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$90+ Cheap flights from Seattle to Charleston (SEA - CHS)

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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CHS
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Charleston are usually found in January or September, booked 62 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from Seattle to Charleston

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) 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 September 16, 2025.

Round-trip from

$203
(American Airlines)

One-way from

$90
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$327

Good round-trip deal

$297 or less

Good one-way deal

$168 or less
From Seattle/Tacoma Intl to Charleston
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One-way flight from Seattle/Tacoma Intl to Charleston
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Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Charleston.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Charleston.
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Find flight deals from Seattle to Charleston

Cheapest flights from Seattle to Charleston
Explore the most affordable flight options available from Seattle to Charleston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. 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 10/2812:34 amSEA - CHS
1 stop9h 38mAmerican Airlines
Tue 11/46:10 amCHS - SEA
1 stop8h 30mAmerican Airlines
Deal found 9/15$203
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/46:28 amSEA - CHS
1 stop7h 08mAmerican Airlines
Sat 10/117:45 pmCHS - SEA
1 stop7h 42mAmerican Airlines
Deal found 9/14$214
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:19 pmSEA - CHS
1 stop7h 42mAmerican Airlines
Wed 10/83:30 pmCHS - SEA
1 stop9h 46mAmerican Airlines
Deal found 9/14$225
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Mon 11/311:42 amSEA - CHS
1 stop9h 15mAmerican Airlines
Fri 11/143:21 pmCHS - SEA
1 stop8h 55mAmerican Airlines
Deal found 9/13$227
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/77:37 pmSEA - CHS
2 stops11h 58mUnited Airlines
Sat 10/1111:31 amCHS - SEA
1 stop10h 18mUnited Airlines
Deal found 9/15$232
This Vliegwinkel deal was found by Cheapflights users on 9/14. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/49:56 amSEA - CHS
Nonstop5h 21mHawaiian Airlines
Sat 10/117:23 pmCHS - SEA
Nonstop5h 52mHawaiian Airlines
Deal found 9/14$233
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Sat 9/2711:05 pmSEA - CHS
1 stop8h 19mAmerican Airlines
Tue 9/306:27 amCHS - SEA
1 stop7h 52mAmerican Airlines
Deal found 9/15$239
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/45:00 amSEA - CHS
2 stops12h 08mUnited Airlines
Wed 10/86:02 amCHS - SEA
1 stop8h 29mUnited Airlines
Deal found 9/14$252
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/2412:30 pmSEA - CHS
1 stop7h 38mAmerican Airlines
Mon 10/274:30 pmCHS - SEA
1 stop9h 26mAmerican Airlines
Deal found 9/15$254
This Hawaiian Airlines deal was found by Cheapflights users on 9/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/310:07 amSEA - CHS
Nonstop5h 17mHawaiian Airlines
Fri 12/127:24 pmCHS - SEA
Nonstop6h 06mHawaiian Airlines
Deal found 9/15$257
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1910:54 pmSEA - CHS
1 stop8h 32mAmerican Airlines
Thu 10/232:36 pmCHS - SEA
1 stop9h 21mAmerican Airlines
Deal found 9/14$258

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle 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 September 16, 2025.
Use the filters below to find and compare flights from Seattle to Charleston that are best for you.

