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$80+ 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CHS
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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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”

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3. Compare prices and book

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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

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 October 23, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/310:07 amSEA - CHS
Nonstop5h 17mAlaska Airlines
Fri 12/127:24 pmCHS - SEA
Nonstop6h 06mAlaska Airlines
Deal found 10/22$237
This United Airlines deal was found by Cheapflights users on 10/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1910:53 amSEA - CHS
1 stop7h 15mUnited Airlines
Wed 11/264:38 pmCHS - SEA
1 stop8h 50mUnited Airlines
Deal found 10/22$238
This American Airlines deal was found by Cheapflights users on 10/21. 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 10/21$239
This United Airlines deal was found by Cheapflights users on 10/21. 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 12/211:59 pmSEA - CHS
2 stops10h 56mUnited Airlines
Tue 12/94:11 pmCHS - SEA
1 stop8h 35mUnited Airlines
Deal found 10/21$242
This United Airlines deal was found by Cheapflights users on 10/23. 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.
Sun 11/3011:17 pmSEA - CHS
1 stop8h 12mUnited Airlines
Sat 12/66:00 amCHS - SEA
2 stops13h 07mUnited Airlines
Deal found 10/23$243
This American Airlines deal was found by Cheapflights users on 10/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:24 amSEA - CHS
1 stop9h 56mAmerican Airlines
Wed 11/56:10 amCHS - SEA
1 stop8h 30mAmerican Airlines
Deal found 10/23$244
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/199:40 amSEA - CHS
Nonstop5h 14mAlaska Airlines
Wed 11/266:19 pmCHS - SEA
Nonstop6h 09mAlaska Airlines
Deal found 10/22$247
This Southwest deal was found by Cheapflights users on 10/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:35 amSEA - CHS
1 stop6h 35mSouthwest
Wed 11/57:00 amCHS - SEA
2 stops17h 50mSouthwest
Deal found 10/23$255
This American Airlines deal was found by Cheapflights users on 10/21. 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 12/212:41 amSEA - CHS
1 stop10h 41mAmerican Airlines
Fri 12/123:21 pmCHS - SEA
1 stop8h 52mAmerican Airlines
Deal found 10/21$256
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/149:40 amSEA - CHS
Nonstop5h 14mAlaska Airlines
Thu 11/206:59 pmCHS - SEA
Nonstop6h 00mAlaska Airlines
Deal found 10/22$257
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/191:35 pmSEA - CHS
1 stop7h 22mAmerican Airlines
Wed 11/267:10 pmCHS - SEA
1 stop8h 48mAmerican Airlines
Deal found 10/22$258
This Southwest deal was found by Cheapflights users on 10/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/297:10 amSEA - CHS
2 stops10h 10mSouthwest
Wed 11/57:00 amCHS - SEA
2 stops14h 20mSouthwest
Deal found 10/21$260

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 October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$237
(Alaska Airlines)

One-way from

$80
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$337

Good round-trip deal

$317 or less

Good one-way deal

$147 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Charleston flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Charleston flights.
Search Deals
From Seattle/Tacoma Intl to Charleston
Search Deals
One-way flight from Seattle/Tacoma Intl to Charleston
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Charleston.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Charleston.
Search Deals

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 October 23, 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 11/19

9:40 am-5:54 pm

Nonstop5h 14m

Charleston

Wed 11/26

6:19 pm-9:28 pm

Nonstop6h 09m

$247

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Fri 11/14

9:40 am-5:54 pm

Nonstop5h 14m

Charleston

Thu 11/20

6:59 pm-9:59 pm

Nonstop6h 00m

$257

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 10/29

7:10 am-8:20 pm

2 stops10h 10m

Charleston

Wed 11/5

7:00 am-6:20 pm

2 stops14h 20m

$260

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sun 11/2

5:35 am-7:30 pm

2 stops10h 55m

Charleston

Wed 11/5

7:00 am-9:50 pm

2 stops17h 50m

$260

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sun 12/7

10:07 am-6:24 pm

Nonstop5h 17m

Charleston

Wed 12/10

7:24 pm-10:30 pm

Nonstop6h 06m

$277

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 11/12

9:40 am-5:54 pm

Nonstop5h 14m

Charleston

Sun 11/16

6:59 pm-9:59 pm

Nonstop6h 00m

$278

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 11/19

6:03 am-7:00 pm

2 stops9h 57m

Charleston

Wed 11/26

2:52 pm-8:54 pm

1 stop9h 02m

$282

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 12/10

5:40 am-8:35 pm

2 stops11h 55m

Charleston

Sun 12/14

7:30 am-6:05 pm

2 stops13h 35m

$314

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 12/17

9:59 pm-12:12 pm

1 stop11h 13m

Charleston

Sun 12/21

6:43 pm-11:31 pm

1 stop7h 48m

$317

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sat 12/6

5:00 am-7:45 pm

2 stops11h 45m

Charleston

Sat 12/13

4:38 pm-10:28 pm

1 stop8h 50m

$342

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 21 results
1
2
3

Compare providers for flights from Seattle to Charleston

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Charleston in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Charleston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Charleston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Charleston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Charleston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Charleston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 October 17, 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, October is the cheapest month in which you can book a flight from Seattle to Charleston (average of $188). Flying from Seattle to Charleston in June is currently the most expensive (average of $308). 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 October 23, 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 October 19, 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.

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

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 October 23, 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
11,161 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,161 reviews
Alaska Airlines
8.0
Very good
11,161 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
7,982 reviews
Alaska Airlines
8.0
Very good
11,161 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Hawaiian Airlines
7.8
Good
2,789 reviews
Alaska Airlines
8.0
Very good
11,161 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
8,995 reviews
Alaska Airlines
8.0
Very good
11,161 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
11,032 reviews
Alaska Airlines
8.0
Very good
11,161 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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.

  • How popular is this Seattle to Charleston flight route?

    This flight path from Seattle/Tacoma Intl to Charleston was viewed by 7 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 5h 14m. 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), American Airlines ($202), and Southwest ($212) 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 $102. While the most popular route (Seattle/Tacoma Intl - Charleston) can be booked for $150 on average, our data indicates $336 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, October is the cheapest month in which you can book a flight from Seattle to Charleston (average of $188). Flying from Seattle to Charleston in June is currently the most expensive (average of $308). 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
Isle of Palms
Santee
Mount Pleasant
Edisto Beach

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Alternative routes for Seattle to Charleston

See prices for flight routes from nearby airports that may be better suited for you.
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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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$169Average$366FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$202Average$370FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$212Average$496FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$237Average$437FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$252Average$410FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$257Average$436FlexibilityNo cancel feeOn-time85%

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