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$104+ 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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CHS
Jul 7 — Jul 141
Mon 7/7
Mon 7/14
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 Tuesday

Cheap flight deals from Seattle to Charleston

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Charleston (CHS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 2, 2025.

Round-trip from

$207
(American Airlines)

One-way from

$104
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$464

Good round-trip deal

$317 or less

Good one-way deal

$209 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. 3% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 2, 2025.

This American Airlines deal was found by Cheapflights users on 6/30. 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
Sat 11/84:01 pmCHS - SEA
1 stop10h 03mAmerican Airlines
Deal found 6/30$207
This Southwest deal was found by Cheapflights users on 7/2. 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.
Fri 8/225:00 amSEA - CHS
1 stop7h 35mSouthwest
Tue 8/268:35 amCHS - SEA
2 stops9h 45mSouthwest
Deal found 7/2$212
This Alaska Airlines deal was found by Cheapflights users on 7/1. 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.
Sat 8/309:25 amSEA - CHS
Nonstop5h 15mAlaska Airlines
Wed 9/36:13 pmCHS - SEA
Nonstop5h 50mAlaska Airlines
Deal found 7/1$257
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Thu 8/1411:45 pmSEA - CHS
1 stop7h 38mUnited Airlines
Sun 8/176:05 amCHS - SEA
1 stop8h 32mUnited Airlines
Deal found 7/2$287
This Hawaiian Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/58:58 amSEA - CHS
Nonstop5h 19mHawaiian Airlines
Mon 9/86:17 pmCHS - SEA
Nonstop5h 50mHawaiian Airlines
Deal found 6/30$297
This Delta deal was found by Cheapflights users on 6/30. 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.
Fri 7/2510:30 pmSEA - CHS
1 stop7h 58mDelta
Fri 8/85:14 pmCHS - SEA
1 stop9h 41mDelta
Deal found 6/30$318

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 2, 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

Tue 10/28

12:34 am-1:12 pm

1 stop9h 38m

Charleston

Sat 11/8

4:01 pm-11:04 pm

1 stop10h 03m

$207

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Fri 8/22

5:00 am-3:35 pm

1 stop7h 35m

Charleston

Tue 8/26

8:35 am-3:20 pm

2 stops9h 45m

$212

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sat 8/30

9:25 am-5:40 pm

Nonstop5h 15m

Charleston

Wed 9/3

6:13 pm-9:03 pm

Nonstop5h 50m

$257

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Thu 8/14

11:45 pm-10:23 am

1 stop7h 38m

Charleston

Sun 8/17

6:05 am-11:37 am

1 stop8h 32m

$287

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Fri 9/5

8:58 am-5:17 pm

Nonstop5h 19m

Charleston

Mon 9/8

6:17 pm-9:07 pm

Nonstop5h 50m

$297

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Fri 7/25

10:30 pm-9:28 am

1 stop7h 58m

Charleston

Fri 8/8

5:14 pm-11:55 pm

1 stop9h 41m

$318

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 7/30

8:16 pm-9:46 am

1 stop10h 30m

$104

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Thu 7/31

10:40 pm-3:30 pm

1 stop13h 50m

$109

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 9/17

8:58 am-5:17 pm

Nonstop5h 19m

$129

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 9/17

1:30 pm-11:48 pm

1 stop7h 18m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 14 results
1
2

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 June 27, 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 July 2, 2025.

It’s typically best to fly out from Seattle to Charleston in the afternoon. Doing so could potentially save you 42% 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 June 29, 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 July 2, 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 July 2, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta 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

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Southwest
8.0
Very good
4,272 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.8
Good
2,542 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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 13m.

  • How popular is this Seattle to Charleston flight route?

    This flight path from Seattle/Tacoma Intl to Charleston was viewed by 2 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, American Airlines ($207), Southwest ($212), and Alaska Airlines ($257) offers the cheapest pricing from Seattle to Charleston. You may be able to fly from Seattle to Charleston for 50% less than the average price by searching for these airlines.

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

    $104 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 Hawaiian Airlines, with prices starting from $109 and $129, respectively.

  • What are the cheapest flights from Seattle to Charleston?

    Looking at all options, your cheapest flight can be booked for $148. While the most popular route (Seattle/Tacoma Intl - Charleston) can be booked for $207 on average our data indicates $323 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
North Charleston
Summerville
Walterboro
Mount Pleasant
Isle of Palms
Folly Beach
Santee
Edisto Beach

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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 July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$169Average$332FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$212Average$492FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$237Average$442FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$245Average$384FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$256Average$466FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$297Average$409FlexibilityNo cancel feeOn-time85%

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