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$109+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CHS
Jun 7 — Jun 141
Sun 6/7
Sun 6/14
1 adult, Economy
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Find cheap flights from Seattle to Charleston with Cheapflights

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Charleston are usually found in February or January, booked 62 days in advance, depart on a Saturday or Thursday and return on a Thursday

Cheap 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 May 8, 2026.

This American Airlines deal was found by Cheapflights users on 5/3. 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 6/29:35 pm
SEA
-
CHS
1 stop9h 32m
American Airlines
Tue 6/97:19 pm
CHS
-
SEA
1 stop8h 40m
American Airlines
Deal found 5/3$217
This Southwest deal was found by Cheapflights users on 5/7. 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.
Mon 6/810:45 pm
SEA
-
CHS
1 stop11h 25m
Southwest
Sat 6/137:15 pm
CHS
-
SEA
1 stop7h 50m
Southwest
Deal found 5/7$222
This Delta deal was found by Cheapflights users on 5/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:38 am
SEA
-
CHS
1 stop7h 14m
Delta
Sun 8/306:45 pm
CHS
-
SEA
1 stop8h 12m
Delta
Deal found 5/6$225
This American Airlines deal was found by Cheapflights users on 5/7. 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 9/165:49 am
SEA
-
CHS
1 stop6h 51m
American Airlines
Sat 9/196:35 pm
CHS
-
SEA
1 stop7h 21m
American Airlines
Deal found 5/7$227
This Southwest deal was found by Cheapflights users on 5/7. 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.
Sat 6/66:45 am
SEA
-
CHS
1 stop9h 05m
Southwest
Sat 6/137:15 pm
CHS
-
SEA
1 stop7h 50m
Southwest
Deal found 5/7$231
This Southwest deal was found by Cheapflights users on 5/8. 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.
Tue 7/2111:05 pm
SEA
-
CHS
2 stops11h 25m
Southwest
Mon 7/274:45 pm
CHS
-
SEA
2 stops9h 20m
Southwest
Deal found 5/8$237
This American Airlines deal was found by Cheapflights users on 5/7. 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.
Thu 5/2810:27 am
SEA
-
CHS
1 stop9h 33m
American Airlines
Thu 6/41:51 pm
CHS
-
SEA
1 stop12h 07m
American Airlines
Deal found 5/7$247
This Southwest deal was found by Cheapflights users on 5/8. 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.
Tue 7/1410:45 pm
SEA
-
CHS
1 stop11h 25m
Southwest
Tue 7/214:50 pm
CHS
-
SEA
1 stop9h 40m
Southwest
Deal found 5/8$250
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Mon 9/1410:47 pm
SEA
-
CHS
1 stop8h 17m
United Airlines
Sat 9/191:00 pm
CHS
-
SEA
1 stop8h 59m
United Airlines
Deal found 5/4$263

Find 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 May 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(American Airlines)

One-way from

$109
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$397

Good round-trip deal

$432 or less

Good one-way deal

$198 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. 11% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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 May 8, 2026.
Use the filters below to find and compare flights from Seattle to Charleston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Mon 9/14

10:47 pm-10:04 am

1 stop8h 17m

Charleston

Sat 9/19

1:00 pm-6:59 pm

1 stop8h 59m

$263

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 7/1

11:05 pm-11:25 am

1 stop9h 20m

Charleston

Tue 7/21

4:50 pm-11:30 pm

1 stop9h 40m

$268
Quickest round-trip

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Thu 8/27

8:38 am-6:52 pm

1 stop7h 14m

Charleston

Sun 8/30

6:45 pm-11:57 pm

1 stop8h 12m

$282

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 9/22

8:50 am-9:28 pm

1 stop9h 38m

Charleston

Wed 9/23

2:51 pm-8:03 pm

1 stop8h 12m

$373

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 8/26

6:00 pm-10:02 am

2 stops13h 02m

Charleston

Tue 9/1

2:51 pm-11:11 pm

2 stops11h 20m

$384

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 5/26

6:00 am-8:00 pm

2 stops11h 00m

Charleston

Wed 6/10

4:15 pm-11:30 pm

2 stops10h 15m

$402

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 10/14

6:35 am-7:40 pm

2 stops10h 05m

Charleston

Sat 10/24

8:30 am-1:10 pm

1 stop7h 40m

$409

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 5/27

7:00 am-5:40 pm

1 stop7h 40m

Charleston

Tue 6/2

6:00 am-7:18 pm

2 stops16h 18m

$420

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Fri 5/29

7:05 pm-10:21 am

2 stops12h 16m

Charleston

Tue 6/2

6:00 am-7:18 pm

2 stops16h 18m

$426

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Mon 5/25

5:15 am-6:20 pm

2 stops10h 05m

Charleston

Wed 6/10

4:15 pm-11:30 pm

2 stops10h 15m

$442

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/6

Showing 1-10 of 21 resultsSorted by cheapest first
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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust 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?

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 61 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, February is the cheapest month in which you can book a flight from Seattle to Charleston (average of $288). Flying from Seattle to Charleston in June is currently the most expensive (average of $492). 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 May 8, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Charleston as you normally would.

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

The best insider tips for Seattle to Charleston flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Charleston trip
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on SEA

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

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 May 8, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andHawaiian 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
7.9
Good
12,345 reviews

Crew

8.5

Entertainment

7.0

Comfort

7.8

Overall

7.9

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
7.9
Good
12,345 reviews
Alaska Airlines
7.9
Good
12,345 reviews

Crew

8.5

Entertainment

7.0

Comfort

7.8

Overall

7.9

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,456 reviews
Alaska Airlines
7.9
Good
12,345 reviews

Crew

8.5

Entertainment

7.0

Comfort

7.8

Overall

7.9

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Hawaiian Airlines
7.8
Good
2,837 reviews
Alaska Airlines
7.9
Good
12,345 reviews

Crew

8.5

Entertainment

7.0

Comfort

7.8

Overall

7.9

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,693 reviews
Alaska Airlines
7.9
Good
12,345 reviews

Crew

8.5

Entertainment

7.0

Comfort

7.8

Overall

7.9

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
American Airlines
7.1
Good
11,669 reviews
Alaska Airlines
7.9
Good
12,345 reviews

Crew

8.5

Entertainment

7.0

Comfort

7.8

Overall

7.9

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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 6 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 19m. 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 ($155), Southwest ($173), and American Airlines ($178) offers the cheapest pricing from Seattle to Charleston. You may be able to fly from Seattle to Charleston for 60% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Seattle to Charleston one-way?

    $82 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Southwest and Delta, with prices starting from $89 and $98, respectively.

  • What are the cheapest flights from Seattle to Charleston?

    Looking at all options, your cheapest flight can be booked for $198. While the most popular route (Seattle/Tacoma Intl - Charleston) can be booked for $222 on average, our data indicates $383 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, February is the cheapest month in which you can book a flight from Seattle to Charleston (average of $288). Flying from Seattle to Charleston in June is currently the most expensive (average of $492). 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
Santee
Summerville
Walterboro
Isle of Palms
Mount Pleasant
Goose Creek
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 May 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$155Average$347FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$173Average$451FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$178Average$337FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$189Average$477FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$196Average$352FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$228Average$406FlexibilityNo cancel feeOn-time75%

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