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$329+ Cheap flights from Rapid City to Charleston (RAP - CHS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — CHS
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Rapid City to Charleston

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to Charleston (CHS). 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 August 14, 2025.

Round-trip from

$329
(United Airlines)

Popular in

December

Cheapest in

July

Average price

$399
From Rapid City to Charleston
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($108 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Rapid City to Charleston

Cheapest flights from Rapid City to Charleston
Explore the most affordable flight options available from Rapid City to Charleston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/275:30 amRAP - CHS
2 stops8h 56mUnited Airlines
Sun 8/316:45 amCHS - RAP
2 stops11h 17mUnited Airlines
Deal found 8/12$329
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Tue 9/98:32 amRAP - CHS
2 stops12h 58mUnited Airlines
Tue 9/1611:45 amCHS - RAP
2 stops9h 05mUnited Airlines
Deal found 8/13$359
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Fri 9/266:00 amRAP - CHS
1 stop6h 04mAmerican Airlines
Sun 9/285:00 amCHS - RAP
1 stop8h 22mAmerican Airlines
Deal found 8/13$429
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Tue 9/91:12 pmRAP - CHS
1 stop20h 18mAmerican Airlines
Tue 9/162:54 pmCHS - RAP
1 stop7h 59mAmerican Airlines
Deal found 8/13$432
This United Airlines deal was found by Cheapflights users on 8/13. 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 8/297:00 amRAP - CHS
1 stop6h 10mUnited Airlines
Tue 9/24:12 pmCHS - RAP
1 stop7h 47mUnited Airlines
Deal found 8/13$491
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Wed 8/275:39 amRAP - CHS
1 stop6h 11mAmerican Airlines
Sun 8/316:00 amCHS - RAP
1 stop6h 53mAmerican Airlines
Deal found 8/12$550
This United Airlines deal was found by Cheapflights users on 8/14. 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 10/117:00 amRAP - CHS
2 stops14h 42mUnited Airlines
Tue 10/146:02 amCHS - RAP
1 stop6h 11mUnited Airlines
Deal found 8/14$567
This United Airlines deal was found by Cheapflights users on 8/14. 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 10/101:44 pmRAP - CHS
1 stop28h 24mUnited Airlines
Mon 10/136:02 amCHS - RAP
1 stop6h 11mUnited Airlines
Deal found 8/14$571

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rapid City to Charleston 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 August 14, 2025.
Use the filters below to find and compare flights from Rapid City to Charleston that are best for you.

Fly from

Rapid City

Fly to

Charleston

Route

Depart

Return

Price

Rapid CityCharleston

RAP - CHS

RAPCHS

Rapid City

Wed 8/27

5:30 am-4:26 pm

2 stops8h 56m

Charleston

Sun 8/31

6:45 am-4:02 pm

2 stops11h 17m

$329

Rapid CityCharleston

RAP - CHS

RAPCHS

Rapid City

Tue 9/9

8:32 am-11:30 pm

2 stops12h 58m

Charleston

Tue 9/16

11:45 am-6:50 pm

2 stops9h 05m

$359

Rapid CityCharleston

RAP - CHS

RAPCHS

Rapid City

Fri 9/26

6:00 am-2:04 pm

1 stop6h 04m

Charleston

Sun 9/28

5:00 am-11:22 am

1 stop8h 22m

$429

Rapid CityCharleston

RAP - CHS

RAPCHS

Rapid City

Tue 9/9

1:12 pm-11:30 am

1 stop20h 18m

Charleston

Tue 9/16

2:54 pm-8:53 pm

1 stop7h 59m

$432

Rapid CityCharleston

RAP - CHS

RAPCHS

Rapid City

Fri 8/29

7:00 am-3:10 pm

1 stop6h 10m

Charleston

Tue 9/2

4:12 pm-9:59 pm

1 stop7h 47m

$491

Rapid CityCharleston

RAP - CHS

RAPCHS

Rapid City

Wed 8/27

5:39 am-1:50 pm

1 stop6h 11m

Charleston

Sun 8/31

6:00 am-10:53 am

1 stop6h 53m

$550

Rapid CityCharleston

RAP - CHS

RAPCHS

Rapid City

Sat 10/11

7:00 am-11:42 pm

2 stops14h 42m

Charleston

Tue 10/14

6:02 am-10:13 am

1 stop6h 11m

$567

Rapid CityCharleston

RAP - CHS

RAPCHS

Rapid City

Fri 10/10

1:44 pm-8:08 pm

1 stop28h 24m

Charleston

Mon 10/13

6:02 am-10:13 am

1 stop6h 11m

$571

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Best time to book a flight from Rapid City to Charleston

Have a flexible travel schedule? Discover the best time to fly to Charleston from Rapid City 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 Rapid City to Charleston

What is the cheapest month to book a flight from Rapid City to Charleston?

Currently, August is the cheapest month in which you can book a flight from Rapid City to Charleston (average of $217). Flying from Rapid City to Charleston in March is currently the most expensive (average of $335). 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.

How much does it cost to fly round-trip from Rapid City to Charleston?

Reviews of airlines servicing Charleston

Get insights into the airlines that provide service to Charleston. 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 Charleston. Reviews last updated August 14, 2025.
See what other customers who have flown with United Airlines and American Airlines from Rapid City to Charleston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Rapid City to Charleston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Rapid City to Charleston round-trip?

    Currently priced at $285, American Airlines will fly you from Rapid City to Charleston and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $318. American Airlines is priced at 46% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Rapid City to Charleston that include hotel bookings?

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

  • How can I find direct flights from Rapid City to Charleston?

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

  • Can I find deals for business class flights from Rapid City to Charleston?

    Yes. Cheapflights offers flight deals from Rapid City to Charleston 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 Rapid City to Charleston?

    Currently, August is the cheapest month in which you can book a flight from Rapid City to Charleston (average of $217). Flying from Rapid City to Charleston in March is currently the most expensive (average of $335). 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
North Charleston
Summerville
Walterboro
Mount Pleasant
Isle of Palms
Santee
Edisto Beach

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.

Top 2 airlines flying from Rapid City to Charleston

Discover the top 2 airlines that operate flights from Rapid City to Charleston. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$285Average$453FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$499FlexibilityNo cancel feeOn-time69%

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