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Cheap flights from Seattle to Charleston from C$ 135

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CHS
16 Mar — 23 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Charleston

Enter your travel dates to find the best prices.

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 14 February 2026.

Fri 17/411:15 p.m.
SEA
-
CHS
1 stop7h 54m
Delta
Sat 2/512:04 p.m.
CHS
-
SEA
1 stop10h 55m
Delta
Deal found 11/2C$ 268
Thu 26/1110:40 p.m.
SEA
-
CHS
1 stop8h 47m
United Airlines
Sat 5/126:00 a.m.
CHS
-
SEA
1 stop9h 59m
United Airlines
Deal found 11/2C$ 291
Wed 9/91:45 p.m.
SEA
-
CHS
1 stop7h 12m
Delta
Sat 19/91:00 p.m.
CHS
-
SEA
1 stop10h 29m
Delta
Deal found 13/2C$ 297
Tue 24/35:30 a.m.
SEA
-
CHS
1 stop7h 20m
Southwest
Tue 31/34:35 p.m.
CHS
-
SEA
1 stop10h 20m
Southwest
Deal found 11/2C$ 298
Sat 18/48:51 a.m.
SEA
-
CHS
2 stops10h 08m
United Airlines
Sat 25/49:28 a.m.
CHS
-
SEA
1 stop9h 35m
United Airlines
Deal found 10/2C$ 329
Fri 17/411:58 a.m.
SEA
-
CHS
1 stop9h 01m
United Airlines
Sat 25/49:28 a.m.
CHS
-
SEA
1 stop9h 35m
United Airlines
Deal found 10/2C$ 338
Mon 2/311:59 p.m.
SEA
-
CHS
2 stops11h 50m
United Airlines
Sat 7/34:55 p.m.
CHS
-
SEA
1 stop8h 46m
United Airlines
Deal found 12/2C$ 344
Mon 7/911:05 p.m.
SEA
-
CHS
1 stop10h 16m
Delta
Sat 19/91:00 p.m.
CHS
-
SEA
1 stop8h 36m
Delta
Deal found 13/2C$ 351
Sat 28/211:59 p.m.
SEA
-
CHS
1 stop9h 31m
United Airlines
Wed 4/35:05 p.m.
CHS
-
SEA
1 stop8h 38m
United Airlines
Deal found 12/2C$ 353
Wed 25/27:10 p.m.
SEA
-
CHS
2 stops10h 49m
United Airlines
Sat 28/24:05 p.m.
CHS
-
SEA
1 stop8h 07m
United Airlines
Deal found 11/2C$ 359
Fri 29/510:35 p.m.
SEA
-
CHS
1 stop10h 37m
Delta
Tue 2/64:55 p.m.
CHS
-
SEA
1 stop10h 02m
Delta
Deal found 11/2C$ 365

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 14 February 2026.

Round-trip from

C$ 268

One-way from

C$ 135

Popular in

April

Cheapest in

January

Average price

C$ 459
Delta
  • Delta
  • 17/4-2/5
  • 2 total stops
  • 18h 49m total
  • Seattle to Charleston
Search Deals
Delta
  • Delta
  • 7/5
  • 1 total stop
  • 9h 05m total
  • Seattle to Charleston
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 629,999 searches. Data last updated 14 February 2026.
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 27/4

11:15 p.m.-11:20 a.m.

1 stop9h 05m

Charleston

Tue 5/5

6:00 a.m.-2:42 p.m.

1 stop11h 42m

C$ 268

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sat 18/4

8:51 a.m.-9:59 p.m.

2 stops10h 08m

Charleston

Sat 25/4

9:28 a.m.-4:03 p.m.

1 stop9h 35m

C$ 329

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Mon 13/4

5:00 a.m.-3:01 p.m.

1 stop7h 01m

Charleston

Fri 17/4

5:12 p.m.-10:50 p.m.

1 stop8h 38m

C$ 353

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Mon 2/3

11:59 p.m.-2:49 p.m.

2 stops11h 50m

Charleston

Thu 5/3

4:55 p.m.-10:45 p.m.

1 stop8h 50m

C$ 359

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Mon 30/3

9:38 a.m.-5:53 p.m.

Nonstop5h 15m

Charleston

Wed 1/4

6:53 p.m.-10:02 p.m.

Nonstop6h 09m

C$ 377

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sat 28/2

9:55 p.m.-11:18 a.m.

1 stop10h 23m

Charleston

Mon 2/3

5:27 a.m.-10:07 a.m.

1 stop7h 40m

C$ 391

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Thu 5/3

7:00 a.m.-6:04 p.m.

1 stop8h 04m

Charleston

Thu 12/3

4:55 p.m.-10:45 p.m.

1 stop8h 50m

C$ 398

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Mon 23/3

11:55 p.m.-1:35 p.m.

2 stops10h 40m

Charleston

Thu 26/3

5:45 p.m.-12:30 a.m.

1 stop9h 45m

C$ 457

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 17/3

12:35 a.m.-11:34 a.m.

1 stop7h 59m

Charleston

Tue 24/3

6:53 p.m.-10:02 p.m.

Nonstop6h 09m

C$ 459

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 10/3

5:55 p.m.-11:34 a.m.

1 stop14h 39m

Charleston

Tue 17/3

6:32 p.m.-9:46 p.m.

Nonstop6h 14m

C$ 459

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 23 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 6 February 2026.

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Charleston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Charleston?

Currently, January is the cheapest month in which you can book a flight from Seattle to Charleston (average of C$ 242). Flying from Seattle to Charleston in June is currently the most expensive (average of C$ 418). 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 14 February 2026.

When flying from Seattle to Charleston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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?

    The Seattle/Tacoma Intl to Charleston flight path was viewed by 3 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?

    A quick flight from Seattle to Charleston can take about 5h 15m. Delta provides one of the quickest options available for as low as C$ 377. Seattle and Charleston are separated by a distance of 3877 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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, January is the cheapest month in which you can book a flight from Seattle to Charleston (average of C$ 242). Flying from Seattle to Charleston in June is currently the most expensive (average of C$ 418). 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

Travelling to a place near Charleston?

Book flights to Charleston if you plan to visit one of these locations
Walterboro

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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.
Seattle to Charlotte flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Seattle to Charleston?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Charleston from Seattle today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Seattle to Charleston?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Charleston from Seattle.

Can Cheapflights find flights from Seattle to Charleston with no change fees?

Need flexible booking options for your flight to Charleston from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Seattle to Charleston become cheaper?

Of course! You can now track prices for flights from Seattle to Charleston and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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