Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Seattle to Charleston from C$ 163

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CHS
22 Jun — 29 Jun1
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 23 May 2026.

Sun 11/109:55 p.m.
SEA
-
CHS
1 stop10h 54m
Delta
Wed 21/105:30 a.m.
CHS
-
SEA
1 stop7h 56m
Delta
Deal found 22/5C$ 324
Tue 9/66:00 a.m.
SEA
-
CHS
1 stop6h 58m
Delta
Mon 15/66:24 p.m.
CHS
-
SEA
1 stop8h 35m
Delta
Deal found 21/5C$ 351
Thu 3/126:00 a.m.
SEA
-
CHS
1 stop7h 51m
Delta
Sun 6/126:00 a.m.
CHS
-
SEA
1 stop11h 25m
Delta
Deal found 21/5C$ 355
Mon 12/1011:04 p.m.
SEA
-
CHS
1 stop7h 58m
United Airlines
Sat 24/107:00 a.m.
CHS
-
SEA
1 stop8h 47m
United Airlines
Deal found 22/5C$ 363
Thu 27/87:16 a.m.
SEA
-
CHS
1 stop8h 36m
Delta
Sun 30/86:45 p.m.
CHS
-
SEA
1 stop8h 12m
Delta
Deal found 18/5C$ 368
Tue 25/811:59 p.m.
SEA
-
CHS
2 stops11h 51m
United Airlines
Mon 31/84:58 p.m.
CHS
-
SEA
1 stop8h 47m
United Airlines
Deal found 19/5C$ 370
Tue 9/65:00 a.m.
SEA
-
CHS
1 stop13h 25m
Southwest
Mon 15/65:55 p.m.
CHS
-
SEA
1 stop9h 35m
Southwest
Deal found 18/5C$ 384
Mon 8/65:30 a.m.
SEA
-
CHS
1 stop9h 24m
Delta
Tue 16/612:46 p.m.
CHS
-
SEA
1 stop10h 33m
Delta
Deal found 21/5C$ 396
Wed 11/117:00 a.m.
SEA
-
CHS
1 stop7h 45m
United Airlines
Tue 12/16:05 a.m.
CHS
-
SEA
1 stop8h 35m
United Airlines
Deal found 20/5C$ 400
Tue 4/810:40 p.m.
SEA
-
CHS
1 stop10h 27m
Delta
Wed 12/83:14 p.m.
CHS
-
SEA
1 stop9h 46m
Delta
Deal found 19/5C$ 404
Fri 18/95:15 a.m.
SEA
-
CHS
1 stop13h 10m
Southwest
Mon 21/96:35 a.m.
CHS
-
SEA
1 stop10h 20m
Southwest
Deal found 22/5C$ 414

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 23 May 2026.

Round-trip from

C$ 324

One-way from

C$ 163

Popular in

June

Cheapest in

February

Average price

C$ 581
Delta
  • Delta
  • 11/10-27/10
  • 2 total stops
  • 18h 50m total
  • Seattle to Charleston
Search Deals
Delta
  • Delta
  • 10/7
  • 1 total stop
  • 9h 59m total
  • Seattle to Charleston
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 119 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 23 May 2026.
Use the filters below to find and compare flights from Seattle to Charleston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sat 7/11

1:45 p.m.-11:56 p.m.

1 stop7h 11m

Charleston

Wed 11/11

5:55 p.m.-12:09 a.m.

1 stop9h 14m

C$ 324

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 9/6

6:00 a.m.-3:58 p.m.

1 stop6h 58m

Charleston

Tue 16/6

12:46 p.m.-8:19 p.m.

1 stop10h 33m

C$ 351

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Fri 6/11

12:15 a.m.-1:15 p.m.

2 stops10h 00m

Charleston

Wed 11/11

7:55 a.m.-12:55 p.m.

1 stop8h 00m

C$ 414

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 4/8

6:00 a.m.-6:51 p.m.

1 stop9h 51m

Charleston

Fri 14/8

5:06 p.m.-11:57 p.m.

1 stop9h 51m

C$ 424

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Fri 16/10

12:15 a.m.-5:00 p.m.

1 stop13h 45m

Charleston

Wed 21/10

6:30 a.m.-3:45 p.m.

2 stops12h 15m

C$ 426

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 28/10

11:50 p.m.-10:27 a.m.

1 stop7h 37m

Charleston

Tue 3/11

2:30 p.m.-10:59 p.m.

2 stops11h 29m

C$ 442

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 28/10

6:05 a.m.-6:10 p.m.

2 stops9h 05m

Charleston

Tue 3/11

1:35 p.m.-11:30 p.m.

2 stops12h 55m

C$ 464

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 9/6

9:25 p.m.-10:10 a.m.

1 stop9h 45m

Charleston

Tue 16/6

1:50 p.m.-8:25 p.m.

2 stops9h 35m

C$ 478
Quickest round-trip

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 26/8

9:18 a.m.-5:34 p.m.

Nonstop5h 16m

Charleston

Tue 1/9

6:37 p.m.-9:28 p.m.

Nonstop5h 51m

C$ 479

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Thu 27/8

9:18 a.m.-5:34 p.m.

Nonstop5h 16m

Charleston

Sun 30/8

6:37 p.m.-9:28 p.m.

Nonstop5h 51m

C$ 479

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/5

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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?

Booking 61 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, February is the cheapest month in which you can book a flight from Seattle to Charleston (average of C$ 396). Flying from Seattle to Charleston in June is currently the most expensive (average of C$ 686). 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 23 May 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.

How much does it cost to fly round-trip from Seattle to Charleston?

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 23 May 2026.
See what other customers who have flown with Alaska Airlines from Seattle to Charleston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,400 reviews
Check prices

Crew

8.5

Entertainment

7.0

Boarding

8.1

Overall

7.9

Food

7.0

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
7.9
Good
12,400 reviews
Alaska Airlines
7.9
Good
12,400 reviews
Check prices

Crew

8.5

Entertainment

7.0

Boarding

8.1

Overall

7.9

Food

7.0

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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 4 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 7h 11m. Delta provides one of the quickest options available for as low as C$ 324. 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.

  • What is the cheapest airline to fly from Seattle to Charleston round-trip?

    Cheapflights users have booked flights from Seattle to Charleston round-trip from C$ 337. Users have found that Alaska Airlines is 37% cheaper than the other options available to this destination.

  • 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, February is the cheapest month in which you can book a flight from Seattle to Charleston (average of C$ 396). Flying from Seattle to Charleston in June is currently the most expensive (average of C$ 686). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Top airline flying from Seattle to Charleston

Discover the top airline 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 629,999 searches. Data last updated 23 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapestC$ 337AverageC$ 524FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.