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Cheap flights from Seattle to Charleston from C$ 170

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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CHS
17 Jun — 24 Jun1
1 adult

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 12 June 2025.

Round-trip from

C$ 283

One-way from

C$ 170

Popular in

December

Cheapest in

January

Average price

C$ 666

Good round-trip deal

C$ 540 or less
Delta
  • Delta
  • 25/10-1/11
  • 2 total stops
  • 20h 06m total
  • Seattle to Charleston
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Delta
  • Delta
  • 11/7
  • 1 total stop
  • 7h 39m total
  • Seattle to Charleston
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Highest demand for flights based on searches. 3% potential increase in price (C$ 26 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 38 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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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 12 June 2025.

Sat 25/109:55 p.m.SEA - CHS
1 stop10h 02mDelta
Sat 1/117:20 a.m.CHS - SEA
1 stop10h 04mDelta
Deal found 10/6C$ 283
Tue 8/710:40 p.m.SEA - CHS
1 stop10h 05mSouthwest
Tue 15/71:05 p.m.CHS - SEA
1 stop13h 10mSouthwest
Deal found 10/6C$ 334
Tue 12/88:47 a.m.SEA - CHS
Nonstop5h 13mAlaska Airlines
Tue 19/86:03 p.m.CHS - SEA
Nonstop5h 57mAlaska Airlines
Deal found 11/6C$ 379
Sun 27/711:20 p.m.SEA - CHS
1 stop7h 54mUnited Airlines
Tue 5/87:40 p.m.CHS - SEA
1 stop8h 16mUnited Airlines
Deal found 12/6C$ 386
Thu 3/79:14 p.m.SEA - CHS
1 stop11h 06mJetBlue
Sun 6/711:00 a.m.CHS - SEA
1 stop11h 58mJetBlue
Deal found 11/6C$ 387
Tue 5/88:47 a.m.SEA - CHS
Nonstop5h 13mHawaiian Airlines
Tue 12/86:03 p.m.CHS - SEA
Nonstop5h 57mHawaiian Airlines
Deal found 10/6C$ 435
Wed 18/66:24 p.m.SEA - CHS
1 stop14h 35mSun Country Air
Thu 26/61:04 p.m.CHS - SEA
1 stop30h 52mSun Country Air
Deal found 12/6C$ 731

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 12 June 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

Sat 25/10

9:55 p.m.-10:57 a.m.

1 stop10h 02m

Charleston

Sat 1/11

7:20 a.m.-2:24 p.m.

1 stop10h 04m

C$ 283

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 8/7

10:40 p.m.-11:45 a.m.

1 stop10h 05m

Charleston

Tue 15/7

1:05 p.m.-11:15 p.m.

1 stop13h 10m

C$ 334

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 12/8

8:47 a.m.-5:00 p.m.

Nonstop5h 13m

Charleston

Tue 19/8

6:03 p.m.-9:00 p.m.

Nonstop5h 57m

C$ 379

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sun 27/7

11:20 p.m.-10:14 a.m.

1 stop7h 54m

Charleston

Tue 5/8

7:40 p.m.-12:56 a.m.

1 stop8h 16m

C$ 386

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Thu 3/7

9:14 p.m.-11:20 a.m.

1 stop11h 06m

Charleston

Sun 6/7

11:00 a.m.-7:58 p.m.

1 stop11h 58m

C$ 387

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Fri 26/9

8:59 a.m.-5:17 p.m.

Nonstop5h 18m

Charleston

Mon 29/9

6:17 p.m.-9:03 p.m.

Nonstop5h 46m

C$ 462

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Fri 11/7

11:59 p.m.-10:38 a.m.

1 stop7h 39m

C$ 170

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 2/7

10:05 p.m.-10:14 a.m.

1 stop9h 09m

C$ 197

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 1/7

8:47 a.m.-5:00 p.m.

Nonstop5h 13m

C$ 204

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 7/10

8:35 a.m.-8:20 p.m.

2 stops8h 45m

C$ 239

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 12 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 9 June 2025.

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, September is the cheapest month in which you can book a flight from Seattle to Charleston (average of C$ 407). Flying from Seattle to Charleston in March is currently the most expensive (average of C$ 499). 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 12 June 2025.

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.

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 61.0 - 183.0 mm per month. August is typically the wettest month, when rainfall can reach 183.0 mm. November is typically the driest time to visit Charleston when rainfall is around 61.0 mm.

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 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).

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 12 June 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta 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
8.0
Very good
10,000 reviews
Check prices

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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
Check prices

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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
Check prices

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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
Check prices

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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
Check prices

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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?

    The Seattle/Tacoma Intl to Charleston flight path was viewed by 7 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?

    Cheapflights users have booked flights from Seattle to Charleston round-trip from C$ 283. Other airlines that can offer you cheap pricing are Southwest, from C$ 334, and Alaska Airlines, from C$ 379. Users have found that Delta is 50% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from Seattle to Charleston are Delta (C$ 170), United Airlines (C$ 197), and Alaska Airlines (C$ 204).

  • What are the cheapest flights from Seattle to Charleston?

    On average you can expect to pay C$ 585 for a flight from Seattle to Charleston. The cheapest flight overall is C$ 464 while the most popular route, (Seattle/Tacoma Intl - Charleston) is currently priced at C$ 265.

  • 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, September is the cheapest month in which you can book a flight from Seattle to Charleston (average of C$ 407). Flying from Seattle to Charleston in March is currently the most expensive (average of C$ 499). 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

Browse thousands of different options on Cheapflights for your next trip

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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

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 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapestC$ 268AverageC$ 464FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

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

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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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