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$124+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CHS
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
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”

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Charleston are usually found in February or January, booked 38 days in advance, depart on a Friday or Saturday and return on a Wednesday

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 July 27, 2026.

This American Airlines deal was found by Cheapflights users on 7/22. 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.
Tue 9/298:24 am
SEA
-
CHS
1 stop9h 42m
American Airlines
Thu 10/13:41 pm
CHS
-
SEA
1 stop10h 28m
American Airlines
Deal found 7/22$237
This United Airlines deal was found by Cheapflights users on 7/24. 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 9/2211:00 pm
SEA
-
CHS
1 stop8h 37m
United Airlines
Tue 9/293:03 pm
CHS
-
SEA
1 stop9h 52m
United Airlines
Deal found 7/24$242
This United Airlines deal was found by Cheapflights users on 7/22. 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.
Fri 9/1811:00 pm
SEA
-
CHS
1 stop8h 41m
United Airlines
Tue 9/227:00 am
CHS
-
SEA
1 stop10h 52m
United Airlines
Deal found 7/22$247
This Delta deal was found by Cheapflights users on 7/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:43 am
SEA
-
CHS
1 stop9h 32m
Delta
Mon 9/215:35 pm
CHS
-
SEA
1 stop9h 23m
Delta
Deal found 7/23$257
This Southwest deal was found by Cheapflights users on 7/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:20 am
SEA
-
CHS
1 stop12h 50m
Southwest
Thu 10/12:35 pm
CHS
-
SEA
2 stops13h 00m
Southwest
Deal found 7/22$263
This deal was found by Cheapflights users on 7/23. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:00 am
SEA
-
CHS
1 stop9h 01m
Delta
Tue 10/205:35 pm
CHS
-
SEA
1 stop9h 17m
Delta
Deal found 7/23$266
This Southwest deal was found by Cheapflights users on 7/24. 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 9/165:20 am
SEA
-
CHS
1 stop12h 55m
Southwest
Mon 9/216:30 pm
CHS
-
SEA
1 stop8h 25m
Southwest
Deal found 7/24$271
This United Airlines deal was found by Cheapflights users on 7/26. 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 8/125:00 am
SEA
-
CHS
1 stop7h 28m
United Airlines
Sat 8/154:58 pm
CHS
-
SEA
1 stop8h 45m
United Airlines
Deal found 7/26$274
This Delta deal was found by Cheapflights users on 7/24. 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.
Sun 11/229:55 pm
SEA
-
CHS
1 stop10h 05m
Delta
Fri 11/272:30 pm
CHS
-
SEA
1 stop10h 42m
Delta
Deal found 7/24$276
This American Airlines deal was found by Cheapflights users on 7/25. 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 8/276:25 am
SEA
-
CHS
1 stop9h 23m
American Airlines
Sun 8/305:05 am
CHS
-
SEA
1 stop7h 40m
American Airlines
Deal found 7/25$277
This United Airlines deal was found by Cheapflights users on 7/24. 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 8/2511:59 pm
SEA
-
CHS
2 stops12h 11m
United Airlines
Sun 8/308:30 am
CHS
-
SEA
1 stop7h 52m
United Airlines
Deal found 7/24$279

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 July 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$237
(American Airlines)

One-way from

$124
(American Airlines)

Popular in

November

Cheapest in

February

Average price

$418

Good round-trip deal

$347 or less

Good one-way deal

$203 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. 12% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 27, 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

Tue 9/22

11:00 pm-10:37 am

1 stop8h 37m

Charleston

Tue 9/29

3:03 pm-9:55 pm

1 stop9h 52m

$242

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Fri 9/18

11:04 pm-10:03 am

1 stop7h 59m

Charleston

Tue 9/22

10:19 am-7:15 pm

2 stops11h 56m

$252

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Thu 8/20

11:03 am-9:35 pm

1 stop7h 32m

Charleston

Mon 8/24

4:38 pm-10:43 pm

1 stop9h 05m

$287

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 9/29

6:40 am-6:20 pm

2 stops8h 40m

Charleston

Thu 10/1

2:35 pm-12:35 am

2 stops13h 00m

$304

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Mon 11/30

12:15 am-12:50 pm

2 stops9h 35m

Charleston

Tue 12/8

7:55 am-12:55 pm

1 stop8h 00m

$307

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Thu 9/24

11:05 pm-10:55 am

1 stop8h 50m

Charleston

Sat 10/3

1:15 pm-9:40 pm

2 stops11h 25m

$327

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Thu 8/27

11:05 pm-10:55 am

1 stop8h 50m

Charleston

Sun 8/30

2:05 pm-9:45 pm

2 stops10h 40m

$339
Quickest round-trip

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sat 9/26

9:39 am-6:06 pm

Nonstop5h 27m

Charleston

Tue 9/29

7:09 pm-10:00 pm

Nonstop5h 51m

$357

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Fri 10/23

11:14 pm-1:55 pm

2 stops11h 41m

Charleston

Tue 10/27

9:55 am-5:54 pm

2 stops10h 59m

$368

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Thu 8/20

6:30 am-6:35 pm

2 stops9h 05m

Charleston

Wed 8/26

7:35 am-9:15 pm

2 stops16h 40m

$369

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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?

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 37 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 $287). Flying from Seattle to Charleston in November is currently the most expensive (average of $536). 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 July 27, 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?

Airfare is below average for this route at the moment.

Seattle to Charleston flights typically cost between $249 and $648 in September.
The cheapest round-trip price found within the last 5 days was $237 on American Airlines (Sep 29-Oct 1).

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 July 27, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta 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.
Southwest
8.0
Very good
4,229 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Southwest
8.0
Very good
4,229 reviews
Southwest
8.0
Very good
4,229 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Alaska Airlines
7.9
Good
12,718 reviews
Southwest
8.0
Very good
4,229 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Delta
7.8
Good
8,483 reviews
Southwest
8.0
Very good
4,229 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
United Airlines
7.4
Good
10,042 reviews
Southwest
8.0
Very good
4,229 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
American Airlines
7.1
Good
11,837 reviews
Southwest
8.0
Very good
4,229 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

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 5 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 8h 37m. The distance between Seattle and Charleston is about 2409 mi.

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

    According to our current data, Delta ($118), American Airlines ($178), and Hawaiian Airlines ($189) offers the cheapest pricing from Seattle to Charleston. You may be able to fly from Seattle to Charleston for 71% 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 $109, respectively.

  • What are the cheapest flights from Seattle to Charleston?

    Looking at all options, your cheapest flight can be booked for $203. While the most popular route (Seattle/Tacoma Intl - Charleston) can be booked for $242 on average, our data indicates $389 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 $287). Flying from Seattle to Charleston in November is currently the most expensive (average of $536). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 July 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$118Average$346FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$178Average$335FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$189Average$478FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$209Average$352FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$236Average$436FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$249Average$476FlexibilityNo cancel feeOn-time63%

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