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Cheap flights from Seattle to Charleston from C$ 142

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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CHS
2 Apr — 9 Apr1
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 28 March 2025.

Round-trip from

C$ 389

One-way from

C$ 142

Popular in

December

Cheapest in

January

Average price

C$ 533
Delta
  • Delta
  • 20/4-25/4
  • 2 total stops
  • 19h 26m total
  • Seattle to Charleston
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Delta
  • Delta
  • 7/4
  • 1 total stop
  • 10h 16m total
  • Seattle to Charleston
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 40 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 28 March 2025.

Sun 20/412:45 a.m.SEA - CHS
1 stop9h 13mDelta
Fri 25/412:50 p.m.CHS - SEA
1 stop10h 13mDelta
Deal found 28/3C$ 389
Fri 29/811:55 p.m.SEA - CHS
2 stops11h 18mUnited Airlines
Fri 5/94:00 p.m.CHS - SEA
1 stop8h 12mUnited Airlines
Deal found 27/3C$ 417
Sat 10/59:41 a.m.SEA - CHS
Nonstop5h 13mAlaska Airlines
Wed 14/56:54 p.m.CHS - SEA
Nonstop6h 06mAlaska Airlines
Deal found 28/3C$ 426
Mon 9/610:55 p.m.SEA - CHS
2 stops9h 15mSouthwest
Wed 11/62:45 p.m.CHS - SEA
1 stop12h 30mSouthwest
Deal found 27/3C$ 447
Fri 2/59:41 a.m.SEA - CHS
Nonstop5h 13mHawaiian Airlines
Mon 5/56:54 p.m.CHS - SEA
Nonstop6h 06mHawaiian Airlines
Deal found 28/3C$ 540
Fri 4/411:59 p.m.SEA - CHS
1 stop8h 14mSun Country Air
Sun 6/49:30 p.m.CHS - SEA
1 stop22h 44mSun Country Air
Deal found 28/3C$ 815
Sat 9/812:20 a.m.SEA - CHS
1 stop7h 17mMultiple Airlines
Mon 18/86:03 p.m.CHS - SEA
Nonstop5h 57mMultiple Airlines
Deal found 27/3C$ 942

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 28 March 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

Sun 20/4

12:45 a.m.-12:58 p.m.

1 stop9h 13m

Charleston

Fri 25/4

12:50 p.m.-8:03 p.m.

1 stop10h 13m

C$ 389

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Fri 29/8

11:55 p.m.-2:13 p.m.

2 stops11h 18m

Charleston

Fri 5/9

4:00 p.m.-9:12 p.m.

1 stop8h 12m

C$ 417

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sat 10/5

9:41 a.m.-5:54 p.m.

Nonstop5h 13m

Charleston

Wed 14/5

6:54 p.m.-10:00 p.m.

Nonstop6h 06m

C$ 426

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Mon 9/6

10:55 p.m.-11:10 a.m.

2 stops9h 15m

Charleston

Wed 11/6

2:45 p.m.-12:15 a.m.

1 stop12h 30m

C$ 447

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Fri 2/5

9:41 a.m.-5:54 p.m.

Nonstop5h 13m

Charleston

Mon 5/5

6:54 p.m.-10:00 p.m.

Nonstop6h 06m

C$ 540

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sat 9/8

12:20 a.m.-10:37 a.m.

1 stop7h 17m

Charleston

Mon 18/8

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

Nonstop5h 57m

C$ 942

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Mon 7/4

10:59 p.m.-12:15 p.m.

1 stop10h 16m

C$ 142

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sun 4/5

9:41 a.m.-5:54 p.m.

Nonstop5h 13m

C$ 213

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sat 26/4

12:46 p.m.-11:59 p.m.

1 stop8h 13m

C$ 256

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Thu 19/6

8:05 a.m.-10:25 p.m.

2 stops11h 20m

C$ 377

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/3

Showing 1-10 of 11 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 21 March 2025.

Booking 24 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 May is currently the most expensive (average of C$ 542). 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 28 March 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.

Weekly flight availability from Seattle to Charleston

Explore weekly flight availability from Seattle to Charleston. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 28 March 2025.

The most flights from SEA to CHS are scheduled on a Tuesday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

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 28 March 2025.
See what other customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,273 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,273 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,896 reviews
Southwest
8.1
Very good
4,273 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Hawaiian Airlines
7.9
Good
2,336 reviews
Southwest
8.1
Very good
4,273 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,273 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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.

  • What airports do I use to fly from Seattle to Charleston?

    If you book a flight from Seattle to Charleston, you will be flying from Seattle/Tacoma Intl to Charleston. Flights to Charleston (CHS) from Seattle/Tacoma Intl (SEA) take 5h 21m for a nonstop flight. There is 1 flight from Seattle/Tacoma Intl to Charleston per day from 1 airline.

  • How popular is this Seattle to Charleston flight route?

    The Seattle/Tacoma Intl to Charleston flight path was viewed by 6 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$ 389. Other airlines that can offer you cheap pricing are United Airlines, from C$ 417, and Alaska Airlines, from C$ 426. Users have found that Delta is 35% 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$ 142), Hawaiian Airlines (C$ 213), and United Airlines (C$ 256).

  • 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 May is currently the most expensive (average of C$ 542). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
Santee

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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 28 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapestC$ 280AverageC$ 426FlexibilityNo 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.

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