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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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CHS
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
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 Wednesday and return on a Wednesday

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 agosto 14, 2025.

Round-trip from

$159
(American Airlines)

One-way from

$80
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$338

Good round-trip deal

$277 or less

Good one-way deal

$148 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. 6% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in August 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 agosto 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2911:42 amSEA - CHS
1 stop9h 07mAmerican Airlines
sáb. 11/16:00 amCHS - SEA
1 stop9h 51mAmerican Airlines
Deal found 8/12$159
This American Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/38:51 pmSEA - CHS
1 stop9h 48mAmerican Airlines
sáb. 9/63:10 pmCHS - SEA
1 stop9h 54mAmerican Airlines
Deal found 8/12$169
This American Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/268:08 pmSEA - CHS
1 stop11h 01mAmerican Airlines
mar. 9/235:37 pmCHS - SEA
1 stop7h 52mAmerican Airlines
Deal found 8/12$175
This American Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/278:08 pmSEA - CHS
1 stop11h 01mAmerican Airlines
mié. 9/33:57 pmCHS - SEA
1 stop9h 07mAmerican Airlines
Deal found 8/12$180
This American Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/267:45 amSEA - CHS
1 stop10h 57mAmerican Airlines
mié. 10/12:59 pmCHS - SEA
1 stop8h 00mAmerican Airlines
Deal found 8/12$234
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/2211:54 pmSEA - CHS
2 stops11h 39mUnited Airlines
mié. 9/244:12 pmCHS - SEA
1 stop8h 10mUnited Airlines
Deal found 8/14$242
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/208:08 pmSEA - CHS
1 stop11h 01mAmerican Airlines
lun. 8/251:47 pmCHS - SEA
1 stop9h 15mAmerican Airlines
Deal found 8/13$247
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/298:35 amSEA - CHS
2 stops10h 55mSouthwest
mar. 11/46:00 amCHS - SEA
2 stops10h 25mSouthwest
Deal found 8/12$251
This American Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2911:42 amSEA - CHS
1 stop9h 07mAmerican Airlines
dom. 11/27:10 pmCHS - SEA
1 stop8h 48mAmerican Airlines
Deal found 8/14$255
This Alaska Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/138:58 amSEA - CHS
Nonstop5h 19mAlaska Airlines
mié. 9/176:17 pmCHS - SEA
Nonstop5h 50mAlaska Airlines
Deal found 8/13$257

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 agosto 14, 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

mié. 10/15

8:49 pm-9:01 am

1 stop9h 12m

Charleston

jue. 10/23

7:45 pm-12:27 am

1 stop7h 42m

$159

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

mar. 9/30

6:05 am-5:44 pm

1 stop8h 39m

Charleston

mar. 10/14

5:34 pm-10:18 pm

1 stop7h 44m

$159

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

sáb. 9/13

8:51 pm-9:39 am

1 stop9h 48m

Charleston

mié. 9/17

5:37 pm-10:29 pm

1 stop7h 52m

$159

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

sáb. 10/25

11:20 pm-12:22 pm

1 stop10h 02m

Charleston

sáb. 11/1

6:00 am-12:51 pm

1 stop9h 51m

$159

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

mié. 10/29

10:32 am-11:49 pm

1 stop10h 17m

Charleston

mar. 11/4

6:39 am-11:40 am

1 stop8h 01m

$159

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

mié. 11/5

1:35 pm-11:57 pm

1 stop7h 22m

Charleston

mié. 11/12

7:00 am-3:31 pm

1 stop11h 31m

$159

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

sáb. 11/8

5:48 am-5:52 pm

1 stop9h 04m

Charleston

mar. 11/11

6:39 am-11:40 am

1 stop8h 01m

$159

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

lun. 9/22

8:18 pm-9:39 am

1 stop10h 21m

Charleston

mié. 9/24

2:59 pm-10:29 pm

1 stop10h 30m

$159

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

mié. 9/24

6:05 am-5:44 pm

1 stop8h 39m

$80

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

mié. 10/22

6:10 am-7:15 pm

1 stop10h 05m

$80

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 16 results
1
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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 August 8, 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 agosto 14, 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 August 10, 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.

Weekly flight availability from Seattle to Charleston

Explore weekly flight availability from Seattle to Charleston. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated agosto 14, 2025.

The most flights from SEA to CHS are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

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 agosto 14, 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

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

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

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

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
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

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
2,656 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

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
8,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

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

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

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 14m.

  • 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.

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

    According to our current data, Delta ($169), American Airlines ($208), 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 $119. While the most popular route (Seattle/Tacoma Intl - Charleston) can be booked for $257 on average our data indicates $298 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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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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$169Average$330FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$208Average$378FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$212Average$496FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$236Average$430FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$256Average$469FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$257Average$429FlexibilityNo cancel feeOn-time85%

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