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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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CHS
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$181
(American Airlines)

One-way from

$124
(Delta)

Popular in

December

Cheapest in

January

Average price

$487

Good round-trip deal

$337 or less

Good one-way deal

$189 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 June 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 junio 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. 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. 8/56:18 amSEA - CHS
1 stop9h 59mAmerican Airlines
mar. 8/122:47 pmCHS - SEA
1 stop10h 13mAmerican Airlines
Deal found 6/12$181
This Delta deal was found by Cheapflights users on 6/11. 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.
mié. 10/291:45 pmSEA - CHS
1 stop6h 56mDelta
mar. 11/43:10 pmCHS - SEA
1 stop8h 22mDelta
Deal found 6/11$207
This Southwest deal was found by Cheapflights users on 6/10. 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.
mar. 7/810:40 pmSEA - CHS
1 stop10h 05mSouthwest
mar. 7/151:05 pmCHS - SEA
1 stop13h 10mSouthwest
Deal found 6/10$244
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
mar. 8/128:47 amSEA - CHS
Nonstop5h 13mAlaska Airlines
mar. 8/196:03 pmCHS - SEA
Nonstop5h 57mAlaska Airlines
Deal found 6/11$277
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/2711:20 pmSEA - CHS
1 stop7h 54mUnited Airlines
mar. 8/57:40 pmCHS - SEA
1 stop8h 16mUnited Airlines
Deal found 6/12$282
This Hawaiian Airlines deal was found by Cheapflights users on 6/12. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/139:40 amSEA - CHS
Nonstop5h 14mHawaiian Airlines
jue. 11/206:59 pmCHS - SEA
Nonstop5h 57mHawaiian Airlines
Deal found 6/12$298
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/15:30 pmSEA - CHS
2 stops24h 23mSpirit Airlines
lun. 8/410:53 amCHS - SEA
2 stops32h 32mSpirit Airlines
Deal found 6/12$374
This Mytrip deal was found by Cheapflights users on 6/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/235:30 pmSEA - CHS
3 stops37h 23mMultiple Airlines
dom. 7/2710:53 amCHS - SEA
2 stops24h 06mMultiple Airlines
Deal found 6/9$464

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 junio 12, 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

mar. 8/5

6:18 am-7:17 pm

1 stop9h 59m

Charleston

mar. 8/12

2:47 pm-10:00 pm

1 stop10h 13m

$181

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

mié. 10/29

1:45 pm-11:41 pm

1 stop6h 56m

Charleston

mar. 11/4

3:10 pm-8:32 pm

1 stop8h 22m

$207

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

mar. 7/8

10:40 pm-11:45 am

1 stop10h 05m

Charleston

mar. 7/15

1:05 pm-11:15 pm

1 stop13h 10m

$244

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

mar. 8/12

8:47 am-5:00 pm

Nonstop5h 13m

Charleston

mar. 8/19

6:03 pm-9:00 pm

Nonstop5h 57m

$277

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

dom. 7/27

11:20 pm-10:14 am

1 stop7h 54m

Charleston

mar. 8/5

7:40 pm-12:56 am

1 stop8h 16m

$282

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

jue. 11/13

9:40 am-5:54 pm

Nonstop5h 14m

Charleston

jue. 11/20

6:59 pm-9:56 pm

Nonstop5h 57m

$298

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

vie. 8/1

5:30 pm-8:53 pm

2 stops24h 23m

Charleston

lun. 8/4

10:53 am-4:25 pm

2 stops32h 32m

$374

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

mié. 7/23

5:30 pm-9:53 am

3 stops37h 23m

Charleston

dom. 7/27

10:53 am-7:59 am

2 stops24h 06m

$464

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

vie. 7/11

11:59 pm-10:38 am

1 stop7h 39m

$124

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

mié. 8/6

8:08 pm-10:09 am

1 stop11h 01m

$130

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 17 results
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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 9, 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 junio 12, 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 8, 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.

Rainfall in Charleston by month

Plan your trip to Charleston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Charleston ranges from 2.4 - 7.2 inches per month. August is typically the wettest month, when rainfall can reach 7.2 in. November is typically the driest time to visit Charleston when rainfall is around 2.4 in.

Temperature in Charleston by month

Plan your trip to Charleston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Charleston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

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 junio 12, 2025.
To help decide which airline to fly from Seattle to Charleston, see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Qatar Airways
7.4
Good
3,584 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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.

  • 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 ($181), Southwest ($244), and Delta ($253) offers the cheapest pricing from Seattle to Charleston. You may be able to fly from Seattle to Charleston for 56% less than the average price by searching for these airlines.

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

    $124 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and Spirit Airlines, with prices starting from $130 and $141, 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 $363 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$196Average$340FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$238Average$447FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$251Average$384FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$266Average$467FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$297Average$429FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$332Average$496FlexibilityNo cancel feeOn-time63%

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