. Airport (CHS) to Washington and land at any one of these hubs:

  • Ronald Reagan Washington National Airport (DCA)
  • Washington Dulles Intl. Airport (IAD)
  • Baltimore Washington Intl. Thurgood Marshall Airport (BWI)

Is it cheaper to buy a plane ticket from Charleston Intl. Airport (CHS) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your flight from CHS to IAD shortly before your trip is usually more expensive. But if you’re flexible with your schedule, you could grab a cheap last-minute fare.
Is it cheaper to book a CHS to IAD flight and hotel package?
Securing a CHS to IAD flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our wide range of accommodations and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Charleston Intl. Airport (CHS) to Washington Dulles Intl. Airport (IAD)?
Usually, it’s possible to reschedule or cancel your CHS to IAD flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline’s policies in your itinerary to see what changes are possible and if any costs are involved. You’ll also find further details on our Customer Service portal.

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