Fly from

Seattle

Fly to

Charleston

Route

Depart

Return

Price

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 10/29

6:20 am-5:33 pm

1 stop8h 13m

Charleston

Tue 11/4

10:00 am-6:00 pm

2 stops11h 00m

$232

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sat 10/4

5:00 am-8:08 pm

2 stops12h 08m

Charleston

Wed 10/8

6:02 am-11:31 am

1 stop8h 29m

$252

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sun 10/19

11:56 pm-10:49 am

1 stop7h 53m

Charleston

Thu 10/23

2:36 pm-8:57 pm

1 stop9h 21m

$258

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 11/12

5:40 am-6:40 pm

2 stops10h 00m

Charleston

Tue 11/18

6:00 am-1:25 pm

2 stops10h 25m

$264

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sat 11/1

5:00 am-2:50 pm

1 stop6h 50m

Charleston

Tue 11/11

7:00 am-9:50 pm

2 stops17h 50m

$265

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 3/3

9:15 am-5:31 pm

Nonstop5h 16m

Charleston

Wed 3/4

6:45 pm-9:42 pm

Nonstop5h 57m

$277

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 3/3

9:15 am-5:31 pm

Nonstop5h 16m

Charleston

Wed 3/4

6:45 pm-9:42 pm

Nonstop5h 57m

$277

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Mon 11/3

9:40 am-5:54 pm

Nonstop5h 14m

Charleston

Fri 11/14

6:59 pm-9:59 pm

Nonstop6h 00m

$277

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 10/22

9:56 am-6:17 pm

Nonstop5h 21m

Charleston

Sun 10/26

6:59 pm-9:59 pm

Nonstop6h 00m

$278

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 10/7

9:56 am-6:17 pm

Nonstop5h 21m

Charleston

Sat 10/11

7:23 pm-10:15 pm

Nonstop5h 52m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 21 results
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The best insider tips for Seattle to Charleston 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 Seattle to Charleston trip
Airports
SEA

Use SEA Spot Saver to book security screening appointments in advance, reducing wait times without needing TSA PreCheck or CLEAR.

Read more about SEAby Brandon Schultz
CHS

For a quick ride to downtown, rideshare services are more convenient and frequent than taxis at CHS.

Read more about CHSby Ramsey Qubein
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on 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 Seattle to Charleston

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

How far ahead should I book a flight from Seattle to Charleston?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Charleston. Price data was last updated on September 12, 2025.

The price you pay for your flight from Seattle to Charleston may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Seattle to Charleston (average of $217). Flying from Seattle 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.

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

Find hourly flight availability from Seattle to Charleston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

It’s typically best to fly out from Seattle to Charleston in the afternoon. Doing so could potentially save you 40% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Seattle to Charleston?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Charleston. Price data was last updated on September 14, 2025.

Travelers seeking maximum savings on their Seattle to Charleston flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 September 16, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and Hawaiian Airlines from Seattle to Charleston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,957 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,724 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,924 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

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

  • What airports do I use to fly from Seattle to Charleston?

    You will need to book a flight from Seattle/Tacoma Intl to Charleston if you want to fly from Seattle to Charleston. At least 6 different airlines have flights from Seattle/Tacoma Intl (SEA) to Charleston (CHS) on a regular basis. There are 2 flights to Charleston from the Seattle airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SEA to CHS to be around 5h 08m.

  • How popular is this Seattle to Charleston flight route?

    This flight path from Seattle/Tacoma Intl to Charleston was viewed by 4 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Seattle to Charleston?

    Departing from Seattle to Charleston will take you 7h 53m. The distance between Seattle and Charleston is about 2409 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, Delta ($169), United Airlines ($196), and American Airlines ($206) offers the cheapest pricing from Seattle to Charleston. You may be able to fly from Seattle to Charleston for 58% less than the average price by searching for these airlines.

  • What are the cheapest flights from Seattle to Charleston?

    Looking at all options, your cheapest flight can be booked for $138. While the most popular route (Seattle/Tacoma Intl - Charleston) can be booked for $227 on average, our data indicates $303 when flying from Seattle to Charleston.

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

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

  • How can I find direct flights from Seattle to Charleston?

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

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Charleston?

    Currently, August is the cheapest month in which you can book a flight from Seattle to Charleston (average of $217). Flying from Seattle 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

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Top 6 airlines flying from Seattle to Charleston

Discover the top 6 airlines that operate flights from Seattle 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$169Average$345FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$196Average$469FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$206Average$360FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$212Average$496FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$236Average$430FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$257Average$436FlexibilityNo cancel feeOn-time85%

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