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$99+ 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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CHS
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
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 24 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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(Delta)

One-way from

$99
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$373

Good round-trip deal

$388 or less

Good one-way deal

$189 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Charleston flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Charleston flights.
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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. 2% potential increase in price ($12 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 March 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 March 25, 2025.

This Delta deal was found by Cheapflights users on 3/24. 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.
Mon 4/2110:30 pmSEA - CHS
1 stop7h 55mDelta
Fri 4/2512:50 pmCHS - SEA
1 stop10h 13mDelta
Deal found 3/24$257
This American Airlines deal was found by Cheapflights users on 3/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/310:00 pmSEA - CHS
1 stop8h 51mAmerican Airlines
Thu 4/104:58 pmCHS - SEA
1 stop9h 11mAmerican Airlines
Deal found 3/24$267
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/159:25 amSEA - CHS
Nonstop5h 13mAlaska Airlines
Tue 4/226:54 pmCHS - SEA
Nonstop6h 06mAlaska Airlines
Deal found 3/24$268
This United Airlines deal was found by Cheapflights users on 3/24. 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 4/85:14 amSEA - CHS
1 stop6h 49mUnited Airlines
Tue 4/156:30 amCHS - SEA
1 stop8h 18mUnited Airlines
Deal found 3/24$272
This Hawaiian Airlines deal was found by Cheapflights users on 3/25. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:15 amSEA - CHS
Nonstop5h 16mHawaiian Airlines
Tue 11/186:45 pmCHS - SEA
Nonstop5h 57mHawaiian Airlines
Deal found 3/25$298
This Southwest deal was found by Cheapflights users on 3/24. 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.
Tue 4/297:35 amSEA - CHS
2 stops11h 10mSouthwest
Sat 5/38:05 amCHS - SEA
2 stops11h 00mSouthwest
Deal found 3/24$323
This Mytrip deal was found by Cheapflights users on 3/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/18:56 pmSEA - CHS
2 stops34h 16mSpirit Airlines
Sat 5/106:00 amCHS - SEA
2 stops21h 10mSpirit Airlines
Deal found 3/24$324
This Trip.com deal was found by Cheapflights users on 3/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/99:41 amSEA - CHS
Nonstop5h 13mMultiple Airlines
Fri 5/166:56 pmCHS - SEA
Nonstop6h 03mMultiple Airlines
Deal found 3/24$341
This Sun Country Air deal was found by Cheapflights users on 3/24. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/138:30 amSEA - CHS
1 stop25h 26mSun Country Air
Thu 4/171:31 pmCHS - SEA
1 stop30h 48mSun Country Air
Deal found 3/24$390
This JetBlue deal was found by Cheapflights users on 3/24. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/411:55 pmSEA - CHS
1 stop10h 47mJetBlue
Wed 4/92:21 pmCHS - SEA
1 stop11h 06mJetBlue
Deal found 3/24$445

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 March 25, 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

Mon 4/21

10:30 pm-9:25 am

1 stop7h 55m

Charleston

Fri 4/25

12:50 pm-8:03 pm

1 stop10h 13m

$257

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 4/15

9:25 am-5:38 pm

Nonstop5h 13m

Charleston

Tue 4/22

6:54 pm-10:00 pm

Nonstop6h 06m

$268

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 4/8

5:14 am-3:03 pm

1 stop6h 49m

Charleston

Tue 4/15

6:30 am-11:48 am

1 stop8h 18m

$272

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Mon 6/9

10:41 pm-10:19 am

1 stop8h 38m

Charleston

Mon 6/16

7:04 pm-12:44 am

1 stop8h 40m

$285

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 4/29

7:35 am-9:45 pm

2 stops11h 10m

Charleston

Sat 5/3

8:05 am-4:05 pm

2 stops11h 00m

$323

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Thu 5/1

8:56 pm-10:12 am

2 stops34h 16m

Charleston

Sat 5/10

6:00 am-12:10 am

2 stops21h 10m

$324

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Fri 5/9

9:41 am-5:54 pm

Nonstop5h 13m

Charleston

Fri 5/16

6:56 pm-9:59 pm

Nonstop6h 03m

$341

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 4/29

9:41 am-5:54 pm

Nonstop5h 13m

Charleston

Sat 5/3

6:54 pm-10:00 pm

Nonstop6h 06m

$358

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sun 4/13

8:30 am-12:56 pm

1 stop25h 26m

Charleston

Thu 4/17

1:31 pm-5:19 pm

1 stop30h 48m

$390

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Fri 4/4

11:55 pm-1:42 pm

1 stop10h 47m

Charleston

Wed 4/9

2:21 pm-10:27 pm

1 stop11h 06m

$445

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 19 results
1
2

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 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?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Charleston. Price data was last updated on March 21, 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 24 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 March 25, 2025.

It’s typically best to fly out from Seattle to Charleston in the afternoon. Doing so could potentially save you 44% 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 March 23, 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 March 25, 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
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

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
9,782 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

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
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

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
7,890 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

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
2,330 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

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
8,605 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

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, Delta ($257), American Airlines ($267), and United Airlines ($272) offers the cheapest pricing from Seattle to Charleston. You may be able to fly from Seattle to Charleston for 39% less than the average price by searching for these airlines.

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

    $99 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 Hawaiian Airlines and Spirit Airlines, with prices starting from $149 and $155, respectively.

  • What are the cheapest flights from Seattle to Charleston?

    Looking at all options, your cheapest flight can be booked for $174. While the most popular route (Seattle/Tacoma Intl - Charleston) can be booked for $227 on average our data indicates $368 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
Santee
Mount Pleasant
Isle of Palms
Folly Beach
Walterboro
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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$169Average$357FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$237Average$464FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$256Average$393FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$266Average$469FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$308Average$352FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$451Average$496FlexibilityNo cancel feeOn-time63%
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